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dual battery?
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<blockquote data-quote="Villeza1" data-source="post: 6685290" data-attributes="member: 608393"><p>Yea that's why I said with the system on. It's not gonna be like you think. Just to run the battery off an alt by itself you'd need 2 alts. 1 for the system the other to run the vehicle. It's still gonna drain with or without an iso. The iso is there so it's not draining the front batt when the system is off. But if you had an upgraded batt under your hood and an upgraded batt in the rear, there really wont be much draining of anything. It's best (for a 1-2 added battery in the back) to run power/ground wire from the front battery to the back battery and do the big 3. The amp can be grounded to the back battery and the back battery can also have a ground.</p><p></p><p>You really dont need an extra battery in the back. Just upgrade your underhood battery with a car audio battery. Deka's have some good cheap batts that are high quality. Kinetik is another top brand, as well as XS power. But I'd suggest the deka's</p></blockquote><p></p>
[QUOTE="Villeza1, post: 6685290, member: 608393"] Yea that's why I said with the system on. It's not gonna be like you think. Just to run the battery off an alt by itself you'd need 2 alts. 1 for the system the other to run the vehicle. It's still gonna drain with or without an iso. The iso is there so it's not draining the front batt when the system is off. But if you had an upgraded batt under your hood and an upgraded batt in the rear, there really wont be much draining of anything. It's best (for a 1-2 added battery in the back) to run power/ground wire from the front battery to the back battery and do the big 3. The amp can be grounded to the back battery and the back battery can also have a ground. You really dont need an extra battery in the back. Just upgrade your underhood battery with a car audio battery. Deka's have some good cheap batts that are high quality. Kinetik is another top brand, as well as XS power. But I'd suggest the deka's [/QUOTE]
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