battery keeps goin flat wen i leave it parked up for a day,(brought new battery 1 week ago) got multimeter was kickin out 12.35 wiv engine off, wen its runnin its kickin out 12.80, so i went scrappy got me alternator an it was same, so i put my other 1 bk on, also i hav noticed that wen i turn the ignition 2cd click i aint got no battery light that cums on like it always use 2

any ideas b4 i end up sellin my rs an gettin a subaru (joking)