×

Hello! We just wanted to remind you that The United States Postal Service is closed today for Presidents Day. Any orders placed using USPS will not ship until tomorrow, February 20th. Have a great day!

Lithium Ion Battery - 2Ah

added to your shopping cart

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 2000mAh! 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.

  • Excellent long-term self-discharge rates (<8% per month)
  • Robust power source under extreme conditions (-25 to 60C)
  • Dimensions: 5.6mm x 49.2mm x 68.8mm
  • Weight: 36g (1.27oz)

Lithium Ion Battery - 2Ah Product Help and Resources

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.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
See all skill levels


Customer Comments

  • Can these batteries be connected in series to provide 7.4v with 2000mAH?

  • I was wondering why this battery replaced this one: https://www.sparkfun.com/products/retired/8483. The other battery had great reviews, what is different about this battery to justify a new product number and page? They appear to be almost identical.

    • Mostly we got them for a more reliable supplier with better documentation. They should be pretty much identical, just with more documentation.

      • They are not identical. The old one was roughly 53mm x 62mm and this one is 50mm x 70mm, and will no longer fit for my project :(

        • I agree, they are not dimensionally equivalent. The added thickness doesn’t fit in my enclosure. I’ve purchased >300 of these and now have to find a different source. Bummer, because better documentation is nearly useless.

  • Is there any data on the parasitic losses from the on-board circuitry? I am sourcing batteries for a outdoor solar-recharged project with limited solar capacity so every point of loss is very important.

  • What is the maximum current draw?

Customer Reviews

No reviews yet.