55 Amp Converter Charge Times
It it possible for a 55 amp converter (with a 14.4 volt quick-charge mode) to take a new Interstate SRM-24 series Marine/RV battery that's discharged to 11.90 volts and charge it to 90% (12.58 volts) ...
Forum Discussion
otrfun wrote:We don't know without measuring the OUTPUT voltage of the converter (to verify whether or not it's going into bulk stage) AND the terminals on the battery (to see how much line losses there are....still need to get that voltage into the 14 range to make any impact). Personally, I don't even bother measuring voltage when charging. I take a specific gravity (SG) reading with my hydrometer and I know instantly where my batteries are at. I don't have to guess or assume or hope. I know with 100% certainty. Now I don't take the hydrometer with me when camping because I'm not trying to charge to full at a CG (I actually don't do any charging while camping but that's for another thread). Takes WAY too much generator time to do that. Most typically run their chargers long enough to make up for most of their usage or a good portion of it. Enough to last till they get back home where the real charging starts.
The 9-10 amps wasn't "charging" current, that was the 120 volt input current to the converter (with NO 12 vdc parasitic loads). Even assuming terrible converter efficiency, the battery should have been receiving at least 30-40 amps of charge current at the start of the charge, right?
