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Wiring, Electrical & Installation
Do I need a HO alt and/or a second battery?
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<blockquote data-quote="m4ick" data-source="post: 8378562" data-attributes="member: 637626"><p>Same here, I'm running an MTX1501D at 1ohm on 2 WalMart batteries in a Geo Metro which has about 45AMP alternator. I really don't play it blasting for more than a minute or two at a time and it does fine. The extra battery brings a lot of the amperage to the rear of the vehicle which is great but ultimately your true source of power is from the alternator. Still though, just bringing the amperage back there makes a big difference, try starting your car over a 4 ga wire from the battery in the trunk, doesn't work well (found this out when my front battery's ground was dirty) which just proves how much you gain by having a battery close by.</p></blockquote><p></p>
[QUOTE="m4ick, post: 8378562, member: 637626"] Same here, I'm running an MTX1501D at 1ohm on 2 WalMart batteries in a Geo Metro which has about 45AMP alternator. I really don't play it blasting for more than a minute or two at a time and it does fine. The extra battery brings a lot of the amperage to the rear of the vehicle which is great but ultimately your true source of power is from the alternator. Still though, just bringing the amperage back there makes a big difference, try starting your car over a 4 ga wire from the battery in the trunk, doesn't work well (found this out when my front battery's ground was dirty) which just proves how much you gain by having a battery close by. [/QUOTE]
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Do I need a HO alt and/or a second battery?
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