Hi. New here? Looks like a great forum. Just bought a Razor Eco Metro electric scooter. Stock it comes with three 12v SLA batteries running in series for 36 volts about 40 minute run time 16 mph top speed. I’m thinking of replacing the SLA batts with four 12v LiFePo4 batteries to increase range and top speed. Have been looking at FireStar brand model HJTZ5S-FP-IL cells. Both motor and controller can handle the increase in voltage. However live also been looking at the 3.2v prismatic “pouch” cells. Here’s my question: can you guys recommend a BMS card or controller appropriate to this use? At top speed on an uphill the motor can draw around 20 amps continuously. The cells I’ve been looking at handle that easily.