1500w 110 amp alt big enough?

[mikepro89]

Hey, looking to run 1500rms (so 1200-1300 actual) and I have my stock alt. Which is 110 amp. So over guessing the measurements I did 1500w/15v = 100 amp I no that's over estimating but I'm not sure how much left over my car would need, also an extra battery is probably needed? Does that one have to be high end ? Or a second regular battery would be fine?

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[C1500martin 10+ year member]

Only way to find out is testing it. Do big 3 and use 1/0 wire and check your voltage. Your batteries for audio are supposed to be agms not lead acid. So yes itll work but its better to upgrade your starting battery to the biggest agm you can fit. And get a second agm if possible. Sams club and sears sells agms for around $200

 

[mylows10 5,000+ posts]

What car ?

 

[mikepro89]

2011 sonata

 

[mylows10 5,000+ posts]

Might be ok. Some cars can some can't run 0 gauge and do the big3. Maybe change the battery to a agm see if you have dimming lights after

 

[mikepro89]

Ahh fair enough I'm in Canada so there's no Sam's Club and sears doesn't have any car battery's, am I gonna need a high end agm? Or would using stock battery and adding an average agm in the trunk be sufficient?

 

[mylows10 5,000+ posts]

Ahh fair enough I'm in Canada so there's no Sam's Club and sears doesn't have any car battery's, am I gonna need a high end agm? Or would using stock battery and adding an average agm in the trunk be sufficient?

Prolly be fine

 

[mikepro89]

Kk cool thanks!

 

[mylows10 5,000+ posts]

Kk cool thanks!

No prob