battery

Cheak belt if gruves deep in felt may be skipping if ok altarnater bad ck plugin to are battery cables clean cheak the bolt side it happen to my 05 cables 2.2 jz

I'm assuming you cleaned the battery terminals and fastened them correctly. Next step, check the negative wire to the starter from battery make sure wire is on securely at the starter, might be lose, finally have AutoZone check your alternator. My guess is your alternator is the issue.

Also check serpentine belt that turns the alternator when vehicle is on. Might be too old and slipping. Alternator might not be producing enough juice to keep vehicle on. Do that before you remove alternator.

Sounds like a bad alternator. Hope that helps! Jim