Multiple Chargers
I’m traveling and the charger has failed. Until I can get it repaired I’ll buy and use a standard auto charger. Have you used multiple chargers on a battery bank or do you know which ones work in that...
Forum Discussion
Battery natural acceptance rate at 14.5ish volts and a 22% charging rate would have the 180 constant amps start to taper at about 72% SOC.
So to accept all 180amps, the 810AH bank would need to be down at least 28% or 227AH down from full
The total amps while tapering below 180 would be shared between the chargers proportional to their voltage spreads above battery voltage.
While both chargers have some spread, they will add their amps but the lower voltage charger will do a smaller share. (instead of half each as though they were equal voltage--same if they have different wiring Rs of course) Eventually only one of them will be doing any amps to finish the charge.
If I run my higher voltage (14.8v) 40amper with a lower voltage(14.6) 35amper they will do 75a then the 35 amper starts to taper while the 40 stays at 40. Eventually the 35amper tapers down to zero and says FUL. At this point the 40 amper starts to taper from 40 down the slope till it says FUL
So to accept all 180amps, the 810AH bank would need to be down at least 28% or 227AH down from full
The total amps while tapering below 180 would be shared between the chargers proportional to their voltage spreads above battery voltage.
While both chargers have some spread, they will add their amps but the lower voltage charger will do a smaller share. (instead of half each as though they were equal voltage--same if they have different wiring Rs of course) Eventually only one of them will be doing any amps to finish the charge.
If I run my higher voltage (14.8v) 40amper with a lower voltage(14.6) 35amper they will do 75a then the 35 amper starts to taper while the 40 stays at 40. Eventually the 35amper tapers down to zero and says FUL. At this point the 40 amper starts to taper from 40 down the slope till it says FUL
