schumacher help !!!
 

I have ordered a schumacher cat sx2 pro and i wondered if you could fit a 4500 ni-ph battery pack in it instead of the lipo battery.

Ni-ph? never heard of them. If they are the same size as a brca legal lipo then they will fit. If they are bigger then they probably won't.

May have been best to try the cells in a fellow racers car first?

Neither has Google.. guessing a little confused.. does he mean NiMh's I wonder.

if that's the case then the answer is you can;t fit Ni-MH straight in if you have the lipo kit.

Schumacher did do a Ni-MH version of the cat in a 4+2 layout. This had a different chassis and a few other mounting components. If you buy the alternative chassis then yes, you can run the old sub C cells.