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$ 6.95

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In stock 233 in stock
6.95 1+ units
6.60 25+ units
6.26 100+ units
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Description: This is a very small, extremely lightweight battery based on Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 110mAh but limited to a 2C discharge! 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.

What sets this battery apart from our other 110mAh battery is that fact that it was truly made for e-textiles projects. With no risk to short out and a low current delivery, the E-Textiles Battery will cut off in the range of 240-380mA making this the safest option to power electronics sewn into pieces of fabric.

Battery includes built-in protection against over voltage, over current, and minimum voltage.

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.

Dimensions: 5.7x12x28mm


  • 2C continuous discharge
  • Excellent long-term self-discharge rates (<8% per month)
  • Robust power source under extreme conditions (-25 to 60C)


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Customer Comments

  • Curious what type of “specialized Lithium Polymer Charger” will work. I got 2 of these batteries and couldn’t charge them with a LiPo charger from Adafruit ( Could someone please give some examples of suitable chargers?

  • I bought the SparkFun LiPo Charger Basic - Micro-USB - PRT-10217 - to charge the 110mA battery, but the status light will not go on. When I charge the 400mA LiPo, the status light is on and I presume the battery is charging. Any suggestions on how to charge the 110mA battery? I have the USB/microUSB cable connected to a USB port on my laptop, which tech support said should work.

  • The regular version of this battery doesn’t seem to specify a discharge rate, so it’s hard to compare them.

    • It would not be that surprising to find a 4C or higher discharge rate on the regular ones.

  • Could you give a value to the extreme lightness? I’m considering to use it on a device attached to a bird - weight really does matter for me.

Customer Reviews

4.3 out of 5

Based on 3 ratings:

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Worked great for my project

I powered a golf sweater that included a lilypad arduino, lilypad accelerometer, 5 leds constantly on, and 12 more leds that were powered from time to time (a golf swing meter). The battery did the job for a good portion of the golf outing, longer than I expected. No problems at all (although they’re right you need to use pliers to remove the connector). The lilypad USB makes it simple to charge.

wire break easily

The battery itself is good but the wires break easily

Related Tutorials

Powering LilyPad LED Projects

December 17, 2016

Learn how to calculate how many LEDs your LilyPad project can power and how long it will last.

Support Tips

Protection Circuit

NOTE: The protection circuit in this battery trips at about 250mA.