I have a pack that is 36V(nom) but charges up to 41V(max)
Its taking forever for my crappy 6A charger to charge up even one of these packs. I would guess an hour or two. Plus I have 3 packs.
As I said 36Vnom 41Vmax and 6Ah, times 3 is 18Ah.
I have three 24V-30V 15A Meanwells, and I was thinking to fast charge, but I dont want to go too fast.
18/15 = 1.2C
When set the voltages to both mw's to the exact same voltage, 20.5V, put them in series to get 41V, then connect to the 3 packs which are in parallel (and the exact same voltages!!!!)
I connect my digital multi meter to view voltages on the mw's.
I connect the batteries, and I see the dmm go from 33V and it slowly rises.
I assume its doing 15A into the battery, so thats 1.2C
The mw's fans are blasting away until it reaches 41V then the fans turn low.
At that point, how long do I leave it still running. I keep a close eye on it.
I have a cheap rc watt meter I could view the amps with, its laying around here somewhere. From my understanding, when the fans turn low on the HRP-300-24 it should be pumping out 3A.
My last pack the mw's were running hot, but the safety features on the mw's are superb so I kept close watch, feeling it every now and then.
Your help would be appreciated here, because I dont want to fuck this pack up, like I did my ultra safe LiFePO4's that I hacked up.
FYI - These packs I am running now are LiMn (1.6Ah) and I set to 4.1Vmax/cell. The pack is 10S2P but paralleled so 10S4P to reach the 41Vmax 6Ah, then 3 of those I hook up in parallel. If that makes sense to you.