Optimum Manual Charging Scheme?
I'm looking for a general description of an "optimum" charging cycle for a 100ah - 160ah AGM battery bank. Let's say that I'm using my Meanwell power supply, adjustable 15v 13.4A. Let's imagine ...
Forum Discussion
Here is what happens when I charge my 155AH battery bank (three each GP 24 85AH 12VDC Interstate batteries in parallel).
I will hit them with my smart mode PD9260C 60AMP converter/charger with 14.4VDC.
My total battery bank will jump to 52-53AMPs DC Current which is over 17AMPS of DC current for each of three batteries.
This current demand will start dropping in DC current as the batteries start taking on charge. In about 15-20 minutes time the DC CURRENT demand is now down to around 8AMPs DC CURRENT still with 14.4VDC being applied.
After TWO HOURS the smart mode PD9260C will drop back to 13.6VDC and the total current is around 6AMPS DC Current now. This mode will continue for another hour at which time the PD9260C will declare the battery is at around 90% charge state. If I leave everything still connected for around 12 more hours the PD9260C charger will drop to 13.2VDC and state the battery is fully charged.
This follows pretty close to what PROGRESSIVE DYNAMICS states in their brochures on their monitored battery charge event which is as follows
"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 battery charging science at play here - not many ways to get around it..
My rule is to have 14.4VDC with a DC CURRENT Capacity of 17-20AMPS per battery being charged if I want to get it done in a quick three hour run time. If you don't have this much current available for each battery in the bank it will will still charge them but will take longer.
I think your new power supply only develops 32AMPS total of DC current so only two 12VDC batteries will be able to be recharged at the same time in a quick three hour time span.
This of course is all for deep cycle wet batteries. I'm sure your batteries will follow something close to these results...
Roy Ken
I will hit them with my smart mode PD9260C 60AMP converter/charger with 14.4VDC.
My total battery bank will jump to 52-53AMPs DC Current which is over 17AMPS of DC current for each of three batteries.
This current demand will start dropping in DC current as the batteries start taking on charge. In about 15-20 minutes time the DC CURRENT demand is now down to around 8AMPs DC CURRENT still with 14.4VDC being applied.
After TWO HOURS the smart mode PD9260C will drop back to 13.6VDC and the total current is around 6AMPS DC Current now. This mode will continue for another hour at which time the PD9260C will declare the battery is at around 90% charge state. If I leave everything still connected for around 12 more hours the PD9260C charger will drop to 13.2VDC and state the battery is fully charged.
This follows pretty close to what PROGRESSIVE DYNAMICS states in their brochures on their monitored battery charge event which is as follows
"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 battery charging science at play here - not many ways to get around it..
My rule is to have 14.4VDC with a DC CURRENT Capacity of 17-20AMPS per battery being charged if I want to get it done in a quick three hour run time. If you don't have this much current available for each battery in the bank it will will still charge them but will take longer.
I think your new power supply only develops 32AMPS total of DC current so only two 12VDC batteries will be able to be recharged at the same time in a quick three hour time span.
This of course is all for deep cycle wet batteries. I'm sure your batteries will follow something close to these results...
Roy Ken
