Deep cycle battery charge times
I know there's alot of variables but (rough estimate) what amount of time should I expect to charge my batteries daily. My setup Honda 2000 75 amp powermax boondocker charger 2 gc2 golf cart bat...
Forum Discussion
I go by what PROGRESSIVE DYNAMICS says in their CONVERTER brochures...
This is what PROGRESSIVE Dynamics states in their operating manual on how long it takes to charge a battery using the DC VOLTAGEs listed below: "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 based on having 17-20AMPS DC current available for each battery in your battery bank... NOTE That Progressive Dynamics doesn't even list using DC Charge Voltages around the 12.0VC range as this would take alot more than 100 hours to achieve a 90% or 100% charge state.
Of course if you don't run the batteries down to the 50% charge state these times will different. I get better performance from my batteries by running them down to the 50% charge state before recharging. Topping off the batteries all the the eventually affects my performance in that the batteries will drop to the 50% charge state much sooner.
For me it better to discharge the batteries to their 50% charge state before re-charging... I can do the 50% charge state and get a good 95% performance out the batteries but if I do this 50% to 90% charge cycle more than 12-14 cycle times without doing a full 100% charge state than my batteries really start dropping off on their performance cycle. i.e. they will not operate as long as before producing high DC current output.
Roy Ken
This is what PROGRESSIVE Dynamics states in their operating manual on how long it takes to charge a battery using the DC VOLTAGEs listed below: "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 based on having 17-20AMPS DC current available for each battery in your battery bank... NOTE That Progressive Dynamics doesn't even list using DC Charge Voltages around the 12.0VC range as this would take alot more than 100 hours to achieve a 90% or 100% charge state.
Of course if you don't run the batteries down to the 50% charge state these times will different. I get better performance from my batteries by running them down to the 50% charge state before recharging. Topping off the batteries all the the eventually affects my performance in that the batteries will drop to the 50% charge state much sooner.
For me it better to discharge the batteries to their 50% charge state before re-charging... I can do the 50% charge state and get a good 95% performance out the batteries but if I do this 50% to 90% charge cycle more than 12-14 cycle times without doing a full 100% charge state than my batteries really start dropping off on their performance cycle. i.e. they will not operate as long as before producing high DC current output.
Roy Ken
