Something new is brewing for Yaj Yak's fleet: 2013 3500HD GMC Sierra

1quick

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Jan 29, 2008
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[MENTION=2449]ilikemtb999[/MENTION]

also i dont think i would do two of the same batteries. if i were to buy batteries again.

i think id do a deep cycle large capacity for the aux battery, and more of a starting battery for the main.

i did two x2power batteries and i should have done one and then one monster deep cycle for the aux that could be drained and replenished constantly without worry of having to actually start the truck.

I normally do that on my boats one smaller normal size battery and one group 27 or 31 for the system, switchable on a battery switch so I can isolate them but still charge both off the alternator
 

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