7k rms...

[bgowdy 5,000+ posts]

Not saying more runs would help u but i dont consider dropping into the 12s good voltage ..i drop to 14.2 full tilt 

---------- Post added at 02:14 PM ---------- Previous post was at 02:13 PM ----------

 

You need to go to sams and pick up the duracell agm g31s they are 170-180 each

^^^this but i wasnt gonna say nothing

 

[bgordon]

So the SAMs club group 31 is a 100 amp hr bat?

 

[NASTY08IMPALA 5,000+ posts]

So the SAMs club group 31 is a 100 amp hr bat?

Yes exact same batt as a deka 9a31

 

[mylows10 5,000+ posts]

ok ladies ,what the extra runs of wire is for is to recharge the rear batteries faster that's pretty much it.the amp will draw the power it needs from the rear batts ,until drained so low the the alt kicks in ,that's pretty much why we use all the runs from front to back.the power can either be from the front alt or batts , doesn't matter .op 250 amps isn't enough for 7k daily ,not even close ,its good for about 3000-3500 at best ,the extra batts will help ,but at full tilt you will draw more power than the alt can produce . my advise is to get at least 2 of the 250 amp alts and 4 batts 2-3 runs off of each alt front to back and the same in grounds .ive been competing for 6 years and my truck started with 3 runs of each ,couldn't break a 150 on a burp.added more wire only 8 runs of each and was busting out 152.8 on burps and a 148.8 on music .the whole idea is to try to get the power to the amps as fast as possible and get the batts recharged as fast as possible, 1 run will work ,but slowly and not very efficiently

 

[vetkilr 10+ year member]

Not saying more runs would help u but i dont consider dropping into the 12s good voltage ..i drop to 14.2 full tilt 

---------- Post added at 02:14 PM ---------- Previous post was at 02:13 PM ----------

 

My voltage is more of a car voltage control issue rather then lack of batts. And seeing how I only have the stock 110-120 alt. its doin pretty good.