Does battery size ie; 9 plate as opposed to 11 plate, make much of a difference to performance with fuel injection???

I have been told that using a 7 or 9 plate may not be suitable for a TS with injection, air and p/windows etc.

Anyone got the juice???

Moz!!:cool: :D

All I've been told is to use a big heavy duty battery as they like use alot of juice cos of all the electronics