So when I owned my 2000 blazer. Two thing were constant problems. The fuel pump and the alternator. The avalanche has a spot for a 2nd battery. I would like to add the second battery, let the alternator charge it but have it be separate from the main battery. Then if my alternator dies be able to flip a switch and get to where I can fix it.
I think I need a isolator to charge. But how do I make it so I can run off said battery when need be.
Old thread but at least you get an idea.
http://www.chevyavalanchefanclub.com/ca ... c=127394.0
Coop
Duel batteries
Moderator: Monochrome
Duel batteries
[quote=""Melis""]The cop asked Coop "Are you really a firefighter?" Coop was like "yeah" then the cop said "ok your in charge" then the cop left 
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DCIV: first to 2,000,000 rep points
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DCIV: first to 2,000,000 rep points