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
I go by this brochure report published by Progressive Dynamics on how long it takes to re-charge deep cycle batteries.
"Progressive Dynamics ran this test on the amount of time it took a PD9155 (55-amp) converter/charger set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.
14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.
13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.
13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."
This is just about what I see here in my setup when doing the same thing.
I use a home made BATTERY MONITOR PANEL to watch my batteries very close when camping off the power grid. Then when the battery banks reads around 12.0VDC I will hookup my trailer 30AMP Shore Power cable directly to the 120VAC receptacle of my 2KW Honda Generator using a RV30A-15A "long" adapter. This will power up my trailer on-board PD9260C Converter/charge and will re-charge my three 85AH Interstate deep cycle batteries in a 3 hour generator run time. I measure my DC AMPS being drawn by the battery bank using a DC CURRENT meter setup between the converter/charger and the battery bank.
Roy Ken
"Progressive Dynamics ran this test on the amount of time it took a PD9155 (55-amp) converter/charger set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.
14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.
13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.
13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."
This is just about what I see here in my setup when doing the same thing.
I use a home made BATTERY MONITOR PANEL to watch my batteries very close when camping off the power grid. Then when the battery banks reads around 12.0VDC I will hookup my trailer 30AMP Shore Power cable directly to the 120VAC receptacle of my 2KW Honda Generator using a RV30A-15A "long" adapter. This will power up my trailer on-board PD9260C Converter/charge and will re-charge my three 85AH Interstate deep cycle batteries in a 3 hour generator run time. I measure my DC AMPS being drawn by the battery bank using a DC CURRENT meter setup between the converter/charger and the battery bank.
Roy Ken
