Equipped with a built-in smart protective PCB charging module, they safeguard against overcharging, over-discharging, overcurrent, and short circuits, ensuring safe and efficient use. Capacity: 650mAh.
1x3.7V 540mAh 802040 Lithium Polymer LiPo Rechargeable Battery For mp3 gps dvd
3.7V 700mAh 2.59Wh Polymer Li Battery Lipo 802040 For GPS Bluetooth Speaker LED