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

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

Description: This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box...
$1.95

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5v USB Battery Booster / Charger

5v USB Battery Booster / Charger

This is the guts of what you will find inside a small USB battery pack. Popular as a recharge source for your devices on the go. Attach a 3.7V Lipo...
$7.95

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

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

Description: If you have an ItsyBitsy or Pro Trinket you probably know it's the perfect little size for a portable project. This LiPoly backpack...
$5.95

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Adafruit Micro Lipo - USB LiIon/LiPoly charger - v1

Adafruit Micro Lipo - USB LiIon/LiPoly charger - v1

Description: 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...
$6.25

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

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

Description: 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!...
$7.25

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

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

Description: 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!...
$7.95

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Adafruit MiniBoost 5V @ 100mA Charge Pump - AP3602A

Adafruit MiniBoost 5V @ 100mA Charge Pump - AP3602A

Description: This adorable little board will come in very handy whenever you need a small amount of 5V power. It's the size of a linear regulator,...
$2.95

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Adjustable breadboard power supply - v1.2

Adjustable breadboard power supply - v1.2

This project details the design of a very low dropout adjustable power supply. A good power supply is essential to electronic projects. While there...
$15.00

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Coin Cell Holder - 24.5 mm

Coin Cell Holder - 24.5 mm

Description: Through hole 24.5 mm coin cell holder. This holder fits our rechargeable 24.5mm Lithium Ion coin cell battery. Holds battery in place...
$0.95

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LilyPad Arduino SimpleSnap

LilyPad Arduino SimpleSnap

Description: The LilyPad SimpleSnap is a new, easy way to create e-textiles projects with LilyPad that are modular and can be disassembled or broken...
$33.95

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Lithium Ion Battery - 1Ah

Lithium Ion Battery - 1Ah

Description: These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1000mAh! Comes...
$9.95

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Lithium Ion Battery - 6Ah

Lithium Ion Battery - 6Ah

Description: If you need some juice, this 6Ah Lithium Ion Battery is for you. These are very compact batteries based on Lithium Ion chemistry. This...
$29.95

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Lithium Ion Battery Pack - 3.7V 4400mAh

Lithium Ion Battery Pack - 3.7V 4400mAh

DESCRIPTION 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...
$19.95

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Lithium Ion Battery Pack - 3.7V 6600mAh

Lithium Ion Battery Pack - 3.7V 6600mAh

DESCRIPTION: 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...
$29.95

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Lithium Ion Cylindrical Battery 3.7v 2200mAh

Lithium Ion Cylindrical Battery 3.7v 2200mAh

Description: Need a big battery for your project? This lithium ion battery contains a 2200mAh and a protection circuit that provides over-voltage,...
$9.95

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Lithium Ion Polymer Battery - 3.7v 100mAh

Lithium Ion Polymer Battery - 3.7v 100mAh

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...
$5.95

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Lithium Ion Polymer Battery - 3.7v 150mAh

Lithium Ion Polymer Battery - 3.7v 150mAh

Description: Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when...
$6.59

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Lithium Ion Polymer Battery - 3.7v 2500mAh

Lithium Ion Polymer Battery - 3.7v 2500mAh

Description Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when...
$14.95  $10.95
Save: 27% off


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MyoWare LED Shield

MyoWare LED Shield

Description The MyoWare LED Shield is designed to pair with the MyoWare Muscle Sensor. The blue 10-segment bar graph shows the magnitude of the...
$24.95

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Polymer Lithium Ion Batteries - 1000mAh

Polymer Lithium Ion Batteries - 1000mAh

Description: Extremely light weight battery based on the Polymer Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1000mAh! Comes terminated...
$11.95

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Polymer Lithium Ion Batteries - 110mAh

Polymer Lithium Ion Batteries - 110mAh

Description: This is a very small, extremely light weight batty based on the new Polymer Lithium Ion chemistry. This is the highest energy density...
$6.95

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Polymer Lithium Ion Batteries - 2000mAh

Polymer Lithium Ion Batteries - 2000mAh

Description: These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density...
$16.95

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Polymer Lithium Ion Batteries - 850mAh

Polymer Lithium Ion Batteries - 850mAh

Description: These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density...
$8.95

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Polymer Lithium Ion Battery - 40mAh

Polymer Lithium Ion Battery - 40mAh

Description: This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density...
$3.95

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Polymer Lithium Ion Battery - 6Ah

Polymer Lithium Ion Battery - 6Ah

Description: If you need some juice, this 6Ahr triple pack is for you. These are very slim, extremely light weight batteries based on the new Polymer...
$32.95

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

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

Description: PowerBoost 500C is the perfect power supply for your portable project! With a built-in battery charger circuit, you'll be able to keep...
$14.95

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Replaced - Polymer Lithium Ion Batteries - 1000mAh

Replaced - Polymer Lithium Ion Batteries - 1000mAh

This part has been replaced by this 1000mah battery. Description: These are very slim, extremely light weight batteries based on the new Polymer...
$11.95

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Replaced - Sunny Buddy - MPPT Solar Charger

Replaced - Sunny Buddy - MPPT Solar Charger

Description: This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger...
$24.95

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Retired - LilyPad LiPower

Retired - LilyPad LiPower

Description: A small, but very mighty power supply. This board was designed to be as small and inconspicuous as possible. The nice thing about...
$14.95

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Retired - LilyPad Power Supply

Retired - LilyPad Power Supply

Description: A small, but mighty power supply. This board was designed to be as small and inconspicuous as possible. Pop in a AAA battery, flip the...
$14.95

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Retired - LilyPad Power Supply

Retired - LilyPad Power Supply

Retired: This product has been replaced by the a newer version. This page is for your reference only. Description: A small, but mighty power supply....
$14.95

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Retired - LiPoly Charger - Single Cell 3.7-7V Input

Retired - LiPoly Charger - Single Cell 3.7-7V Input

Description: This is a Polymer Lithium Ion battery charger based on the MAX1555 IC. This charger uses either USB bus power (MAX1555 internally limits...
$16.95

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Retired - Mini Spy Camera with Trigger for Photo or Video

Retired - Mini Spy Camera with Trigger for Photo or Video

DESCRIPTION: Is your house haunted? Or, rather, are you convinced that your house is haunted but have never been able to prove it since you've never...
$12.95

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Retired - Polymer Lithium Ion Batteries - 20mAh

Retired - Polymer Lithium Ion Batteries - 20mAh

Retired: This product is no longer available. This page is for your reference only. Description: This is an extremely tiny and light weight battery...
$5.95

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Retired - USB Battery Pack - 1800 mAh

Retired - USB Battery Pack - 1800 mAh

Description: Power on the go? Why didn't you ask? We've got plenty! These portable, rechargeable lithium-polymer battery packs are simple, compact...
$19.95

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SparkFun LiPo Charger/Booster - 5V/1A

SparkFun LiPo Charger/Booster - 5V/1A

Description The SparkFun 5V/1A LiPo Charger/Booster is a no-nonsense circuit for generating one amp from a Lithium Polymer battery at 5V. This LiPo...
$17.50

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SparkFun LiPower Shield

SparkFun LiPower Shield

Description: Is there anything an Arduino can’t do? Well, for one, most of them can’t be powered directly from a 3.7V LiPo battery; much less...
$29.95  $20.97
Save: 30% off


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SparkFun Wireless Joystick Kit

SparkFun Wireless Joystick Kit

Description: The SparkFun Wireless Joystick Kit provides an easy way to control your next XBee project. Before the wireless joystick,...
$43.95

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USB LiIon/LiPoly charger - v1.2

USB LiIon/LiPoly charger - v1.2

Description: 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...
$12.95

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Adafruit PowerBoost 500 Shield Rechargeable 5V Power Shield

Adafruit PowerBoost 500 Shield Rechargeable 5V Power Shield

Description: 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...
$19.95

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ChronoDot High Precision RTC V2.1

ChronoDot High Precision RTC V2.1

A fresh CR1632 3V lithium battery is included with every purchase. NEW: ChronoDot V2.1 released! The new ChronoDot has been completely reconfigured...
$14.99

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SparkFun Sunny Buddy - MPPT Solar Charger

SparkFun Sunny Buddy - MPPT Solar Charger

Description: This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger...
$24.95

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USB / DC / Solar Lithium Ion/Polymer charger - v2

USB / DC / Solar Lithium Ion/Polymer charger - v2

DESCRIPTION : Make your projects to go green with this specialized USB/Solar Lithium Ion Polymer Battery charger! This charger is a very unique...
$17.50

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Arduino Fio

Arduino Fio

Description: The Arduino Funnel I/O (Fio) is a board designed by Shigeru Kobayashi, based on the original design from LilyPad. Funnel is a toolkit to...
$24.95

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Arduino Pro 328 - 5V/16MHz

Arduino Pro 328 - 5V/16MHz

Description: It's blue! It's skinny! It's the Arduino Pro! SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz...
$19.95

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