Jason Vallina's posts

Posted by Jason Vallina on Mar 17, 2010 11:03 am

#1 - Renewable Energy > Technical Discussion: Other > Re: Low Battery Cut Out Limits

Sascha D has the right idea on this one. Battery voltage under load does not correspond to rest voltage, the latter being the measure of a battery's state of charge. If the cut-off were set at 48V or higher, you would regularly lose your inverter when you loaded up the system. I know that Outback chargers with AGS have different setpoints for 2-minute, 2-hour, and 24-hour voltage cutoffs, so that you can differentiate between a battery that's showing low voltage under load and one that has truly reached a significant depth of discharge.

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