The ENCORE 552530 400mAh 3.7V Lithium Ion Battery is a high-performance, rechargeable Li-ion solution designed for 3C digital devices and smart home applications. Featuring LiCoO2 cathode material, this compact 5.5*25*30mm battery offers a stable 3.7V voltage, 300 charge cycles, and a lightweight 7.7g design. Ideal for consumer electronics, home appliances, and smart toys, it ensures reliable power with international safety standards and a 12-month warranty.More