It might be the ignition switch not turning off the acc. blower. This happen to me , my switch went bad, left my blower running , Killed my batts. Jump the truck off only to find out , the truck won't charge low batts. If the batts are low it won't charge at all, volts go to 0 and the truck will shut off once the batt is completely dead. Now I have to turn the key off, pull the key halfway out then turn the key forward again, I also turn my blower off just for good measure, until I get it fixed. So check this out.
thanks for all the input guys, turned out to be crap batteries, don't get deka batteries. We ruined two sets this week as well as two other batteries in other vehicles. Got some optima's and everything works great. thanks again
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