I made 6 cell packs and fited my sr in some how. my esc is getting power and the steering works but the motor dosen't get any power even on a newly chargered pack. it work with other a stick pack that i hooked up but when i solder the other saddle pack on the motor dosen't work. what could be wrong? i now the esc isn't broken so could it be not enough voltage even with 6 cells? can u give me suggestions on what to try.