Batteries

LiPoly battery plugged into a Backpack Add-On for tthe Adafruit Pro Trinket

Find the right battery for your project!

Explore all the batteries at Adafruit!

What's YOUR favorite battery? What a powerful question! Maybe it's the ubiquitous CR2032 you use to drive your TimeSquared Watch. Or maybe it's a heavy hitter - like the 6600mAh Lithium Ion Battery pack that you used to turn your Raspberry Pi display set up portable. Or maybe you just love the timeless AAA since it reminds you of a walkie-talkie you had when you were a kid.

Whatever your favorite is, Adafruit has the right battery for your power needs and issues. Get great batteries and powerful chargers for all types of applications and projects. Our goal is to provide as many quality batteries and battery accessories as we possibly can, to help make sure your projects run to the best of their abilities, with the perfect amount of power. So charge up and power on - we have the size, chemistry, voltage and type of battery you're looking for!

Top view shot of a red and black JST PH 2-Pin Cable to Female Connector - 100mm.

JST PH 2-Pin Cable - Female Connector 100mm

Product ID: 261

Red and black tinned wires with a 2-pin JST PH connector on the end. 4" / 100mm long. Matches up nicely with our Lipoly chargers! We have the socket 'mating' version of this cable over here, as well as an 'extension' cable that has one of each soldered together. If you want a switch in the middle, try this switched extension cable. Finally, for PCB and breadboard...

$0.75

In stock

Lithium Ion Polymer Battery - 3.7v 100mAh

Product ID: 1570

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of ~100mAh for a total of about 0.4 Wh. If you need a larger battery, we have a full range of bigger cells The batteries come pre-attached with a high quality 2-pin JST-PH connector as...

$5.95

In stock

JST PH 2-Pin Cable – Male Header 200mm

Product ID: 3814

For a really long time we assumed that the JST PH didn't have a free-hanging male header version. But then we found this JST-PH 2-pin Male Cable, and we were like, this is perfect! It's not a genuine JST connector, but it's 100% compatible with a nice clicky connection that you can undo without tearing the contacts from the housing. Plugs in nicely all with our...

$0.75

In stock

Top view of PowerBoost 500 Charger connected to a battery and a white iPhone charger charging an iPhone.

PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+

Product ID: 1944

PowerBoost 500C is the perfect power supply for your portable project! With a built-in battery charger circuit, you'll be able to keep your project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects. If you need a 1A...

$14.95

In stock

Front shot of JST-PH Battery Extension Cable.

JST-PH Battery Extension Cable - 500mm

Product ID: 1131

By popular demand, we now have a handy extension cord for all of our JST PH-terminated battery packs (such as our LiIon/LiPoly and 3xAAA holders). One end has a JST-PH compatible socket, and the other end has a matching plug. Between the two, 500mm of color coded wire. Handy for wearable projects where you may want the battery pack far from your Flora but useful in...

$1.95

In stock

Single CR2032 / 20mm Coin Cell Battery Holder with Switch

Product ID: 4856

This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds one 20mm coin cell (also known as CR2032) in series to generate 3V nominal. 20mm coin cells are popular as they are used in keychain lights and remotes, so they are easy to get and fairly low cost. They tend to have about 220mAh capacity. The holder is made of plastic and...

$0.95

In stock

JST-PH 2-pin Jumper Cable - 100mm long

Product ID: 4714

We use 2 pin JST PH connectors for all our battery packs, and if you want to put a board in series, like our LC709203F Stemma QT battery gauge, this cable will be very handy! Both ends have a JST PH 2mm pitch 2-pin plug. Between the two, 100mm of color coded wire - red for power, black for ground. No more soldering two pig-tails together! This is an A-A cable, that...

$0.95

In stock

3 x AAA Battery Holder with On/Off Switch and 2-Pin JST

Product ID: 727

This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is slim, and 3 AAA's add up to about 3.3-4.5V, a very similar range to Lithium Ion/polymer (Li-Ion) batteries and have an on-off switch. That makes them ideal for use with 3.3V projects that have a 2-pin JST connector meant for one...

$1.95

In stock

8 x AA battery holder with 5.5mm/2.1mm Plug and On/Off Switch

Product ID: 875

Make a portable power brick with plenty of juice! Use Alkaline AA's for a 12V 3000-4000mAh power supply, or rechargeable NiMH for 2000mAh 9.6V supply. Either one is good for running electronics that have a 5V voltage regulator (thus requiring a 7V+ supply) or perhaps some motors or solenoids. Perfect for portable Arduinos, motors, solenoids, 12V LED strips, etc. An...

$5.95

In stock

Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/MicroUSB Jack connected to battery.

Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/MicroUSB Jack - v1

Product ID: 1904

Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any MicroUSB cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs - one red and one green. While charging, the red LED is lit....

$6.95

In stock

Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack

Product ID: 4410

Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any USB C cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs - one red and one green. While charging, the red LED is lit....

$5.95

In stock

Lithium Ion Polymer Battery - 3.7v 2500mAh

Product ID: 328

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2500mAh for a total of about 10 Wh. If you need a smaller battery, we also have a 1200mAh model The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and...

$14.95

In stock

Angled shot of 150mm/6" long 4-Pin JST-PH Cable

STEMMA Cable - 4 Pin JST-PH 2mm Cable–Female/Female - 150mm/6" Long

Product ID: 3568

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-PH female 4-pin connectors on each end. These types of JST cables are commonly found on small rechargeable battery packs, RC receivers and transmitters, tiny cameras, and other small electronic devices We're using these to connect to STEMMA boards, the connector is compact yet durable, stays...

$0.75

In stock

Angled shot of closed 2 x 2032 coin cell battery holder with on-off switch and JST PH Connector.

2 x CR2032 Coin Cell Battery Holder - 6V output - On/Off switch

Product ID: 783

This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm coin cells (2032 or CR2032 are the most popular size) in series to generate 6V nominal. (If you want only 3V, we suggest sticking a crumpled piece of tin foil in one of the slots.) 20mm coin cells are popular as they are used in keychain lights, so they are easy to...

$1.95

In stock

Lithium Ion Polymer Battery - 3.7v 150mAh

Product ID: 1317

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 150mAh for a total of about 0.6 Wh. If you need a larger battery, we have a full range of bigger cells The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown...

$5.95

In stock

Top view of Adafruit Micro Lipo - USB LiIon/LiPoly charger - v1 above a 2-pin JST cable.

Adafruit Micro Lipo - USB LiIon/LiPoly charger - v2

Product ID: 1304

Oh so adorable, this is the tiniest little lipo charger, so handy you can keep it any project box! Its also easy to use. Simply plug in the gold plated contacts into any USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs - one red and one green. While charging, the red LED is lit. When...

$5.95

In stock

JST-PH 2-Pin SMT Right Angle Connector

Product ID: 1769

A simple 2-pin connector that is compatible with the "JST PH 2-pin" connector - perfect for soldering to the bottom of our 3.3V Logic Trinket and 5V Logic Trinket! These mate perfectly with all our 1-cell LiPoly and LiIon batteries as well as our 6V coin cell holder and 3xAAA battery pack. We also have simple JST pigtails that mate with this connector. Note: This...

$0.75

In stock

Angled shot of a Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger connected to a solar panel and 3 AAA batteries.

Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger - bq24074

Product ID: 4755

This charger is the only one you need to keep all your Lithium Polymer (LiPoly) or Lithium Ion (LiIon) rechargeable batteries topped up. No matter the power source at your disposal! The Adafruit Universal USB / DC / Solar Lithium Ion/Polymer Charger can use USB, DC or Solar power, with a wide 5-10V input voltage range! The charger chip is super smart, and will reduce...

$14.95

In stock

Angled shot of 9V battery holder clip with 5.5mm/2.1mm plug.

9V battery clip with 5.5mm/2.1mm plug

Product ID: 80

I found these high-quality battery clips. They're molded plastic so they won't tear like cheap clips, and they cover the battery terminals to prevent shorts. Comes with a 5.5mm/2.1mm center-positive barrel connector, assembled! Battery not included.

$2.95

In stock

USB / DC / Solar Lithium Ion/Polymer charger connected to a lithium battery thought a 2-pin JST cable and the solar panel into the DC jack using a 2.1mm adapter cable.

USB / DC / Solar Lithium Ion/Polymer charger - Rev C

Product ID: 390

Make your projects to go green this summer with our specialized USB/Solar Lithium Ion Polymer Battery charger! This charger is a very unique design, perfect for outdoor projects, or DIY iPod chargers. We've spent over a year testing and tinkering with this charger to come up with a plug and play solution to charging batteries with the sun and we're really pleased...

$17.50

In stock

Lithium Ion Battery Pack with three round cells 3.7V 6600mAh with JST PH connector

Lithium Ion Battery Pack - 3.7V 6600mAh

Product ID: 353

Need a massive battery for your project? This lithium-ion pack is made of 3 balanced 2200mAh cells for a total of 6600mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage, and over-current protection. Each cell can provide 0.5C of current (1.1 A per) so all together the peak current you can...

$24.50

In stock

Lithium Ion Polymer Battery 3.7v 350mAh with JST 2-PH connector and short cable

Lithium Ion Polymer Battery with Short Cable - 3.7V 350mAh

Product ID: 4237

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries The batteries come pre-attached with a genuine 2-pin JST-PH...

$5.95

In stock

Adafruit LiIon or LiPoly Charger BFF Add-On for QT Py

Product ID: 5397

Is your QT Py all alone, lacking a friend to travel the wide world with? When you were a kid you may have learned about the "buddy" system, well this product is kinda like that! A board that will watch your QT Py's back and give it the power and support to wander out past your USB port. This little lipo charger is designed to fit onto the back of any QT Py board, and...

$4.95

In stock

Lithium Ion Polymer Battery 3.7v 420mAh with JST 2-PH connector and short cable

Lithium Ion Polymer Battery with Short Cable - 3.7V 420mAh

Product ID: 4236

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 420mAh for a total of about 1.55 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries The batteries come pre-attached with a genuine 2-pin JST-PH...

$6.95

In stock

Single CR2032 Battery Holder with Three Flashing Modes

Product ID: 4891

This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds one 20mm coin cell (CR2032 is the most popular size) to generate 3V nominal. 20mm coin cells are popular as they are used in keychain lights and remotes and other small topys, so they are easy to get and fairly low cost. And speaking of lights, these battery holder includes...

$1.50

In stock

4 x AA Battery Holder with On/Off Switch

Product ID: 830

Make a nice portable power pack with this 4 x AA battery holder. It fits any alkaline or rechargeable AA batteries in series. There's a snap on cover and an on/off switch which can be handy when wiring to something without a switch. New! We now have 0.1" headers on ends of these cables so you can plug them into a breadboard or headers with ease! Of course, you can...

$2.95

In stock

Adafruit LiIon/LiPoly Backpack soldered onto a Pro Trinket, plugged into a solderless breadboard.

Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy

Product ID: 2124

If you have an ItsyBitsy or Pro Trinket you probably know it's the perfect little size for a portable project. This LiPoly backpack makes it really easy to do! Instead of wiring 2 or 3 boards together to make a charging system, this little PCB sits on top of the PCB and allows a LiPoly/LiIon battery to plug in. When the Pro Trinket or ItsyBitsy USB port is powered,...

$4.95

In stock

Angled shot of blue rectangular lithium polymer battery with 2-pin JST connector.

Lithium Ion Polymer Battery - 3.7V 10050mAh (10 Ah)

Product ID: 5035

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 10,050mAh (a.k.a 10 Ah) for a total of about 37 Wh. If you don't need as much power, we also have several mAh variations of LiPos. This pack uses higher-density 18650 cells for a...

$29.95

51 in stock

USB LiIon/LiPoly charger - v1.2

Product ID: 259

This is a Lithium Ion and Lithium Polymer battery charger based on the MCP73833. It uses a USB mini-B for connection to any computer or 'USB wall adapter'. Charging is performed in three stages: first a preconditioning charge, then a constant-current fast charge and finally a constant-voltage trickle charge to keep the battery topped-up. The fast-charge current is...

$12.50

70 in stock

Angled shot of black 9V battery holder with on-off switch and 5.5mm/2.1mm plug.

9V battery holder with switch & 5.5mm/2.1mm plug

Product ID: 67

This is a 9V battery pack with on/off switch and a pre-attached 5.5mm/2.1mm center-positive barrel plug. Use this to battery-power your Arduino (or other electronic projects) - it's ready to go out of the box! Battery & screw not included.

$3.95

In stock

JST-PH 2-Pin SMT Right Angle Breakout Board

Product ID: 1862

A simple 2-pin connector soldered onto a breadboard-friendly breakout. This is compatible with the "JST PH 2-pin" connector. Mates perfectly with all our 1-cell LiPoly and LiIon batteries as well as our 6V coin cell holder and 3xAAA battery pack. We also have simple JST pigtails that mate with this connector.

$1.50

In stock

Angled shot of 2 x AA battery holder with jumper header wires.

2 x AA Battery Holder with Premium Jumper Header Wires

Product ID: 3858

We've got battery holders for all sorts of needs and projects! Waterproof? Here ya go. With an on/off switch? Easy peasy. Here's our latest addition in classy Adafruit black: 2 x AA Battery Holder with Premium Header Wires. What's so special about 'em? Well you can plug them right into a breadboard! No need to fight with those skinny stripped wires you normally get....

$1.95

In stock

Top view shot of JST 2-pin Extension Cable with On/Off Switch.

JST 2-pin Extension Cable with On/Off Switch - JST PH2

Product ID: 3064

By popular request - we now have a way you can turn on-and-off Lithium Polymer batteries without unplugging them. This PH2 Female/Male JST 2-pin Extension Cable comes with an in-line Switch - click once to turn on, click again to turn off. It's super handy especially in tandem with our JST-terminated battery packs or LiIon & LiPoly batteries/accessories/chargers!...

$2.95

In stock

Top-down shot of Adafruit Mini Lipo w/Mini-B USB Jack - USB LiIon/LiPoly charger connected to a battery.

Adafruit Mini Lipo w/Mini-B USB Jack - USB LiIon/LiPoly charger - v1

Product ID: 1905

Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any MiniUSB cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs - one red and one green. While charging, the red LED is lit....

$6.95

In stock

Short USB Extender Cable with Switch in center

USB Cable with Switch

Product ID: 1620

Add a power switch to any USB-powered project simply by plugging this between the USB power port and the USB cable. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects. Comes with a USB A socket on one end and a USB A plug on the other. In between is an in-line switch that is rated for 2 Amps. The data...

$2.95

In stock

6 x AA battery holder with 5.5mm/2.1mm plug

Product ID: 248

Make a portable power brick with plenty of juice! Use Alkaline AA's for a 9V 3000-4000mAh power supply, or rechargeable NiMH for 2000mAh 7.5V supply. Either one is good for running electronics that have a 5V voltage regulator (thus requiring a 7V+ supply). Will last about 10 times longer than a 9V Plug is 5.5mm outer diameter, 2.1mm inner diameter, center positive....

$2.50

In stock

Shot of a coiled USB to 2.1mm Male Barrel Jack Cable.

USB to 2.1mm Male Barrel Jack Cable - 22AWG & 1 meter

Product ID: 2697

There's two standard ways to power electronics - USB or 5.5mm/2.1mm DC barrel jack. This or that! With this USB to 2.1mm Male Barrel Jack Cable, you can now power 5V DC powered electronics that have a DC jack from a USB jack with a handy 1 meter long cable. Simply plug the USB A side to any computer, PowerBoost, USB wall adapter, or even a USB battery pack. Other...

$2.75

In stock

Angled shot of 4 x AA battery holder with jumper wires. Four AA batteries are installed.

4 x AA Battery Holder with Premium Jumper Header Wires

Product ID: 3859

We've got battery holders for all sorts of needs and projects! Waterproof? Here ya go. With an on/off switch? Easy peasy. Here's our latest addition in classy Adafruit black: 4 x AA Battery Holder with Premium Header Wires. What's so special about 'em? Well you can plug them right into a breadboard! No need to fight with those skinny stripped wires you normally get....

$2.95

In stock

Sewable CR2032 Battery Holder

Product ID: 653

This battery holder is by far the easiest way to add a battery to a small wearable project. By coincidence, there are two small 1mm diameter holes in the metal connection tabs, just large enough for a #5 or smaller needle to pass through. One tab connects to common ground (negative) and the other tab is +3 Volts. This holder is meant to be used with Lithium CR2032...

$1.95

In stock

2 x AA Battery Holder with Knife Switch

Product ID: 3951

We've got battery holders for all sorts of needs and projects! Waterproof? Here ya go. With a clicky on/off switch? Easy peasy. Here's our latest addition in classy Adafruit black: 2 x AA Battery Holder with Knife Switch. What's so special about 'em? Well with the knife switch you can easily control the flow of electricity to your project. While there are many...

$0.95

In stock

5 x AA Battery Holder with 2.1mm DC Jack

Product ID: 3456

Here's yet another addition to our family of AA battery holders. It's a holder for five (5) AA batteries, with 5" wire leads. It's black and has a 2.1mm barrel plug (tip positive). 5 x AA battery packs are best used with Arduino-compatibles and other dev boards with 2.1mm DC jacks and a 5V regulator, because 5V regulators tend to like 1-2V of overhead. 4 x AA battery...

$3.95

54 in stock

Switched JST-PH 2-Pin SMT Right Angle Breakout Board

Product ID: 1863

This switched JST connector is the best way to quickly prototype with our LiPoly batteries. We paired a genuine JST connector with a slide switch that can do up to 600mA. Both are soldered onto a breadboard-friendly breakout. There's two ground pins, one 'switched' power pin, and one pin that is always on. This is compatible with the "JST PH 2-pin" connectors we use...

$2.50

In stock

Angled shot of 2 Alkaline AAA batteries.

Alkaline AAA batteries - 2 pack

Product ID: 617

Battery power for your portable project! These batteries are good quality at a good price, and work fantastic with any of the kits or projects in the shop that use AAA's. This is a pack of 2 AAA batteries. These batteries are Alkaline (MnO2) chemistry, with a voltage range of 1.6V (fresh) to 0.8V (dead). The mAh capacity depends on discharge usage but at 25mA rate it...

$0.95

In stock

Angled shot of white rectangular USB battery pack with 4 dotted lights indicating battery is fully charged.

USB Battery Pack for Raspberry Pi - 10000mAh - 2 x 5V outputs

Product ID: 1566

A large-sized rechargeable battery pack for your Raspberry Pi (or Arduino, or Propeller, or anything else that uses 5V!). This pack is intended for providing a lot of power to an GPS, cell phone, tablet, etc but we found it does a really good job of powering other miniature computers and micro-controllers. If you want something a little smaller, we have a 5000mAh...

$39.95

In stock

Angled shot of black 3 x AA waterproof battery holder with plain wires.

Waterproof 3xAA Battery Holder with On/Off Switch

Product ID: 771

Keep your power source safe and toasty in these waterproof 3xAA battery holders. They're just like classic switched battery holders, but designed for survival! The case has a rubber gasket around the edge of the case (its black and hard to see in the photos but it is there) and attaches together with 4 machine screws. What we like about this design is that the...

$3.95

In stock

Angled shot of 2 x CR2032 Coin Cell Battery Box with one-off switch and plain wires. The lid is removed, and two coin cell batteries are installed.

2 x CR2032 Coin Cell Battery Box w/ On-Off Switch & Plain Wires

Product ID: 4988

This adorable little coin cell battery holder is great for small, portable, or wearable projects. It holds two 20mm coin cell batteries (also known as CR2032) in series to generate 6V nominal. 20mm coin cells are popular as they are used in keychain lights and remotes, so they are easy to get and fairly low-cost. They tend to have about 220mAh capacity. The housing...

$1.50

In stock

Angled shot of a 20mm Coin Cell Breakout Board

20mm Coin Cell Breakout Board (CR2032)

Product ID: 1870

Simple but effective - this sewable breakout board has a CR2032 coin cell battery holder soldered on and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. Comes with one fully assembled and tested coin cell battery holder and a small stick of 0.1" header so...

$2.50

In stock

3 x AA Battery Holder with 2.1mm Plug

Product ID: 3842

Here's another addition to our growing family of AA battery holders. A holder for three (3) AA batteries! It's got an 8" long power cable with a 2.1mm DC jack at the end, and, oh yes, it's in classy Adafruit black. This battery holder connects 3 AA batteries together for powering all kinds of projects. Three AA's add up to about 3.6-4.5V, a very similar range to...

$2.95

In stock

Alkaline AAA batteries - 3 pack

Product ID: 3520

Battery power for your portable project! These batteries are good quality at a good price, and work fantastic with any of the kits or projects in the shop that use AAA's. This is a pack of 3 AAA batteries. These batteries are Alkaline (MnO2) chemistry, with a voltage range of 1.6V (fresh) to 0.8V (dead). The mAh capacity depends on discharge usage but at 25mA rate it...

$1.50

In stock

USB Cable with Type A and Micro B ends and switch in center

USB Power Only Cable with Switch - A/MicroB

Product ID: 2379

ON...off...ON...off...ON...off...ON...off...WE CAN'T STOP CLICKING THIS ON-OFF SWITCH! It has such a satisfying click and it works so well. Plus, it's just about perfect for charging your Raspberry Pi - either Model B, A+, B+, or Pi 2. Just hook up the standard USB end to a 5V 1A USB port power supply or 5V 2A USB port power supply and the Micro B end to a Raspberry...

$5.95

In stock

Angled shot of 2x2 AA battery holder with jumper wires.

2x2 AA Battery Holder with Premium Jumper Header Wires

Product ID: 3905

We've got battery holders for all sorts of needs and projects! Waterproof? Here ya go. With an on/off switch? Easy peasy. Here's our latest addition: 2x2 AA Battery Holder with Premium Header Wires. What's so special about 'em? Well besides being a nice compact cubic shape, you can plug the wires right into a breadboard! No need to fight with those skinny stripped...

$2.95

79 in stock

Alkaline 9V Battery

Product ID: 1321

Battery power for your portable project! These batteries are high quality at a good price and work fantastic with any of the kits or projects in the shop that use 9V. These batteries are Alkaline (MnO2) chemistry, with a voltage range of 9.6V (fresh) to 4.8V (dead). The mAh capacity depends on discharge usage but at 50mA rate it is about 500mAh (check the datasheet...

$1.50

55 in stock

USB Li-Ion Power Bank with 2 x 5V Outputs @ 2.1A - 5000mAh

Product ID: 4288

Here's a hand-held-size rechargeable battery pack for your Raspberry Pi (or Metro, or anything else that uses 5V!). This pack is intended for providing a lot of power to a smartphone, tablet, etc, but we found it does a really good job of powering other miniature computers and micro-controllers. If you want even more power, we have a 10,000mAh power pack with two USB...

$26.95

In stock

Alkaline AA batteries (LR6) - 3 pack

Product ID: 3521

Battery power for your portable project! These batteries are good quality at a good price, and work fantastic with any of the kits or projects in the shop that use AAs. This is a pack of 3 AA batteries. These batteries are Alkaline (MnO2) chemistry, with a voltage range of 1.6V (fresh) to 0.8V (dead). The mAh capacity depends on discharge usage but for AA alkaline...

$2.25

In stock

mini battery meter hooked up to a li-poly battery. The display on the battery meter reads three out of four blue tiers.

Single Li-Ion and LiPoly Battery Power Meter

Product ID: 5383

This small, palm-sized battery power meter has a small display that shows off how much juice is left in your single Lithium Ion/Polymer rechargeable battery. The color display has four levels of power indication once battery capacity becomes 100%, 75%, 50%, and 25%. When power is below 25%, only the red battery frame lights up. The design is pretty basic, it's just...

$2.95

83 in stock

12mm Coin Cell Breakout Board

Product ID: 1868

Simple but effective - this breakout board has a CR1220 coin cell battery holder soldered on and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. Comes with one fully assembled and tested coin cell battery holder and a small stick of 0.1" header so you can...

$1.95

In stock

8 x AA battery holder

Product ID: 449

When you need a portable 12V power pack, this big holder will do the job! The holder will store 8 AA batteries end to end, to give approximately 12VDC output with up to 2 amp peak current draw. We like this configuration in particular because it holds the batteries securely, even if being bumped/moved around. This would make a good power source for EL panels, 12V...

$2.95

67 in stock

Angled shot of rectangular black waterproof 2 x AA battery holder with screws, plain wires, and on-off switch.

Waterproof 2xAA Battery Holder with On/Off Switch

Product ID: 770

Keep your power source safe and toasty in these waterproof 2xAA battery holders. They're just like classic switched battery holders, but designed for survival! The case has a rubber gasket around the edge of the case (its black and hard to see in the photos but it is there) and attaches together with 4 machine screws. What we like about this design is that the...

$3.95

In stock

Alkaline AA batteries (LR6) - 4 pack

Product ID: 3349

Battery power for your portable project! These batteries are good quality at a good price, and work fantastic with any of the kits or projects in the shop that use AAs. This is a pack of 4 AA batteries. These batteries are Alkaline (MnO2) chemistry, with a voltage range of 1.6V (fresh) to 0.8V (dead). The mAh capacity depends on discharge usage but for AA alkaline...

$2.95

In stock

Angled shot of a 12mm Coin Cell Breakout Board with On-Off Switch.

12mm Coin Cell Breakout w/ On-Off Switch

Product ID: 1867

Simple but effective - this breakout board has a CR1220 coin cell battery holder soldered on, an on/off switch and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. There's two ground pins, one 'switched' power pin, and one pin that is always on. Comes with...

$2.75

93 in stock

CR2016 Lithium Coin Cell Battery

Product ID: 2849

This is a handy little non-rechargeable CR2016 Lithium Coin Cell Battery! Sitting at 20mm diameter and is 1.6mm thick it's small but packs a punch with a nominal voltage output of 3V and a capacity of 90mAh. For other drain rates the capacity may be reduced, check the datasheet! Note that these are often "stacked" to make a 6V CR2032-sized pack of batteries.

$0.75

In stock

Angled shot of a Adafruit PowerBoost 500 Shield.

Adafruit PowerBoost 500 Shield - Rechargeable 5V Power Shield

Product ID: 2078

What's a project if it's trapped on your desk? Now you can take your Arduino anywhere you wish with the PowerBoost shield! This stackable shield goes onto your Arduino and provides a slim rechargeable power pack, with a built in battery charger as well as DC/DC booster. Compatible with Arduino Uno, Duemilanove, Mega, Leonardo and Due - basically any...

$19.95

In stock

CR2450 Lithium Coin Cell Battery

Product ID: 2850

This is a super beefy non-rechargeable CR2450 Lithium Coin Cell Battery! Coming in at a 24.5mm diameter and 5mm thickness this battery kicks major butt with a nominal voltage of 3V and a capactiy of 610mAh! For other drain rates the capacity may be reduced, check the datasheet!

$0.75

35 in stock

4 x AA Battery Holder with 2.1mm Plug

Product ID: 3784

Here's another addition to our growing family of AA battery holders. A holder for four (4) AA batteries! It's got an 8" long power cable with a 2.1mm DC jack at the end, and, oh yes, it's in classy Adafruit black. 4 x AA battery packs are best used with development boards with 2.1mm DC jacks and can run with ~4.8V (4 x NiMH) to ~6V (4 x Alkaline). Great for powering...

$2.95

In stock

Angled shot of camcorder battery holder/adapter with DC jack.

Camcorder Battery Holder/Adapter for Sony NP-F750 w/ DC Jack

Product ID: 2089

This is an interesting kind of battery holder, usually you'll see ones that are designed for holding like AAA's or something. This battery holder is designed to clip into and hold camcorder batteries. Specifically, the common SONY NP-Fxx series of batteries and compatibles, made with cylindrical LiIon cells and 7.4v nominal output. By clipping a battery in, you can...

$14.95

In stock

Angled shot of a Camcorder Battery Holder.

Camcorder Battery Holder for Panasonic CGR-D28 and CGA-D54s

Product ID: 2272

This is an interesting kind of battery holder, usually you'll see ones that are designed for holding like AAA's or something. This battery holder is designed to clip into and hold camcorder batteries. Specifically, the Panasonic CGR-D28 (7.4V, 3300mAh) and CGA-D54s (7.2V, 5400mAh) Lithium-Ion Battery Packs. We also have a holder for the SONY NP-Fxx series and Canon...

$14.95

7 in stock

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C

Product ID: 2465

PowerBoost 1000C is the perfect power supply for your portable project! With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V...

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$19.95

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Lithium Ion Polymer Battery - 3.7v 500mAh

Product ID: 1578

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 500mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries. The batteries come pre-attached with a 2-pin JST-PH...

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$7.95

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Slim Lithium Ion Polymer Battery 3.7v 400mAh with JST 2-PH connector and short cable

Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

Product ID: 3898

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 400mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries. The batteries come pre-attached with a genuine 2-pin 25mm...

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$6.95

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Lithium Ion Cylindrical Battery - 3.7v 2200mAh

Product ID: 1781

Need a big battery for your project? This lithium-ion battery contains a 2200mAh and a protection circuit that provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases. This cell can provide 2C of peak current (4400mA). Note that these batteries are not designed to sustain such high loads, we suggest...

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$9.95

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Lithium Ion Polymer Battery 3.7v 2000mAh with JST 2-PH connector

Lithium Ion Battery - 3.7V 2000mAh

Product ID: 2011

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2000mAh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and...

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$12.50

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CR1220 12mm Diameter - 3V Lithium Coin Cell Battery - CR1220

Product ID: 380

These are the highest quality & capacity batteries, the same as shipped with the iCufflinks, iNecklace, Datalogging and GPS Shields, GPS HAT, etc. One battery per order (you'll want one battery per cufflink or pendant.) Brand may vary but all battery brands are verified to have the same nominal voltage of 3.0V and nominal capacity of 40mAh

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$0.95

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Lithium Ion Polymer Battery - 3.7v 1200mAh

Product ID: 258

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 1200mAh for a total of about 4.5 Wh. If you need a larger battery, we also have a 2500mAh+ model The batteries come pre-attached with a 2-pin JST-PH connector as shown and include...

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$9.95

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Lithium Ion Battery Pack with two round cells 3.7V 4400mAh with JST PH connector

Lithium Ion Battery Pack - 3.7V 4400mAh

Product ID: 354

Need a big battery for your project? This lithium-ion pack is made of 2 balanced 2200mAh cells for a total of 4400mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage, and over-current protection. Each cell can provide 1A of current for about 4 hours so all together the peak current you can...

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$19.95

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CR2032 Lithium Coin Cell Battery

Product ID: 654

A perfect match for our sew-able coin cell holder. This non-rechargeable coin cell is CR2032 sized: 20mm diameter, 3.2mm thick. It has a nominal voltage output of 3V (although it starts a little high at 3.2V and slowly drifts down to 2.5V as it is used. The capacity is 220mAh assuming a draw of constant .2mA. For other drain rates the capacity may be reduced, check...

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$0.95

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Angled shot of a 20mm Coin Cell Breakout Board w/ On-Off Switch.

20mm Coin Cell Breakout w/On-Off Switch (CR2032)

Product ID: 1871

Simple but effective - this sewable breakout board has a CR2032 coin cell battery holder soldered on, an on/off switch and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. There's two ground pins, one 'switched' power pin, and one pin that is always on....

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$3.50

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Angled shot of a rectangular lipo battery with a 2-pin JST connector. The battery specs are listed on the body: 3.7V 250mAh.

Lithium Ion Polymer Battery - 3.7V 350mAh

Product ID: 2750

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries. The batteries come pre-attached with a 2-pin JST-PH...

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$6.95

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Angled shot of a blue long rectangular USB battery pack.

USB Battery Pack - 2200 mAh Capacity - 5V 1A Output

Product ID: 1959

A smaller-sized rechargeable battery pack for your Raspberry Pi or Raspberry Pi B+ (or Arduino, or Propeller, or anything else that works with 5V!). This pack is intended for providing power to an iPhone, cell phone, tablet, etc but we found it does a really good job of powering other miniature computers and micro-controllers. If you want more power we have a 4400mAh...

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$14.95

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Top-down of 10 LR44 / AG13 1.5V Button Cell Batteries.

LR44 / AG13 1.5V Button Cell Batteries (10-pack)

Product ID: 4645

These batteries are super popular in small electronic objects - and now you don't have to toss it out when the battery dies. This product comes with a ten pack of non-rechargeable LR44 button cell batteries. Each battery is 11.5mm diameter and 5.3mm thick. One battery has a nominal voltage output of 1.5V and a capacity of ‎120 mAh. Handy and adorable, but they...

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$2.95

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Lithium Ion Coin Cell Charger

Product ID: 1573

This is a special-purpose charger just for the rechargeable LIR2450 Lithium Ion coin cells. Slide the coin cell in the right way, and plug into any USB port to recharge - so easy! Takes about 3 hours to charge up, when its done, the green DONE LED will light up to let you know. Rechargeable coin cell is not included, but we have 'em in the shop here Charging is...

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Angled shot of a silver rectangular USB battery pack.

USB Battery Pack for Raspberry Pi - 3300mAh - 5V @ 1A and 500mA

Product ID: 962

A massive rechargeable battery pack for your Raspberry Pi (or Arduino, or Propeller, or anything else that uses 5V!). This pack is intended for providing a lot of power to an iPhone, cell phone, tablet, etc but we found it does a really good job of powering other miniature computers and micro-controllers. Inside is a 3300mAh lithium polymer battery, a charging...

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Angle of large Li-Ion rechargeable coin battery

Lithium Ion Rechargable Coin Cell Battery - LIR2450

Product ID: 1572

You can swap a coin-cell powered design that uses one-use Lithium 2450 cells for this rechargeable cell. This battery is like a little Lithium Ion battery, but in coin cell shape. It doesn't have a huge capacity, only about 120mAh, compared to the 600mAh common to primary non-rechargeable cells. There are a few things to watch out for when using these batteries:...

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Top view of USB/DC Lithium Polymer battery charger above a 2-pin JST cable.

USB/DC Lithium Polymer battery charger 5-12V - 3.7/4.2v cells

Product ID: 280

Charge your single-cell lithium ion/polymer battery any which way you like with this board. Have a USB connection? No problem, just plug into the miniUSB connector. Only have a wall adapter? Any standard 2.1mm DC adapter which puts out 5 to 12VDC will work fine. If both are plugged in, the charger will automatically choose whichever has the highest voltage. Other...

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USB Battery Pack for Raspberry Pi - 5000mAh - 5V @ 2.1A

Product ID: 1565

Discontinued - You can grab USB Battery Pack for Raspberry Pi - 10000mAh - 2 x 5V outputs instead! A medium-sized rechargeable battery pack for your Raspberry Pi (or Arduino, or Propeller, or anything else that uses 5V!). This pack is intended for providing a lot of power to an iPhone, cell phone, tablet, miniature/single-board computers and micro-controllers. If you...

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Angled shot of Top-down shot of camcorder battery holder for Canon LP-56.

Camcorder Battery Holder for Canon LP-E6

Product ID: 2271

This is an interesting kind of battery holder, usually you'll see ones that are designed for holding like AAA's or something. This battery holder is designed to clip into and hold camcorder batteries. Specifically, the common Canon LP-E6 rechargeable Lithium-Ion Battery Pack (7.2V, 1800mAh). We also have a holder for the SONY NP-Fxx series and Pansonic...

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