3.7V 1-cell Lipo Battery. Battery life is not warranted and will vary depending on usage. This is considered normal - therefore, a change in battery capacity is not covered under warranty. Important Note.
2pcs 3.7V 1800mAh ST Plug LiPo Rechargeable Battery Lithium Polymer for RC Drone
4 x Li-Po 360821 Battery Lithium Polymer 3.7V 50mAh 21 x 8 x 3.6mm LP GPS MP3 UK
4X 3.7V Battery Lithium Polymer 6000mAh Battery 1S Rechargeable Protective Board
3.7 V Lipo Battery 1000 mAh 803040 Rechargeable Battery Lithium Polymer Battery with Micro Ph1.25 Connection Integrated Protection Circuit for Electronic Devices
Clarke 6239030 JSM1200 1200A Jumpstart - Multi-Purpose with Lithium Polymer Batt