batteries - Why does this mobile phone battery have 4 terminals? - Electrical Engineering Stack Exchange
Laptop Battery Secrets
USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
batteries - Why does this mobile phone battery have 4 terminals? - Electrical Engineering Stack Exchange
Small Size Dtp 502035 3.7V 300mAh Rechargeable Lithium Battery - China 3.7V Lipo Battery, 3.7V Lipo Battery 300mAh | Made-in-China.com
Pinout of a lithium battery
connector pin function WORX Battery Management System (BMS) : r/AskElectronics
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battery charging - Identify which bus, mobile phone batteries use? - Electrical Engineering Stack Exchange
batteries - What are the 8 wires on this rechargeable lithium-ion battery? - Electrical Engineering Stack Exchange
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits