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auxilliary battery q

1286 Views 8 Replies 6 Participants Last post by  ride154
will changing my auxilliary battery help my car hold its charge for more than 2 days at a time?if not what exactly does it do?car has a new main battery and alternator btw
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jonsmiff said:
will changing my auxilliary battery help my car hold its charge for more than 2 days at a time?if not what exactly does it do?car has a new main battery and alternator btw
I didn't know they had an auxilliary battery - where is it?
 
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