DBz Posted September 30, 2010 Report Share Posted September 30, 2010 My car sits idle at 13.6 idle, but after bumpin for like 10 min it drops to like 12.5 , what can I do to keep the voltage up? New battery or new alternator, or an extra battery in the trunk? (2) Kicker L5 12's Alpine IDA-X305 HU Dual Optimas Big three Kenwood EQ RF Components Hifonics Brutus 1K (Subs) Alpine MRP 250 (Mids/Highs) Lots o' sound deadening Link to comment Share on other sites More sharing options...
ingramcaraudio Posted September 30, 2010 Report Share Posted September 30, 2010 First off do your big three upgrade then upgrade your front battery then alternator then battery in back. Facebookhttp://www.facebook.com/#!/pages/Farmville-VA/Rockwell-Audio/103036213076623?ref=ts Link to comment Share on other sites More sharing options...
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