is it normal for the tank to turn itself off when attempting to turn on the carpet? I never had that issue using the stock Taigen motherboard in this Jagd (Same new battery). Only on the IBU3 does my Jagd really struggle to turn on carpet 'til it eventually gives up and I hear the Engine Off activated.
Update: The battery voltage remained constant at 7.4 volts as it completed about a 90 degree spin then shut itself down.

Another Update: Put the stock Taigen motherboard back in with same battery and the tank spins on carpet no problem. RMA'ing from the USA back to the UK is a PITA.