Advice on electrical

[Jacobman 10+ year member]

When i run my system for awhile the bass gets quiet and my HU light dims, actually the whole car dims. I am going to do the big 3 here in awhile, but would investing in a better battery be worth it with the system i have. Im only running 1100rms total, although someday i think i would like to have a sub amp that could do 1500rms but until then yea... 02 camry le with a 105amp alt. Was looking at the HC1400, battery would also be my starter to.

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[bumpin buick 5,000+ posts]

why not get a 1400 as a second batt? that would be sufficient

 

[audiobahnuser18 5,000+ posts]

either do what bumpin buick said or check your voltage on your battery u have now first for one. but if so add a 2nd and BIG 3

 

[Jacobman 10+ year member]

You wouldnt replace the current walmart battery with the HC1400?

 

[IgnoreMe 5,000+ posts]

ill tell you one thing. your bass is not get quieter. your ears are getting used to it. evertime i sit in my car the bass is loud for like 2 mins. then my ears quickly adapt and it just doesnt seem loud at all.

and as far as dimming, if you dont have a voltage reading, you dont have a place to start. you could be dropping only 1 volt and get dimming, its just how the electrical system works. and 1 volt wont make a difference in output to the ear.

 

[Jacobman 10+ year member]

That makes sense, lol thanks. I will take a voltage reading today, if i could get my lights from dimming that would be cool, maybe all i need to do is the big 3, ill start there before anything.

*Big 3*

Sense my alt is 105, i wouldnt use a fuse for the 1/0 power wire of like 125 or something? In the event of a short how high could a spike from my alt be? Basically whats my best bet in fuse sizes so my care doesnt burn up if something bad happens. This is something i havent been able to figure out and i have read through the big 3 thread.

 

[audioarsonal 10+ year member]

your fusing should be on your power wire to your amp then another fuse 18" fromyour amps.this will isolate the wire running through your car if there is a short.the big3 is so more current can flow from alt to bat freely and through the body ground.all this is isolated under the hood so you don't need a fuse between the alt and battery.if you do fuse between the alt and battery and you blow the fuse while driving you better have a spare fuse or you'll be driving without an alternator to keep your car charged and possibly damageyour battery and if you go to long the battery WILL overheat and explode.

 

[413audio 10+ year member]

^he would not be driving without an alternator if the fuse blew... he wouldn't be getting current through the big 3 wire, but since in a big 3, you are supposed to be adding wire and not replacing that wouldn't happen. it would just travel back through the original stock wire, unless he replaced it.

 

[Jacobman 10+ year member]

your fusing should be on your power wire to your amp then another fuse 18" fromyour amps.this will isolate the wire running through your car if there is a short.the big3 is so more current can flow from alt to bat freely and through the body ground.all this is isolated under the hood so you don't need a fuse between the alt and battery.if you do fuse between the alt and battery and you blow the fuse while driving you better have a spare fuse or you'll be driving without an alternator to keep your car charged and possibly damageyour battery and if you go to long the battery WILL overheat and explode.

I wasnt talking about the amps power wire, there is a fuse right at the battery then i have a fused distro so its safe, lol. But you do need a fuse for the alt to battery so your car doesnt burn down, and i would be adding the wire not replacing it so if the fuse did blow power could still get through the stock wire.