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 genuine 2-pin JST-PH connector as shown and include the necessary protection...

Build your own cellular project and get off the grid with FONA. This pack comes with an SMA-antenna type FONA and paired with hand-picked accessories. It's the Adafruit FONA - SMA Starter Pack . The FONA miniGSM is an adorable all-in-one cellular phone module that lets you add voice, text, SMS and data to your project in an adorable little package. This module measures only 1.75"x1.25" but packs a surprising amount of...

Build your own cellular project and get off the grid with FONA. This pack comes with an uFL-antenna type FONA and paired with hand-picked accessories. It's the Adafruit FONA - uFL Starter Pack . The FONA miniGSM is an adorable all-in-one cellular phone module that lets you add voice, text, SMS and data to your project in an adorable little package. This module measures only 1.75"x1.25" but packs a surprising amount of...

Discontinued - you can grab Adafruit FONA 808 Shield - Mini Cellular GSM + GPS for Arduino instead!    Build your own cellular project and get off the grid with FONA. This pack comes with an uFL-antenna type FONA and paired with hand-picked accessories. It's the Adafruit FONA 800 Shield Starter Pack . The FONA 800 Shield, is an adorable all-in-one cellular phone shield that lets you add voice, text, SMS and data to your project...

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 Arduino-pinout-shaped Arduino as only the GND and 5V pins are used. You can stack shields...

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. When the battery is fully charged and ready for use, the green LED turns on....

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 the battery is fully charged and ready for use, the green LED turns on....

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. When the battery is fully charged and ready for use, the green LED turns on....

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. When the battery is fully charged and ready for use, the green LED turns on....

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, the battery is recharged automatically. Unplug the USB port and the...

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 genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a...

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 include the necessary protection circuitry. Because they have a...

From the creative and cat-lovin' engineers at KittenBot comes the Meowbit - a handheld retro gaming computer for coding your own games with MakeCode Arcade and MicroPython. This design is really fun, with a GameBoy-like shape that can plug into micro:bit expansion boards. The built in display is a 160x128 color 1.8" TFT screen with the familiar ST7735 chipset over SPI. You also get 8 buttons (4-way D-Pad, A and B, menu and reset)...

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 include the necessary protection circuitry. Because they have a...

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 nice things about this charger include multiple LEDs for power & charging...

We now have a newer, easier, and cheaper design for solar charging - check out the bq24074-based Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger! It has more input protection and wider voltage range, no need for a large capacitor, USB C, and more. We'll continue stocking this older design for folks who need it. For new Solar charging projects, please use the bq24074 . Make your projects to go green this summer with our...

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 the current draw if the input voltage starts to dip under 4.5V, making it...

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 500mA by default, but is easily adjustable from 100mA up to 1000mA by...

The world's first and only open-source hardware charger: The MintyBoost®! New version! Works with the new iPhone 4 & 5 and more! Please review the Minty Boost project page(s) before purchase and assembly!, some phones require different modifications to the kit to charge properly! Some phones such as the *iPhone 3gs are very sensitive to charging via USB and may not work in all environments or configurations. Make your own...

Light up the winter nights this year with an electronic Snow Globe! This kit provides everything you need to make your very own, no soldering required! You can use MakeCode to program various light and sound effects into the Circuit Playground Express. MakeCode uses easy-to-understand drag and drop programming blocks, so even if you've never programmed before, you'll be rockin' like the Rockettes. Check out the many electronic snow...

A super-specifically-laser-cut enclosure that turns your 8x8 'Trellis into a handheld light/music maker! Perfect for your next cool interface, MIDI instrument, control panel... whatever could benefit from a glow-up with an elegant black and white enclosure and with beautiful diffused colorful buttons. Note: This is only the plastic enclosure and hardware!  To complete this project you'll need also: 1 x Adafruit...

We've upgraded our popular UNTZtrument with a total make-over, and it's been reborn as the NeoTrellis 8x8 Kit pack. This open-source 8x8 Grid Controller Kit with a super-specifically-laser-cut enclosure turns four panels of 4x4 NeoTrellis's into a handheld Feather M4 Express-powered light/music maker! Perfect for your next cool interface, MIDI instrument, control panel... whatever could benefit from a glow-up with an...

A super-specifically-laser-cut enclosure that turns your 4x4 'Trellis into a handheld light/music maker! Perfect for your next cool interface, MIDI instrument, control panel... whatever could benefit from a glow-up with an elegant black and white enclosure and with beautiful diffused colorful buttons. Note: This is only the plastic enclosure and hardware! Looking for the rest of the set up, including the RGB Driver PCB,...

We've upgraded our popular 4x4 Trellis Keypad kit with a super-specifically-laser-cut enclosure that turns your 4x4 'Trellis into a handheld Feather M4 Express-powered light/music maker! Perfect for your next cool interface, MIDI instrument, control panel... whatever could benefit from a glow-up with an elegant black and white enclosure and with beautiful diffused colorful buttons. Thee 4x4 button pad board...

The MyMiniRaceCar Project Pack is a Feather Bluetooth LE mini robot rover – a perfect project for folks who are just getting started in the world of DIY electronics. It's an excellent introduction to our wide world of robotics. Check out John Park's learn guide here! This project contains just about everything you need to make your very own Bluetooth controlled mini-robot, with the added bonus of a temperature...

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 genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they...

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 long JST-PH connector as shown and include the necessary...

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 super-powerful pack, in the same size as our 6600 power pack...

For all those who feared their Game Boy days would be but a memory, worry no more! The Game Boy may be dead, but with this pack you'll have a chance to revive it. We've collected all the right parts so you can assemble the guts of your very own DIY GameGRRL - a portable Raspberry Pi running MAME and NES emulators. This is version 2.0! We've updated this project for the Raspberry Pi 2 or 3 with more buttons (D-Pad,...