4-wire connector 3.7V 1450mAh 474363 Lithium Polymer Li-Po li ion Rechargeable Battery cells For MP4 MP5 GPS PSP - AliExpress
Amazon.com: 18650 Battery Charger 4 Bay Smart Universal Charger for Flashlight Headlamp Battery 3.7V Rechargeable Lithium Li ion Batteries Compatible 18650 26650 21700 10400 Battery Charger (Only AC Charger) : Electronics
Buy Wholesale China Beston High Performance 4 Cells 1.5v Rechargeable Aa Battery 3500mwh Li-ion Battery For Toys Large Capacity Battery 1500 Cycles & 3500mwh Rechargeable Aa Li-ion Battery For Toy at USD