Polymer Lithium Ion Battery - 40mAh

Price:   $3.92

  • Model: Lithium-40MAH
  • Shipping Weight: 0.003kg
  • 99999 Units in Stock

(0 reviews)
(complete orders today,deliverd around 23/08/2026)
  • Shipping time
    About 2-3 days.
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    • FAQ

    This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 40mAh. This may sound like not so much power, but the cell is really tiny… like, about half an inch square!

    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 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.


    Features

    Rated Capacity: 40mAh
    Nominal Voltage 3.70V
    22 mm x 11.5 mm

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