low battery

[whojohnjones 10+ year member]

my battery voltage wont go past 12.4 vlts with amp power line connected (even with amp off) and after a while my car battery will be low enough so it wont crank everything else will work but wont crank but if i disconnect the line from inline fuse the volts will go up...is my battery too small or what

memphis mcd-1000 amp running at two ohms

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[mossberg385t 10+ year member]

sounds like a short somewhere

 

[thevic24 5,000+ posts]

Do you have the remote power lead wired correctly?

 

[thevic24 5,000+ posts]

sounds like a short somewhere

This as well....dose the amp even work?

 

[IBEBUMPIN]

Check all of your wiring. I'm running a 760 watt to my subs and an 800 to my doors and it does fine. It sounds like you're losing voltage somewhere so that would be the first thing i checked. After that, it could be your alternator.

 

[09civic 5,000+ posts]

im guessing you have a cap and this is how you know your voltage?

 

[whojohnjones 10+ year member]

checking with multimeter. and its wired correct. the amp works fine except a bad channel

 

[whojohnjones 10+ year member]

if there was a short it would most def be in the amp power feed right

 

[whojohnjones 10+ year member]

after work doing some testing found that the positive terminal has a ground. is my amp blown? although it works