Would installing a battery thats too big overwork your alternator ?
Bought a rebuilt battery to replace my old rebuilt battery which lasted me 3 years . Only difference was they didnt have my size . The battery is about an inch too big for the tray and it sits on a small angle due to it being to wide for battery tray , the terminal post go on fine though , My battery light is on , would the battery being too big for my car cause this ?
No. A larger battery would give you more power for starting. A battery light usually mean the alternator has stopped working.
no, but a dead alternator would mean a dead battery, regardless of size-
as far as overwork? a 50 amp alternator can put out 50 amps...there's no "overwork"~