Lithium Ion Polymer Battery - 3.7V 70mAh
Lithium Ion Polymer Battery - 3.7V 70mAh quarter size comparison
Lithium Ion Polymer Battery - 3.7V 70mAh

Lithium Ion Polymer Battery - 3.7V 70mAh


1068 in stock
Regular price $ 3.49 Save $ -3.49

This is a tiny rechargeable Lithium-ion polymer battery that fits perfectly behind the TinyDuino Processor board to power your projects. The battery has a capacity of 70mAh at 3.7V, the voltage can range from 4.2V when fully charged to 3.0V when completely discharged. The battery includes protection circuitry to protect the battery from overcharging or completely discharging.

This battery includes a micro JST SH connector, which is used on TinyCircuits products that support Lithium-ion batteries.


  • Dimensions: 15.0±3.0mm x 15.0±2.0mm x 5.0±0.5mm (0.591±0.118" x 0.591±0.079" x 0.197±0.020")
  • Wire Length: 26.0±5.0mm (1.024±0.197")
  • Weight: 1.90 grams
  • 3.7V, 70mAh

70mAH batteries should not be charged with a TinyScreen plus, as the charge current is too high (200mA). They should be charged using a standard TinyDuino Processor or Tiny Battery Charger (100mA).

    Customer Reviews

    Based on 5 reviews
    Mario M
    Great Service

    When there was no one around who could supply the specific battery, it was Tiny Circuits to the rescue. Not only did they have the exact replacement, but the order and delivery process was seamless. Highly recommended !

    Michael Corriher
    Exactly as ordered

    I didn't think I would be able to find a replacement battery for my minature helicopter, but they had it in stock. Good price and excellent delivery time. Would highly recommend them.

    gareth llewelyn
    Great service

    Not only did the components arrive quickly but the customer service we had to make the system work for us was outstanding.