PD Converters and Water Usage
For Dry Campers Only No secret I've been a fan of PD converters for 15 yrs or more, and for more than one reason. The PD maintains my batteries every day of the year, except for the 4-5 months that...
Forum Discussion
Hi,
Clearly Magnum makes a good quality charger, However, when I recently took the 556 amp-hour battery bank down to 12.1 volts (under a 34 amp load), charging started in bulk at 13.7 volts and 125 amps--even though I have the voltage dialed in to 14.5 on the remote. The charger was set to not draw more than 15 amps and there were 23 amps available at 120 volts. I also have a temperature sensor--so after the amps had tapered to around 40, voltage was 14.9. Total charge time to get to 12 amps (97.8% of fully charged) was 3 hours.
Folks, C/5 is about the maximum you want to slam into a flooded lead acid battery. More than that and positive plate shaling starts to happen.
I don't see low initial voltage as much of a problem.
I've since reset the charger on the Magnum to 13 amps @ 120 volt input which results in a maximum theoretical charging amperage of 108.
Clearly Magnum makes a good quality charger, However, when I recently took the 556 amp-hour battery bank down to 12.1 volts (under a 34 amp load), charging started in bulk at 13.7 volts and 125 amps--even though I have the voltage dialed in to 14.5 on the remote. The charger was set to not draw more than 15 amps and there were 23 amps available at 120 volts. I also have a temperature sensor--so after the amps had tapered to around 40, voltage was 14.9. Total charge time to get to 12 amps (97.8% of fully charged) was 3 hours.
Folks, C/5 is about the maximum you want to slam into a flooded lead acid battery. More than that and positive plate shaling starts to happen.
I don't see low initial voltage as much of a problem.
I've since reset the charger on the Magnum to 13 amps @ 120 volt input which results in a maximum theoretical charging amperage of 108.
