Battery relocation for HANDLING (not drag) - best spot to mount?

Except almost of those also have a sub-200 treadwear. Which may be street legal in some cases, but they're not really streetable tires. The Toyo R1R, the only one with a 200 treadwear, has it's widest 15" option as a 225/45/15, which is only 23" tall. And is still narrow for handing.
ya, he had another thread when this started this where he was adamant about staying with 15's. as for 200 tread wear, i don't want my handling car with tires over a year old anyway. might as well get them sticky and wear em' out :lol: