Hi All
Helping a friend on his yacht commission his Lithium - and cell balancing is happening.
Set up -
- 3x 200AH Smart Lithium
- VE.Bus BMS
- Multiplus 3K
The balancing is happening exactly as the manual says it will.....
"Be aware that in case of unbalance, the charger will be turned off and on by the BMS multiple times. This will manifest as follows: The charger will be on for a short period of time, then the charger will be off for a few minutes and then on again for a short time and so on. This might be repeated many times. This is nothing to be worried about. This is part of the charge process in case of unbalance and is expected behaviour. If the cells are balanced, the charger will not be turned off until the battery is fully charged."
My question is - does anyone know how long this will take ?
Only 1 battery is out of balance - and it is just 1 cell in that battery that has a high V.
Despite the BMS switching the Multiplus on and off, for nearly 2 hours, the one cell doesn't seem to be making any progress to balance with the other 3 cells in the battery.
The bank of 3 batteries keeps hitting 13.90v - and the Multiplus is switched off by BMS - and despite doing this for 2 hours - it is getting no closer to absorption 14.20v.
Can this take many many hours ?
Thanks
Tim
