Rechargeable lithium battery type 21700, 3.7V 4000mAh
Lithium Ion Polymer Battery - 3.7V 70mAh | TinyCircuits.com
Amazon.com: FPVERA 3.7V 1200mAh Li-ion Battery 2PCS 3.7Volt Rechargeable Batteries with USB Charger Cable SM-2P Plug for RC Car Drift Monster Truck Off-Road Vehicle Remote Control Car High-Speed Climbing Racing : Toys
Battery Lithium Ion 3000mAh 3.7V - Audiophonics
3 Draad 3.7V 500Mah 562438 Polymer Lithium Ion/Li Ion Batterij Voor Slimme Horloge Mp3 Mp4|battery for smart watch|li-ion batterybattery for - AliExpress
3.7V Rechargeable Lithium ion Battery LP18650A+ 3500mAh With PCM and JST XHP-2 Connector
Amazon.com: 4 Pcs ICR 10440 Rechargeable Lithium Ion Battery,3.7v Batteries 350mAh (0.39 * 1.73 inch, Shorter Than AAA Size) : Health & Household