Proper power for 2 SQ2200

[Jkidd288]

So at the moment i have a duralast gold battery under the hood and an optima yellow top in the rear powering a single SQ2200 and an audiopipe apsm1200(4 channel). This is charged by a 270 Amp DC Power alternator. When playing right at clipping my voltage drops to about 13.5. I have it wired at 0.5 ohm and Sound Qubed has told me that this will cause the amp to need twice as much input vs 1 ohm. I have a 2nd amp but im worried about putting it on there because i dont know how well my electrical will hold up. I was going to bridge the two amps at 2 ohms so each amp sees 1 ohm. I have my eyes set on an XS Power D1200 which claims it can provide 3k watts as a secondary battery. Will my optima and the xs power be enough to stabilize the 1st amp at a steady 14.8? And if the second amp is strapped will it be able to atleast keep voltage about 14?

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[Jeffdachef 5,000+ posts]

wont know until you try. Recommended is 55 amp hours for every 1000 watts you have.

 

[Jkidd288]

wont know until you try. Recommended is 55 amp hours for every 1000 watts you have.

if thats the case, why is the xs power D3400 recommend for 2500-4000 watts and only has 65 AH?

 

[shauncox26]

Because most people have a ho alt to go with their xs batteries! With out a ho it wpuld dp good to keep up with 1500 rms.

 

[Jkidd288]

Because most people have a ho alt to go with their xs batteries! With out a ho it wpuld dp good to keep up with 1500 rms.

ok so ihave a 270 amp alt, i should be ok with the D1200 as my secondary?

 

[shauncox26]

Only one way to find out. But personally i would by at least 105ah battery for your secondary. If you cant afford the xs d3100 sams club and others sell rebadged dekas for 170-220 each. These budget batts will work just fine.

 

[Jeffdachef 5,000+ posts]

if thats the case, why is the xs power D3400 recommend for 2500-4000 watts and only has 65 AH?

well, XS power is in their own category, much more powerful then a conventional AGM battery. Hence the price premium.

 

[Jkidd288]

well, XS power is in their own category, much more powerful then a conventional AGM battery. Hence the price premium.

Im definitely going to shoot for a D1200 and see how it fairs. If i cant stabilize at charging voltage then i'll just buy a second.