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Official CarAudio.com Big 3 Thread
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<blockquote data-quote="2023 LTZ" data-source="post: 8828335" data-attributes="member: 686684"><p>Anyone had problems after big3-7 on an impala limited? 3.6 v6</p><p>I keep frying batteries or one cell of 5 new interstates 2 were agm.</p><p>I used 0ga ofc welding cable, crimped the copper ring terminals and heat shrank each end.the voltage of 13.8-15.2 didn’t concern the tech at the dealership when it was there for something else. Interstate is convinced my car is responsible for this. No cel or battery light.</p><p>Additional grounds of alternator case, new bolt from engine to added hole in aluminum engine cradle as well as a distribution block by amps that is bolted to the metal between trunk and passenger compartment.</p><p>I originally had 0 throughput but reduced battery positive to fuse box to 4ga as well as original ground from battery negative to metal cross thing behind headlight. I’d increased alt positive to batt pos and original ground to 0000 using crimped heat shrank terminals then went back to 0. All to no avail.</p><p>Jvc Kwv960 bt </p><p>Jvc kvw 850</p><p>Sony xv5500</p><p>Rf 1000 + rf 600</p><p>Then rf1500 + rf400</p><p>Focal inside</p><p>2-12s at 2 ohm ported in rear.</p><p>These changes in wire size and components has no effect on battery longevity. Last one went in September 22’ hard starting and my warranty is null.</p><p>Best Buy install guy doesn’t see a problem </p><p>Chevrolet doesn’t see a problem</p><p>Crutchfield can’t speculate </p><p>Interstate insists it the vehicle or something with it or the wiring.</p><p>I’d love to get this resolved as buying another battery is fine but not if it only lasts a few months.</p><p>Any leads to a resolution are greatly appreciated.</p></blockquote><p></p>
[QUOTE="2023 LTZ, post: 8828335, member: 686684"] Anyone had problems after big3-7 on an impala limited? 3.6 v6 I keep frying batteries or one cell of 5 new interstates 2 were agm. I used 0ga ofc welding cable, crimped the copper ring terminals and heat shrank each end.the voltage of 13.8-15.2 didn’t concern the tech at the dealership when it was there for something else. Interstate is convinced my car is responsible for this. No cel or battery light. Additional grounds of alternator case, new bolt from engine to added hole in aluminum engine cradle as well as a distribution block by amps that is bolted to the metal between trunk and passenger compartment. I originally had 0 throughput but reduced battery positive to fuse box to 4ga as well as original ground from battery negative to metal cross thing behind headlight. I’d increased alt positive to batt pos and original ground to 0000 using crimped heat shrank terminals then went back to 0. All to no avail. Jvc Kwv960 bt Jvc kvw 850 Sony xv5500 Rf 1000 + rf 600 Then rf1500 + rf400 Focal inside 2-12s at 2 ohm ported in rear. These changes in wire size and components has no effect on battery longevity. Last one went in September 22’ hard starting and my warranty is null. Best Buy install guy doesn’t see a problem Chevrolet doesn’t see a problem Crutchfield can’t speculate Interstate insists it the vehicle or something with it or the wiring. I’d love to get this resolved as buying another battery is fine but not if it only lasts a few months. Any leads to a resolution are greatly appreciated. [/QUOTE]
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