1、This is a kind of quality lithium polymer cell, the safety is guaranteed. 2、3.7V, 1200mAh large capacity, non-oversized in capacity. 3、Multiple intelligent management system, effectively guarantee the safety of recharging process. 4、Effectively prevents the short circuit and leakage of battery, make the battery with fine durability. 5、There are 4 types for you to choose, you can choose according to your demands. Quality lithium polymer cell, the safety is guaranteed. 3.7V, 1200mAh large capacity, non-oversized in capacity. Multiple intelligent management system, effectively guarantee the safety of recharging process. There are 4 types for you to choose, you can choose according to your demands. You can have a try. Features: This is a kind of quality lithium polymer cell, the safety is guaranteed. 3.7V, 1200mAh large capacity, non-oversized in capacity. Multiple intelligent management system, effectively guarantee the safety of recharging process. Effectively prevents the short circuit and leakage of battery, make the battery with fine durability. There are 4 types for you to choose, you can choose according to your demands. Specifications: Name: Rechargeable Battery Material: plastics Type: 4 optional Item size: 71 * 51 * 29mm / 2.80 * 2.01 * 1.14in Item weight: 100g / 3.53ounce Package size: 100 * 100 * 50mm / 3.94 * 3.94 * 1.97in Package weight: 150g / 5.29ounce Packing List: 1 * Rechargeable Battery 1 * Rechargeable Battery