chakoman

Just wondering if anybody knows what is necessary to add another battery to my vmax. I figure there is plenty of room between the fuse box and the left headlight. I will be running a winch and lights and would like to keep it separate from the cranking battery. So I guess some sort of isolator will be needed. Any help and part numbers would be greatly appreciated.

viciousknid

iTrader: (8)

A battery box and cables as Far as I can tell. You should upgrade the alternator though.
Are you talking like a winch on the front of the truck or a heavy duty winch in the back?

MonteCarlo31

15942731-CABLE;NEGATIVE AUX BAT
15942730-CABLE;POSITIVE AUX BAT
25862351-CABLE;POSITIVE AUX BAT RH
21021808-NUT (QTY 2)
11517293-NUT (QTY 2)
12135194-RELAY;AUX BAT
15881616-COVER;AUX BAT POS JUNCTION BLOCK
14005061-RETAINER;AUX BAT HOLDOWN
11509853-BOLT;AUX BAT HOLDOWN


From GM Truck Forum. This is for a GMT-900 Truck.


***OR***
http://www.wranglernw.com/ShowCatego...categoryid=790

Google is your friend.

chakoman

it is a warn winch on the front. what are my options for beefing up the alternator.

chakoman

thanks a ton for the part numbers, that really helps. Does anybody know where I can get an isolator as I don't thinkk it is one of those part numbers.

MonteCarlo31

What warn are you running? I personally would not buy an electric after using a hydraulic unit. I can tell you the Mile marker 12,000 hyd will out pull any electric on the market in that size, and probably out pull the 15,000 lb units as well. If you are running the 145 amp alt like most GM trucks you won't drain dual batteries before you burn up your winch motor.

chakoman

I am going to run a warn m12000. So you are saying I do not need an isolator or a different alternator. Sweet!

OneQwikSS

iTrader: (8)

why not just run a yellow top? i think you'd be fine with just doin that

MonteCarlo31

Long pulls w/ the 12,000 would tax a single. I'd just run dual batteries and leave the truck running with the lights on (this triggers the unit to charge at 14+ volts before the pull starts). Two good batteries will work fine. IMO optima's are very over rated. too much $$$ for little if any gain, most people say optima's are good batteries because they go from a 1/2 worn out unit to a new unit, that's like comparing a 4 year old headlight against a new silverstar or something along those lines.

BTW. Wesley Chapel here.

chakoman

so do I or don't i need an isolator. I just want to make sure both batteries don't drain down one another to wear I cannot crank my engine. Thanks again for all of the help.