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


509 in stock
Regular price $ 4.95 Save $ -4.95

This is a tiny rechargeable Lithium-ion polymer battery that fits perfectly behind the TinyDuino Processor board to power your projects. The lipo 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 lipo battery includes a micro JST SH connector, which is used on TinyCircuits products that support Lithium-ion batteries.


  • Nominal Voltage: 3.7V
  • Nominal Capacity: 70mAh
  • Max Charge Current: 70mA (1C)
  • Max Discharge Current: 70mA (1C)
  • 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
  • Battery Connector: JST SHR-02V-S-B
  • Mating Connector: JST SM02B-SRSS-TB(LF)(SN)

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 7 reviews
    Jonas Elm
    Perfect for my 3D Glasses

    Both my Epson 3D Glasses went in to problems with the charging after a few years. Original batterys where just 30mAh. After som googling I found these. With a bit of patience I manage to take the glasses apart and change the battery inside. Now they working perfect again and with 70mAh I don't need to charge them as often as the old ones. Thanks to Tiny Circuits for the fast shipping.

    fantastic little battery

    I used this to replace an old battery in a micro helicopter. It works better than the original, with a longer use time.

    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 !