401020 3.7V 55mAh Polymer Lithium Battery Rechargeable For Watch Beauty Equipment Bluetooth Earphones Selfie Stick Smart Watch

3.7V 55mAh 401020 Polymer lithium battery rechargeable for Watch Beauty equipment,Bluetooth earphones,Selfie stick,Smart Watch Model: 401020 Type: Lithium battery Capacity: 55mAh Rechargeable:YES Charging Voltage: 3.7-4.2V Rated Voltage: 3.7V Size:About 20x10x4mm Features: 401020 3.7V, 55mAh rechargeable Li-Po battery. Built-in intelligent protection PCB charging module, effectively prevent over charge, over discharge, over current, short circuit. it is widely used in Bluetooth headset, watch, beauty instrument. Product features: 1.Over charge Protection 2.Over discharge protection 3.Overcurrent protection 4.Short protection Attentions: 1. Due to manual measurement, please allow for small size deviation. 2.When the battery is not in use, it should be removed from the device. 3.Please make sure you have battery space for your device before bidding, we hope you purchase smaller size batteries. 4. The red and black lines should not be connected to avoid short circuit after battery is charged.