Ok, almost three weeks ago I put a larger system in my truck....went from one 10 with hifonics 400w rms amp to

Hifonics amp powering Polk components
Rockford Fosgate T5002 amp- (should put out about 1100ish @ 2ohms)
powering 2 10" Polk momo subs which only handle 300 rms each but i figure someday i would upgrade
Put in 2 gauge wire to distribution block and 4 gauge from block to both amps...

About a week and half later after putting that in my truck wont start before work or when I leave work... Well I didnt get it looked at but after that it started the fine untill today, about a week later. So i took it to oreillys and they checked it and said it was dead like i figured so I got a new battery. So Im wondering if the system I put in caused the battery to die or it was just a coincidence? I know that when you add up the fuse amps, the output of the alternator should be more than what the sum is correct? Anyone know how many amps the alternator puts out on the 4.2 v-6?

Thanks
Ben

 

I would check out all the normal stuff, like good grounds, tight connections, alternator output (is it actually working?) then do the same on the amp install.

 

Are you driving the truck engine long enough to recharge the battery? If you're running your system and draining the battery, you have to make sure you replace the charge sooner or later. I always keep a battery charger hooked to my battery when I'm cranking the tunes out in the driveway for more than 15-30min. Idling the engine is an expensive way of charging the battery unless you have no other alternative.

Batteries will have a premature death if left in a partially charged state due to sulfation.

Also check if your amp enable line is always on. There's inherent current draw when the amps are enabled, even if your system isn't doing anything.