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Originally Posted by jray3
Yup, I'd bet those two recover allright.
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They just went to float - after 14-1/2 hours @ 10A!
I just separated the [hopefully un-murdered] pair and will let them sit for half an hour and then check each battery's voltage to check for internal discharging/damage. After that I will put them on charge again to float them until after work tonight...or maybe tomorrow morning.
Quote:
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Twould be good to run em through a few cycles to 'wake em up' before putting the whole pack back in use. You've discovered why those who tried 'distributed charging' 8-10 years ago abandoned it. Without an alarm to notify you when one of the many chargers fails, it's too easy to kill a battery, or worse.
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Like I said, I normally rely on my Kill A Watt to make sure everything is good:
1070W when I plug it in after my commute to work.
1000W when I plug it in after my commute home (deeper discharge).
But with no Kill A Watt I will have to plug in my battery monitors when charging to prevent this from happening again.
EDIT: I let the two batteries sit for 10 hours and measured their voltages: 12.84V and 12.88V. I reconnected them and turned the charger on and they instantly shot to max charge voltage and after two minutes went to float, so it appears that they have recovered!