is using an “incompatible battery” for my car bad?

by elecnix

Question by jvzq88: is using an "incompatible battery" for my car bad?
my dad bought a car battery for my car that wasn't the "recommended" one, it was just similar in size to my old one. how is that going to affect my car? I haven't used it in a while, and I noticed the mileage is really bad right now. could that be from the battery thing?

Best answer:

Answer by edc201283
A battery is a battery. It will make no difference to your fuel mileage.

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