tock, Trace Cut / Track Cut & Upgraded / Reinforced Xiaomi M365 Controllers Trace Cut v2 – increased acceleration by 33%, phase amps. 35A max estimated draw for power settings in custom firmware. Try to avoid using higher braking current. Shipping worldwide (EU £15, outside EU £20) Stock V3 – 25MPH / 40KMH 10S 42v Reinforced – 35MPH / 55KMH 10S 42v – 13S 54v Trace Cut & v2 – 40MPH / 70KMH 10S 42v – 20S 84v v2 increased acceleration by 33% (experimental) 100v Upgraded M365 V3 (35A Max) controller for higher voltage batteries. You can use batteries rated for higher than 35A, just don’t set it higher than 35A in the power settings of the custom firmware. Add an extra battery in series to your stock internal for up to 84v (20S) 2900w fully charged. The extra wire from the controller goes between the two batteries on the series cable.