i have a 2006 k-9 , i am on the 3rd EHC and third battery, i recently had the most updated EHC installed by my dealer,3 months ago. with, a new battery also. worked good at the shop until i got it home, went to fire it up and the starter engages for about 1/2 second then the blinkers flash like emergency flashers... i am told the batter is bad, had it on the battery maintainer/charger with no difference, anyone else with this problem and do you all think it really is the battery?

you may just be overloading the entire system with all that you have on it. remember, it's not a car with a 750cca optima battery and a 160 amp alternator to keep it charged up. :bang: