Lithium Ion Battery - 1Ah

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 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

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


Customer Comments

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

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

  • Are these batteries listed to UL 1642?

  • 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.

    • This might be late but I have done research fairly recently on this topic. I would recommend reading this: https://electronics.stackexchange.com/questions/126673/charging-li-ion-batteries-in-parallel.

      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! :)

    • 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 5 ratings:

Currently viewing all customer reviews.

1 of 1 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.