2,976 results for polymer lithium ion battery

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Polymer Lithium Ion Battery - 6Ah

$ 29.95
Polymer Lithium Ion Battery - 1000mAh

$ 9.95

Polymer Lithium Ion Battery - 40mAh

$ 4.5
Polymer Lithium Ion Battery - 110mAh

$ 4.95
Polymer Lithium Ion Battery - 2000mAh

$ 12.95
Polymer Lithium Ion Battery - 400mAh

$ 4.95
Polymer Lithium Ion Battery - 1000mAh 7.4v

$ 9.95
Polymer Lithium Ion Battery - 2200mAh 7.4v

$ 15.95
Polymer Lithium Ion Battery - 18650 Cell (2600mAh)

$ 5.95
Polymer Lithium Ion Battery - 18650 Cell (2600mAh, Solder Tab)

$ 6.5

Li-Ion/Polymer Battery Charger/Balancer - 50W, 5A

$ 32.95
SparkFun Battery Babysitter - LiPo Battery Manager

$ 19.95
9V Li-ion Rechargeable Battery - 350mAh

5.9500 $ 4.76
RFduino - Single AAA Battery Shield

$ 21.95
RFduino - Dual AAA Battery Shield

$ 21.95
RFduino - CR2032 Coin Battery Shield

$ 16.95
SparkFun Block for Intel® Edison - Battery

$ 24.95
LilyPad Coin Cell Battery Holder - Switched - 20mm

$ 3.95
Battery Holder - 18650 (PTH)

$ 0.75
E-Textiles Battery - 110mAh (2C Discharge)

$ 6.95
Coin Cell Battery Holder - 20mm (SMD)

$ 0.95
Coin Cell Battery Holder - 24.5mm (PTH)

$ 0.95
Coin Cell Battery - 24.5mm (Rechargeable CR2450)

$ 2.95
SparkFun Photon Battery Shield

$ 12.95
SparkFun Block for Intel® Edison - Power

$ 18.95
Coin Cell Battery - 20mm (CR2025)

$ 1.95
9V Battery Holder

$ 2.95
Coin Cell Battery - 12mm (CR1225)

$ 1.95
Cubelets - Battery Charger

14.9500 $ 1.95
Coin Cell Battery - 20mm (CR2032)

$ 1.95
EL Inverter - Battery Pack

$ 4.95
Battery Holder - 4xAA Square

$ 1.95
Battery Holder - 1xAAA (PTH)

$ 0.5
Battery Holder - 1xAA (PTH)

$ 0.5
Battery Holder 2xAA with Cover and Switch

$ 1.5
Battery Holder 4xAA with Cover and Switch

$ 1.95
Battery Holder 3xAA with Cover and Switch

$ 1.95
Battery Holder - 1x18650 (wire leads)

$ 1
Battery Holder - 2x18650 (wire leads)

$ 1.5
Battery Holder 2xAAA with Cover and Switch

$ 1.5
2500 mAh NiMH Battery - AA

$ 2.95
Coin Cell Battery Holder - 12mm (PTH)

$ 1.5
Coin Cell Battery Holder - 12mm (SMD)

$ 0.95
Coin Cell Battery Holder - 20mm (Sewable)

$ 1.25
LilyPad Coin Cell Battery Holder - 20mm

$ 3.95


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How Lithium Polymer Batteries are Made

May 28, 2014

We got the opportunity to tour the Great Power Battery factory. Checkout how LiPos are made!

LilyPad Simple Power Hookup Guide

January 15, 2015

A basic guide for getting started using the LilyPad Simple Power.

What is a Battery?

May 3, 2016

An overview of the inner workings of a battery and how it was invented.

The Uncertain 7-Cube

March 8, 2013

The Uncertain 7-Cube is a non-committal, less-than-helpful, but also entirely honest fortune teller. Simply ask it a yes or no question, give it a nudge, and the 7-Cube will dutifully inform you that it doesn’t have all the facts and doesn’t feel comfortable making a guess.

Getting Started with the LilyPad MP3 Player

May 8, 2013

The LilyPad MP3 Player is an amazing little board that contains almost everything you need to play audio files. You can use it to create all kinds of noisy projects, from MP3 hoodies to talking teddy bears. Your imagination is the only limit! This tutorial will help you get started.

Hazardous Gas Monitor

June 17, 2016

Build a portable gas monitor to check for dangerous levels of hazardous gases.

Wake-on-Shake Hookup Guide

March 13, 2015

A basic hookup guide for getting started with the SparkFun Wake-on-Shake.

IoT Industrial Scale

October 10, 2016

What does a baby elephant weigh? How much impact force does a jump have? Answer these questions and more by building your very own IoT industrial scale using the SparkFun OpenScale.

Photon Battery Shield Hookup Guide

July 2, 2015

The Photon Battery Shield has everything your Photon needs to run off, charge, and monitor a LiPo battery. Read through this hookup guide to get started using it.

Battery Babysitter Hookup Guide

June 23, 2016

An introduction and getting started guide for the Battery Babysitter - a flexible LiPo battery charger and monitor.

Photon Remote Temperature Sensor

March 1, 2016

Learn how to build your own Internet-connect, solar-powered temperature collection station using the Photon from Particle.

Uh-Oh Battery Level Indicator Hookup Guide

April 9, 2014

Learn how to assemble and use the Uh-Oh Battery Level Indicator Kit.

Battery Technologies

February 6, 2013

The basics behind the batteries used in portable electronic devices: LiPo, NiMH, coin cells, and alkaline.

Measuring Internal Resistance of Batteries

May 5, 2016

Classroom STEM activity that has students build a battery from a lemon, measure the open and closed circuit voltages, and determine the battery's internal resistance.

Sunny Buddy Solar Charger Hookup Guide

April 11, 2014

How to hookup the Sunny Buddy: a solar-powered, MPPT (peak-power tracking), LiPo battery charger.

Sunny Buddy Solar Charger V13 Hookup Guide

October 13, 2014

How to hookup the Sunny Buddy: a solar-powered, MPPT (peak-power tracking), LiPo battery charger.

E-Textile Art Pin

March 12, 2015

Create a quick and easy piece of e-textile art using a LilyPad LED, battery holder, conductive thread, and coin cell battery.

LTC4150 Coulomb Counter Hookup Guide

September 18, 2014

A "Coulomb Counter" is like a gas gauge for your battery. Here's how to use it.

E-Textile Mask

September 19, 2014

Use LilyPad LEDs, a switched battery holder, and coin cell battery to make a fun light up mask for your next costume party.

LED Robot Pop Up Card

August 19, 2015

Craft a paper circuit pop up card with a cycling RGB LED, battery, and copper tape.

LED Butterfly Pop Up Card

August 19, 2015

Craft an illuminated butterfly pop up card with copper tape, two LEDs, and a battery.

LDK Experiment 1: Lighting Up a Basic Circuit

February 7, 2013

The first experiment in the LilyPad Design Kit series. In this exercise, you will learn how a basic e-textiles circuit works, and light up a sewable LED using a coin cell battery holder and conductive thread.

Simblee LilyPad Hookup Guide

February 4, 2016

The Simblee LilyPad lets you easily integrate Bluetooth Low Energy and mobile apps into your e-textiles projects.

LiPo USB Charger Hookup Guide

May 1, 2014

How to charge your LiPo batteries with the USB LiPo charger. Plus how to modify your charger to set the charge current.

How to Power a Project

February 7, 2013

A tutorial to help figure out the power requirements of your project.

Planning a Wearable Electronics Project

August 13, 2015

Tips and tricks for brainstorming and creating a wearables project.

EL Wire Light-Up Dog Harness

October 30, 2015

Learn how to create a light-up dog harness using EL wire for when you need to take your four-legged friend for a walk in the dark.

Hacking the MiP - Proto Back

December 4, 2014

How to attach the Proto Back and begin Hacking the MiP


June 14, 2013

An introduction to polarity in electronic components. Discover what polarity is, which parts have it, and how to identify it.

Sound Reactive EL Wire Costume

December 31, 2015

Learn how to make your EL wire costumes sound reactive in this project tutorial.

Mini FET Shield Hookup Guide

May 1, 2014

Learn how to hookup and use the FET shield for Arduino Pro Mini 3.3V. With this shield, you can control much larger loads such as motors or large LED strips without straining your Arduino's power.

RedStick Hookup Guide

January 28, 2016

Learn about the SparkFun RedStick, a USB thumb drive-sized Arduino-compatible development platform.

SparkFun Blocks for Intel® Edison - OLED Block

February 13, 2015

A quick overview of the features of the OLED Block for the Edison.

Logomatic Hookup Guide

May 29, 2014

Basic introduction and hook-up guide for the SparkFun Logomatic.

My Drunk Kitchen Apron

September 5, 2013

A fun project that uses the LilyPad MP3 trigger. This apron will dispense helpful kitchen advice and humor from the host of My Drunk Kitchen, Hannah Harto!

SAMD21 Mini/Dev Breakout Hookup Guide

November 12, 2015

An introduction to the Atmel ATSAMD21G18 microprocessor and our Mini and Pro R3 breakout boards. Level up your Arduino-skills with the powerful ARM Cortex M0+ processor.

ProtoSnap LilyPad Development Simple Hookup Guide

September 5, 2013

Interested in getting into LilyPad? Or maybe it's Arduino that tickles your fancy? Just want to add a little white-blinky-LED zest to your vest? All of the above? The ProtoSnap LilyPad Simple is a great tool to explore any of these subjects.

Connector Basics

January 18, 2013

Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.

Arduino Comparison Guide

November 11, 2013

Examining the diverse world of Arduino boards.

Heartbeat Straight Jacket

June 4, 2009

An EL project that displays one person's heartbeat on another person's costume.

Soil moisture-sensing by hacking a solar light

June 19, 2014

How to take a solar powered pathway light from a hardware store and make it into a crude soil moisture sensor.

MG2639 Cellular Shield Hookup Guide

May 7, 2015

Learn how to equip your Arduino with an MG2639 Cell Shield and use it to send SMS or TCP via GPRS.

Pro Micro & Fio V3 Hookup Guide

November 8, 2013

An overview of the Pro Micro, how to install it, and how to use it with Arduino.

Dungeons and Dragons Dice Gauntlet

August 13, 2013

A playful, geeky tutorial for a leather bracer that uses a LilyPad Arduino, LilyPad accelerometer, and seven segment display to roll virtual 4, 6, 8, 10, 12, 20, and 100 side dice for gaming.

Arduino Shields

August 6, 2013

All things Arduino Shields. What they are and how to assemble them.

Photon Remote Water Level Sensor

June 2, 2016

Learn how to build a remote water level sensor for a water storage tank and how to automate a pump based off the readings!

Blynk Board Washer/Dryer Alarm

March 31, 2016

How to configure the Blynk Board and app to notify you when your washer or dryer is done shaking.

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Retrosparktive Part II - Longbow Drive

August 11, 2014 2

SparkFun moves up to a "real building" - business ensues

What's All the Fuss About Lithium Batteries?

February 23, 2015 25

The positives and negatives of shipping lithium batteries in the 21st century.

Battery vs. Water Tank

October 23, 2008 32

How much water does it take to replace a battery?

New Battery Changes

April 4, 2016 21

These electrifying little devices are getting more restricted by the year.

T³: Building a battery backup Pokédex for Pokémon Go!

July 12, 2016 56

Catching 'Em All can drain your smartphone battery; let's see if we can fix it in style!

The Science of Licking a 9V Battery

February 4, 2014 20

Why do we feel a tingle when we lick a 9V battery?

T³: Battery Basics

May 3, 2016 10

A quick look at the science behind how batteries work.

Nuclear Fusion

December 8, 2008 22

Checkout our caliper battery hack and a new class on creating basic schematics.

Meet the Scooterputer

July 7, 2010 24

A Scooter battery meter grows into something a little bit crazier!

Parts and Projects

August 6, 2008 0

A few new items and a few customer project submissions.

Friday Product Post: Fall in Line

October 16, 2015 1

A new robotics board and Arduino shield should help ease you into the weekend!

SparkFun Sale!

June 17, 2010 35

It's time for a sale! Plus, we're announcing a new product section: the Sale Category.

Introducing the Arduino FIO and closing early

March 19, 2010 5

Say "hello" to the Arduino FIO - plus a few other new products!

Welcome to another year of new products!

January 6, 2011 19

It's 2011 and we expect this to be a big year for new products.

Connecting the Dots - Vancouver

March 9, 2010 15

Nate travels through UBC in Vancouver discovering amazing research projects and beautiful art, finishing up with a ride on the Mondo Spider.

The Return to Shenzhen - Part 2

April 13, 2011 65

SparkFun visits various factories and the electronics market in Shenzhen, China.

A look into SparkFun Production - and some new products!

September 26, 2008 11

New LilyPad kits, sensors, perf boards, a crazy package tracker, and various pictures updates. Oh, and Production is moving.

Friday Product Post: Photon Phriday

January 15, 2016 4

It's Inventory Day for us, but don't worry, we still have some new products for you!

Reused parts contest winner!

August 9, 2014 3

Congratulations to our reused parts winner!

New Product Friday: Joints and Mounts

June 22, 2012 26

Now that AVC is done, we have a bunch of new products to talk about.

Communities that Create

November 8, 2010 57

Nathan Seidle tells the story of SparkFun, how we got started and why we do what we do.

Engineering Roundtable - Burning Man Edition

September 10, 2013 19

Engineer Chris went to Burning Man, and needed some solar power for his project. Thus, a Roundtable was born.

Solar Powered Bird Tracking

August 3, 2010 30

A small solar powered bird tracker that weighs only 11 grams!

Enginursday: Designing a FLiR Pi Camera

June 2, 2016 9

Watch and learn: a video about the design process for a mobile camera

New Product Friday: Benjamin Button

August 3, 2012 34

We got a new shipment of stuff for this week that includes some swag, some new Arduino boards, and a couple of revisions.

Enginursday: Playin' with Parylene

October 20, 2016 8

Conformal coatings have always been a big thing in the electronics world, but you rarely see it in the hobbyist/prototyping market. Here's our experience and where it is beneficial to use.

E-Textile Meet-Up

December 10, 2010 10

Lynne Bruning, friend of SparkFun and E-Textile expert, joins us for a guest post.

A Round of New Products for Friday

August 12, 2011 27

We have a round of bright new products for you to take for a spin!

Creating a Pendulum Monitor with the Wolfram Language and the SparkFun Blocks for Intel Edison

December 31, 2014 2

Guest blog post by Arnoud Buzing of Wolfram Research on using the Edison and SparkFun Blocks to make a pendulum monitor.

First Ever Friday New Product Post!

April 1, 2011 62

This is the first ever product post at our new day, Friday.

New Product Friday: Have it your way

March 16, 2012 36

The weekend is almost here, so we're talking about the new products from this week and demonstrating a couple as well.

Building a Wireless Kill Switch

May 31, 2016 11

When things become sentient, it's good to be able to remotely kill power.

Phonetic Search

February 9, 2011 55

A helpful addition to the SparkFun site.

Check out the Lumapad!

March 11, 2013 13

Check out the open source photo light you can control with your phone.

What would you like to see?

August 15, 2008 40

What items would you like to see available down the street? Oh, and some new products posted.

New Product Friday: A Touching Gesture

November 7, 2014 5

A cool new sensor, some revisions, and other great stuff. Check out what's new.

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EdWeek: Making and Measuring Batteries

May 4, 2016

STEM Project: Make and Measure a Battery Learn about batteries with a concept video and tutorial. Then, create a simple battery using a lemon, …

Return Policy

December 1, 2010

We want you to love your new parts and gadgets! Sometimes your project changes or something is not working the way you thought it would. Never fear, we are here to help! 90 day unmodified return poli…

Customer Support

October 11, 2016

Customer Support How to Help Yourself General questions about SparkFun? Check our FAQ for answers! Want to return something you purchased? The Returns Policy is for you! There is community supp…

e-Textile Art Pin

June 11, 2014

Create a quick and easy piece of e-textile art using a LilyPad LED, Battery Holder, conductive thread, and coin cell battery.

LilyPad With No Programming

February 6, 2014

Introductory handout covering sewing with conductive thread and how to avoid short circuits in e-textiles with LilyPad components.

e-Textile Mask Workshop

April 9, 2014

Presentation on sewing circuits and creating a light up mask used during Girl Scout Troop 73265's visit to SparkFun HQ.

Paper Circuits: Light Up Valentine Pop Up Cards

March 27, 2014

Templates and slide presentation used in the Light Up Your Love with Paper Circuitry class on 2/12/14.

Resistance Board

February 6, 2014

A project using e-textiles to show the concept of resistance in an intuitive manner.

Paper Circuits: Lotus Flower Pop Up Card

May 6, 2014

Templates used in the Have Fun with Paper Circuitry workshop at GESTEM on 5/9/14.

Paper Circuit Cards

March 1, 2014

Have students build a simple circuit with copper tape, a coin cell battery, and an LED. This template can be extended to any number of other activities inv

Paper Circuits Pin

March 31, 2014

This quick craft project shows you how to create a circuit using copper tape instead of wire to light up an LED and make a wearable piece of e-craft art.

LilyPad With Programming

February 6, 2014

Get started prototyping without a breadboard using the ProtoSnap LilyPad Development Board to control buzzers, vibration motors, RGB LEDs and more.

NodeBots Day 2016 - SIK for J5

April 12, 2016

Johnny Five Inventor’s Kit(J5IK) The only kit built for Nodebots Day!Fea…

AVC 2016

September 26, 2016

View Photos View Scoreboard View Site Map View Rules View Program Watch a recap of the live stream here! …

ISS National Design Challenge

June 24, 2015

ISS National Design Challenge Have questions? Let me know! mike.grusin@sparkfun.com Welcome CASIS ISS National Design Challenge participants! The following parts may be useful when developing your …

Arduino Buying Guide

January 1, 2012

Arduino Buying Guide Let’s face it, there are a lot of different Arduino boards out there. How do you decide which one you need for your project? With this table, you can not only compare featu…

Accelerometer, Gyro and IMU Buying Guide

September 20, 2016

Accelerometer, Gyro and IMU Buying Guide Accelerometers and gyros are becoming increasingly popular in consumer electronics, so maybe it’s time you added them to your project! Scrolling through…

GPS Buying Guide

January 1, 2012

GPS Buying Guide Above your head, right now, at an altitude of about 20,200 km there is a system of navigation satellites. There’s 35 of them, 24 active at any given time. It cost millions and …

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OBD-II Module Project

TeeKayZed 8 items


This is necessary for base idea. This is the...


Member #462128 152 items

Things needed for testing for the encon badge 2015


patrickclary 2 items

Parts for the 2014 micromouse robot

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