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Massive dimming problem
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<blockquote data-quote="96TL" data-source="post: 3422289" data-attributes="member: 573032"><p>I'm running a Sundown SAE1000D to a 12" FI Q. Stock highs. I have an '07 Hummer H3. The stock alt is 120 amps. I ran 4AWG power and ground wires for the amp. My headlights, dash lights, driving lights, etc, all dim so bad with the music it looks horrible at night.</p><p></p><p>I did some DMM checks on the batt.</p><p></p><p>Car off, music off, 12.8 volts.</p><p></p><p>Car running, music off, 15 volts.</p><p></p><p>Car running, music on, 13.2 volts at the lowest drop.</p><p></p><p>The battery under the hood looks like a crappy piece of junk. I didn't think it would matter with a 120 amp alt though. Should I upgrade the batt?</p><p></p><p>Thanks.</p></blockquote><p></p>
[QUOTE="96TL, post: 3422289, member: 573032"] I'm running a Sundown SAE1000D to a 12" FI Q. Stock highs. I have an '07 Hummer H3. The stock alt is 120 amps. I ran 4AWG power and ground wires for the amp. My headlights, dash lights, driving lights, etc, all dim so bad with the music it looks horrible at night. I did some DMM checks on the batt. Car off, music off, 12.8 volts. Car running, music off, 15 volts. Car running, music on, 13.2 volts at the lowest drop. The battery under the hood looks like a crappy piece of junk. I didn't think it would matter with a 120 amp alt though. Should I upgrade the batt? Thanks. [/QUOTE]
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