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My charger was starting at about 8 amps and tapering off to about zero as the voltage went up. I don't think I was getting a good charge. My pack voltage was 120 then. When I changed to 144 volt pack I needed to add a boost converter to get enough out of a 110 ac outlet. Now the current is constant 11.5 amps. All the way to 186 volts if I let it. I think the difference is the amps. I had some batteries with unbalanced cells that are balanced now. They would not balance individually with a 12 volt 6 amp charger.
I don't know, what do you think. It is still a manual charger but I have gotten used to it, and I know about how long to set the timer for a certain DOD for bulk charging. Then I always set the acceptance charge for 2 hours at 4 amps. I test SG in all batteries occasionally and balance charge to 186 volts low amps if any cells are drifting lower.
alvin
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