Answers: Before you supply batteries, you're going to NEED a HO (high-output) alternator. Capacitors and extra battery are never a good model as they only stress your alternator more.
Get the highest-output alternator you can find.
Also, your going to NEED to do the Big3 upgrade first.
http://www.the12volt.com/installbay/foru...
what humane of truck you have and if it's big replace your factory mobile with a kinetik hc 2000 ok hc 1800 and replace your sou`wester with a hc 600 farad boater you
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