Rechargeable Battery & ChargerChina 3.7V Square Battery 401214 401215 Rechargeable Lithium Polymer Battery 50mAh Lipo Battery for Bluetooth, Find details about China Rechargeable Battery, 401215 50mAh Lithium Polymer Battery from China 3.7V Square Battery 401214 401215 Rechargeable Lithium Polymer Battery 50mAh Lipo Battery for Bluetooth