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Old 06-19-2019, 04:45 PM   #1
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Leaving solar controller on all the time?

Do you leave your solar controller on all the time? I've only been turning it on when we're home. We're still in the building phase but do use the power in the bus a bit for lights or tools. The charge controller (40w MPPT) also does the different types of charge (bulk, float, equalizing) so does shutting it off mess up the timing of these?
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Old 06-19-2019, 05:22 PM   #2
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Not sure on yours. Betting it at least resets the equalize counter.
The only times mine has been off in the past 5 years is when I was working on the system. It does reset the equalize counter on mine when disconnected from power.
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Old 06-19-2019, 05:54 PM   #3
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Likely resets to defaults.

No charger should be allowed to automatically equalize IMO, should be done manually one unit at a time.
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Old 06-19-2019, 06:26 PM   #4
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I leave mine on all the time unless doing system mods or repairs. When plugged I to shore power, I turn off the breaker between the panels and controller
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Old 06-19-2019, 06:30 PM   #5
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I leave mine on all the time.
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Old 06-20-2019, 08:04 AM   #6
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With a good controller adjusted properly for the current situation, no reason to shut it down just because it's not needed.
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Old 06-22-2019, 06:15 PM   #7
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I leave mine on all the time too. When plugged in, a lower amount of juice is being sent to the batteries. My inverter adjusts based on the voltage of the batteries whether it charges or not. They tend to work it pretty well amongst themselves. I have AGM batteries so they donít need to go thru equalization.
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Old 06-26-2019, 05:14 PM   #8
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Engine: DT466E (195hp, 520tq)
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Thanks for all the replies. I'll just leave it on unless we're servicing the panels or something. I will read up on equalizing the batteries though, so I can fully understand that process.
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