This high-quality lithium polymer rechargeable battery is perfect for a range of portable devices, including e-books, MP3 players, GPS units, Bluetooth speakers and more. With a voltage of 3.7V and an amp hour rating of 400mAh, it provides reliable and long-lasting power to keep your devices running smoothly.

Designed by G.E.S, this battery is made from high-quality materials and has a cycle life of between 300 and 500 uses. It has a charge rate of 1C (1C max) and an internal resistance of ≤6mΩ. The battery is easy to store, with a recommended storage temperature of between -20°C and 50°C and a storage humidity of 65% RH.

Item has 3 wires