Charging Battery More Efficiently
I have a single Group 27 battery. I love to dry camp. I have a Honda eu1000i generator and a wfco (?) 55 power center. which is the most efficient way to charge the battery - connect the battery di...
Forum Discussion
I have a Meanwell, similar to the megawatt capable of 40 amps. I can change voltage simply by twisting a dial. I also have an Ammeter on the output.
When my single 12v battery is in the ~75% charged range, at 14.5v it will be taking about 35 amps, and if I drop the voltage to 13.6v the battery only accepts about 3 to 5 amps, if that.
So generator charging and the Wiffco are not a good match as the MegaWatt set at 14.4+v, will do much more for a single 27, using less generator fuel. You can also dial the voltage all the way up just to forestall the amps from tapering as battery voltage approaches the mid 14 range and pressure differential is less.
When my single 12v battery is in the ~75% charged range, at 14.5v it will be taking about 35 amps, and if I drop the voltage to 13.6v the battery only accepts about 3 to 5 amps, if that.
So generator charging and the Wiffco are not a good match as the MegaWatt set at 14.4+v, will do much more for a single 27, using less generator fuel. You can also dial the voltage all the way up just to forestall the amps from tapering as battery voltage approaches the mid 14 range and pressure differential is less.
