i have an alpine vpower 250 watt runnin a type E and for sum reason my battery light is only on when my sub hits. i dont noe if i have abad battery or if i jus need a capacitor. it also shuts off for a like a second every once n a while. i duno wuts up. any input would be greatly appreciated. thank you

 

Have you always had this problem, or has it just started to come about?

A 250 watt amp should not pull enough current to cause problems with a good electrical system, let along enough that your electrical system cant even supply it and makes it shut off.

A cap wont fix a thing...caps are overrated

I think I would be looking at something with your electrical system first. How old is your battery? Alternator ok? Cables?

 

ive always had a periodical problem with the battery light so i got a new alternator. it went away only to come back bout 2 weeks later. then i hooked up the system and its always on. im not sure how old the battery is. it has no corrosion and the cables to it look fine. ive had the tuck for 2 months so i duno wuts up.
thanx

 

I disagree somewhat. I had a similar set up pushing a single 5 channel amp, and every time the subs hit hard...the lights would dim. Got a Digital Cap and it fixed the problem. The reason why your light is on is b/c you are draining the battery faster than the alternator can charge it thus you are running on lower voltage which causes your light to come one.

That being said, you could be having just an alternator problem or even just a bad battery.

Run your truck to Autozone and they can test both of them for you.

But I wouldn't discount a cap.

My .02