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MarkEHansen · 05-06-2021, 11:01 AM

How long did you wait after you plugged in to the 30A outlet before you assumed your battery was fully charged?

Note that deep cycle batteries can not take discharges like this. If it is a true deep cycle battery, you should not take it below 50% State of Charge (SOC). If it's a marine/combo battery, you should not take it below about 80% SOC.

If you fully discharge, then you reduce the efficiency of the battery and reduce it's over all life by some large amount (I think 80%?).

05-06-2021, 11:01 AM	#2
MarkEHansen Senior Member Join Date: Oct 2018 Location: Sacramento Posts: 1,005	How long did you wait after you plugged in to the 30A outlet before you assumed your battery was fully charged? Note that deep cycle batteries can not take discharges like this. If it is a true deep cycle battery, you should not take it below 50% State of Charge (SOC). If it's a marine/combo battery, you should not take it below about 80% SOC. If you fully discharge, then you reduce the efficiency of the battery and reduce it's over all life by some large amount (I think 80%?). __________________ 2022 Cedar Creek Champagne 38EL - "Big Bertha" 2019 GMC Sierra 3500 Denali HD 6.6L Duramax TD, CC, 4WD, DRW - "Mr. Beefy"