whatismouse
New Member
- Joined
- Oct 11, 2020
- Messages
- 76
I have 2x 24V A123 bateries in series, for 48V/100Ah.
I noticed recently that while they generally always have the same voltage, they can vary by as much as 2V at end of a bulk charge, with one of the packs getting to 29.6V versus the other at 27.6. Then they will be pretty much the same once they settle at float voltages or under load. I dont have a way to charge them individually so I can't top balance them.
I lowered my bulk voltage from 57.6V to 56.4V because I didn't want to be over-charging one of my packs.
It occurred to me that if I were actually to raise the bulk charge voltage, the BMS would theoretically stop charging one of the packs at the HVC, and continue charging the other pack. If I were to do this once every year or so, would it be an ok way to balance my two packs?
I noticed recently that while they generally always have the same voltage, they can vary by as much as 2V at end of a bulk charge, with one of the packs getting to 29.6V versus the other at 27.6. Then they will be pretty much the same once they settle at float voltages or under load. I dont have a way to charge them individually so I can't top balance them.
I lowered my bulk voltage from 57.6V to 56.4V because I didn't want to be over-charging one of my packs.
It occurred to me that if I were actually to raise the bulk charge voltage, the BMS would theoretically stop charging one of the packs at the HVC, and continue charging the other pack. If I were to do this once every year or so, would it be an ok way to balance my two packs?