![Amazon.com: Lithium Motorcycle Battery, YTX9A-BS 12V Lithium Battery with Smart Battery Management System, LiFePO4 Engine Start Battery 6AH 500 CCA Starting Batteries for Motorcycles and ATVs-DLFP9A-BS : Automotive Amazon.com: Lithium Motorcycle Battery, YTX9A-BS 12V Lithium Battery with Smart Battery Management System, LiFePO4 Engine Start Battery 6AH 500 CCA Starting Batteries for Motorcycles and ATVs-DLFP9A-BS : Automotive](https://m.media-amazon.com/images/I/618G2HV5JgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Lithium Motorcycle Battery, YTX9A-BS 12V Lithium Battery with Smart Battery Management System, LiFePO4 Engine Start Battery 6AH 500 CCA Starting Batteries for Motorcycles and ATVs-DLFP9A-BS : Automotive
![BMS (Battery Management System) || DIY or Buy || Properly protecting Li-Ion/Li-Po Battery Packs - YouTube BMS (Battery Management System) || DIY or Buy || Properly protecting Li-Ion/Li-Po Battery Packs - YouTube](https://i.ytimg.com/vi/rT-1gvkFj60/maxresdefault.jpg)
BMS (Battery Management System) || DIY or Buy || Properly protecting Li-Ion/Li-Po Battery Packs - YouTube
![I followed this constant current load circuit from greatscott to determine my 18650 battery capacities. Instead of the 500k pot i used 100k and for the mosfet i used K4111 n channel I followed this constant current load circuit from greatscott to determine my 18650 battery capacities. Instead of the 500k pot i used 100k and for the mosfet i used K4111 n channel](https://preview.redd.it/y5vpyfpv9ed51.png?auto=webp&s=0e44701d7455e7b379e2adb276c8612febce7b3b)