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<blockquote data-quote="retrojordans" data-source="post: 7266469" data-attributes="member: 630134">Most people have problems with AGM batteries because they can deeply discharge and not be completely ruined, well the little ****** load testing machines pep-boys and autozone likes to use don&#039;t know this they ask you stupid questions like &quot;how many cold cranking amps is it?&quot; which has nothing to do with car audio loads which are long term cycle loads...e.g. 100amps for the length of a whole song...not turning a high torque motor for 3 seconds (starting a car in winter)A deeply discharged deep-cycle AGM battery (6.xv-9v) is not a huge problem..They can be recovered. Not to mention if your alternator(s) was up to the task your batteries would never drop to such ridiculous levels.The best method for recharging a deeply discharged AGM battery is to purchase a modern charger that has kept up with battery technology. Many chargers now have AGM-specific settings and de-sulfation steps that help recondition and recover deeply discharged AGM batteries. These are becoming more common, and they work well for all lead acid batteries. They have the additional capability of doubling as a battery &quot;maintainer&quot; for vehicle storage. Some come with additional wiring to permanently attach leads from your battery to an accessible spot on your vehicle. This makes it easy to hook up when you store your car, truck, boat or RV.Batteries require maintenance and that goes for any brand...If I didn&#039;t maintain a XS power battery and let it die because I&#039;m a moron, you think I would say that on a forum? Or just say &quot;Those ****&quot;....yea...</blockquote>

[QUOTE="retrojordans, post: 7266469, member: 630134"] Most people have problems with AGM batteries because they can deeply discharge and not be completely ruined, well the little ****** load testing machines pep-boys and autozone likes to use don't know this they ask you stupid questions like "how many cold cranking amps is it?" which has nothing to do with car audio loads which are long term cycle loads...e.g. 100amps for the length of a whole song...not turning a high torque motor for 3 seconds (starting a car in winter) A deeply discharged deep-cycle AGM battery (6.xv-9v) is not a huge problem..They can be recovered. Not to mention if your alternator(s) was up to the task your batteries would never drop to such ridiculous levels. The best method for recharging a deeply discharged AGM battery is to purchase a modern charger that has kept up with battery technology. Many chargers now have AGM-specific settings and de-sulfation steps that help recondition and recover deeply discharged AGM batteries. These are becoming more common, and they work well for all lead acid batteries. They have the additional capability of doubling as a battery "maintainer" for vehicle storage. Some come with additional wiring to permanently attach leads from your battery to an accessible spot on your vehicle. This makes it easy to hook up when you store your car, truck, boat or RV. Batteries require maintenance and that goes for any brand...If I didn't maintain a XS power battery and let it die because I'm a moron, you think I would say that on a forum? Or just say "Those ****"....yea... [/QUOTE]

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