Lithium Ion Battery - 1Ah

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1000mAh! Comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium Polymer charger.

Battery includes built-in protection against over voltage, over current, and minimum voltage. Please use caution when using this battery in wearable projects. When using conductive thread, a short in the thread can create sparks and heat. We recommend using coin cell batteries for beginners.

Note: This battery is not available to ship to Alaska or Hawaii, or through any express services (2-day, overnight), or internationally. This is temporary! Check out our blog post for more information. Additionally orders may take longer to process and therefore do not qualify for same-day shipping. Sorry for any inconvenience this may cause!

Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions may be taken.

Weight: 22g (0.77oz)

  • Excellent long-term self-discharge rates (<8% per month)
  • Robust power source under extreme conditions (-25 to 60C)
  • 2.00 x 1.32 x 0.23" (50.8 x 33.5 x 5.9 mm)

Lithium Ion Battery - 1Ah Product Help and Resources

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.

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.

SparkFun 5V/1A LiPo Charger/Booster Hookup Guide

September 28, 2017

This tutorial shows you how to hook up and use the SparkFun 5V/1A LiPo Charger/Booster circuit.

Battery Technologies

February 6, 2013

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

LilyPad Basics: Powering Your Project

September 24, 2018

Learn the options for powering your LilyPad projects, LiPo battery safety and care, and how to calculate and consider power constraints on your projects.

LiPo Charger Plus Hookup Guide

May 30, 2019

This tutorial shows you how to hook up and use the SparkFun LiPo Charger Plus board.

Single Cell LiPo Battery Care

March 16, 2023

This tutorial will go over how to safely charge, connect, disconnect, reinforcing the cables, and handle single cell LiPo batteries.

Adjustable LiPo Charger Hookup Guide

September 28, 2017

The SparkFun Adjustable LiPo Charger is a single-cell lithium polymer (LiPo) and lithium ion battery charger. Because it’s adjustable, this charger will be able to safely charge all of our singe-cell batteries.

LiPo Fuel Gauge (MAX1704X) Hookup Guide

February 23, 2023

Monitor your LiPo battery with the LiPo fuel gauge! In this tutorial, we will be using the MAX17043 and MAX17048 to monitor a single cell, LiPo battery over the Arduino Serial Monitor. We will also connect a display to view the output without the need to connect the microcontroller to a computer.

Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #663474 / about 8 years ago / 4

    What is the maximum charge and discharge current of this battery? It is given in 'C' for LiPo batteries.

  • JetForMe / about 8 years ago / 3

    Can you please post data sheets for the cell and protection circuit? Thanks.

  • Member #741286 / about 5 years ago / 1

    How big is this battery compared to a quarter?

  • Member #76996 / about 6 years ago / 1

    Yes, can you please share more detailed specifications RE "Battery includes built-in protection against over voltage, over current, and minimum voltage." I want to include low voltage shutoff in my next project so I don't destroy batteries, but if the battery already has a minimum voltage cutoff around 3.0 V that would save me a lot of trouble.


  • Member #812752 / about 8 years ago / 1

    Are these batteries listed to UL 1642?

  • Padfoot / about 8 years ago * / 1

    More of a question rather than a comment, but here goes: What would someone recommend, for say, using two or more of these in parallel? I have a sudden interest in battery powered devices, and I know that 1000mah is not going to be enough capacity, but 2200mah would be plenty. Ideally, I want my Sunny Buddy to charge them.

    • NightEule5 / about 7 years ago / 1

      This might be late but I have done research fairly recently on this topic. I would recommend reading this:

      Basically, you can do this only if they are the same batch of cells, same voltage, same capacity, and from a good quality manufacturer (Samsung, Panasonic, LG, etc), among other things.

      I would say probably not with these cells, but maybe.

      But Sparkfun does sell a 2Ah battery and even a 6Ah battery now. So there is probably no need to put these in parallel anyway.

      Hope this helped! :)

    • bobdabiulder / about 7 years ago / 1

      In parallel, I believe batteries such as these exhibit self-balancing properties, such that if one cell's voltage gets too low, the other charges it itself. The is nice and safe. Definitely double check what I said, I'm not 100% sure.

Customer Reviews

5 out of 5

Based on 8 ratings:

Currently viewing all customer reviews.

2 of 2 found this helpful:

Perfect power density for its size

I use a 1000mAh LiPo in each of my solar-powered weather stations. The size is so small that they fit nicely in the 3.5" x 2.5" enclosures that I'm using, yet they provide more than enough power for frequent temp/humidity/barometric pressure readings.

Quality unit!

Nice battery. Doing a great job as a replacement in a Fiio E17 headphone amp. Super service! Only minor point is the high shipping costs to Europe.

Great Battery with Long Life

Used a couple of these batteries in my Game Boy Null builds (retropie emulator). If fit my dimensions perfectly and I get about 2.5 hours of play time (1 battery) with a 2.8" screen. It actually recharges from 0 to 100% fairly quickly which is really nice.

Works well - reliable

I like having the protection circuitry built into the battery. I have used these batteries for a long time. I never had any problems, or any reason to question their advertised capacity.

Excellent Product

This is simply a battery, so I presume this review is more a testament to the excellent service that Sparkfun continually provides. Thanks!