new battery???

[MrSwiss 10+ year member]

my rl-p pounds when my car sits not in motion. as soon as i divert that power to acceleration, the sounds diminishes significatly. just bought a 160a alt. 1600w amp @ 740wrms. will a redtop fix my problem?

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[creater 10+ year member]

a red top should...but i dont think that when you accelerate that most of the current come from your battery but rather the alt...or do u mean when u pull off

 

[JimJ 5,000+ posts]

Hook up a DMM to the battery terminals. Measure what the voltage is with the engine off (float voltage), turn the engine on and measure the voltage while idling, and finally, measure the voltage when you rev the engine.

I doubt a Red Top will fix your problems. Red Tops are starting batteries that provide lots of inrush current to turn the starter, but don't like to have heavy loads on them for a long period of time. It almost sounds like you have a problem with the alternator or voltage regulator...

 

[MrSwiss 10+ year member]

when im pretty much moving altogethor, the bass drops more than 50%. i'm confident it isnt the alt, cuz the lights barely dim, and the care starts up fine. a big3 might help, but i have 4 awg right now.

 

[creater 10+ year member]

try the big 3 fuh real

 

[MrSwiss 10+ year member]

ok fist thing in the moring is to bust out the dmm and get some testing going.