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Old 03-14-2013
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Re: Did I kill my battery?

letting a battery drain or even a couple of times will not kill it.. on a regular lead acid battery, it will cause sulferacation.. not so sure on an AGM.

But think about it.. how many times have people completely drained car batteries with little to no issues other than needing a jump to get the car started right afterwards?
Art Haberland

In the end all that matters is how fully you loved, how gently you lived, and how gracefully you let go of things that did not belong to you -Buddha


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Old 03-14-2013
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Re: Did I kill my battery?

I can say that when HD went to AGM batteries on their bikes a complete discharge destroyed the batteries(yes...plural...don't ask). Charge it fully and watch the performance for a while to be safe.
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Old 03-14-2013
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Re: Did I kill my battery?

Originally Posted by rhr1956 View Post
Honey, did you turn the lights off? My reply was yes. The problem I discovered two days later was, no I had not turned the lights off. The battery was dead as hell. It did show 5.4 volts. I have it on the smart charger now. Do you think I kiilled it or will it recover? It is an AGM battery.
If it accepts the charge and gets back to about 12.8 volts after charging and the float voltage has dissipated put it back into service.

However will almost certainly have lost a little of it's capacity and will die a little sooner.
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