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#2
12-31-2006, 11:50 AM
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Re: dual batteries
not much info to go on you need to give a bit more. what size alt do you have. what truck. ware is the second batter going to be mounted. what are you going to be doing with it.
get ready to spend some heavy cash. go down to a RV shop. ask them for a dual chagering setup. to run your second battery as a isolated back up. stop in the truck supply store get a bigger alt. the bigger the better. get the new space age mout any ware battery for your second battery. yes its a lot of cash but worth it in the long run. what this will do is let you use the main for starting the truck and the second one for running what ever. now if you just want to keep a battery charged for a troling motor. do not use your truck to try to charge it. bad move. the heavy duty troling motor batterys will blow out your charging system. i just got out of a law sute becoues a old fart wanted to use his truck to charge the wrong type of battery. he wanted to put a troling motor battery in the second battery spot run down to the dinner leave his truck running and be ready to go fishing after lunch. what you need for this type of system is a to cover the bed of the truck with solar cells and a charge controler. one set in the boat and one on float charge in the truck. swap them out during the day, plug it in during the night. 
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#3
12-31-2006, 12:39 PM
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Re: dual batteries
Quote:
Unless you have a special need for dual battery setup you are better off with out them. Why do you want the setup? You would be better of just to get one high amp single battery. MT
__________________
Remember proper testing gives us the answer to many problems. MT
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#4
01-01-2007, 09:31 AM
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Re: dual batteries
With an upgraded alternator.
__________________
   "When I step on the gas, I want people to think the world is coming to an end!" - Homer Simpson 2002 ECSB, Nelson Tune, LS1 electric fans, 145A alternator, K&N FIPK, 160º T-stat, TB coolant bypass, Corvette servo, 4 headlight mod, blue LED gauge cluster
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#5
01-21-2007, 02:24 PM
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Re: dual batteries
I saw this link on another board. looks very nice and clean.
http://www.off-road.com/chevy/reviews/wranglerdb/
__________________
  2004.5 Silverado 2500HD 4X4, LLY, Banks 6-gun/speed brake/intake, Dual bypass oil filter, 4" exhaust, 265/75R16 Bridgestone Dueler A/T Revo2, AirLift airbags, AMSOIL in everything! 84k miles/30NOV11 Yeasu 857D/ATAS-120A - "When all else fails..."
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