Anyone know how to safely use six Valence U27-12XP in 2S 3P (24v nom)? They all have internal BMS so evidently none of them can ever go overcharge or undercharge unless a BMS or hardware failure happens.
I'm assuming that somehow connecting the existing Valence BMS cables to each other from battery to battery in some arrangement does nothing without the Valence BMS system.
Do I need to go out and find the full Valance BMS system to run safely in 2S 3P?
Would running a Victron Battery Balancer between the parallel sides and to the midpoint be sufficient?
What about paralleling all the midpoints? The Victron Balancer calls for paralleling the mid points but I have heard some say they don't like doing that and to just run separate strings as far as the mid point goes.
To try to stay in range and to try to increase cycle life some;
I set my inverter to cut off at 25 volts. (~14% SoC)
I set my charger absorption charge at 28 volts and storage charge at 26.6 volts. (~90% SoC)
This on 2S. I haven't tried 2S 3P yet.
Here is a pic.
Thanks in advance,
-Me72
I'm assuming that somehow connecting the existing Valence BMS cables to each other from battery to battery in some arrangement does nothing without the Valence BMS system.
Do I need to go out and find the full Valance BMS system to run safely in 2S 3P?
Would running a Victron Battery Balancer between the parallel sides and to the midpoint be sufficient?
What about paralleling all the midpoints? The Victron Balancer calls for paralleling the mid points but I have heard some say they don't like doing that and to just run separate strings as far as the mid point goes.
To try to stay in range and to try to increase cycle life some;
I set my inverter to cut off at 25 volts. (~14% SoC)
I set my charger absorption charge at 28 volts and storage charge at 26.6 volts. (~90% SoC)
This on 2S. I haven't tried 2S 3P yet.
Here is a pic.
Thanks in advance,
-Me72