Sounds like they are full! Nice ?Another data point.
Still some sunshine with potentially 2kW from panels.
Actual draw is 300W to satisfy load from house.
Battery 1 BMS status OVP @ 53.86V
Batteries 2-5 BMS status FULL @ 53.48V (within 0.02V)
All 5 batteries show 0A current.
So, the master battery prevents the other 4 from going higher, correct?
Yep, sucked 5.5 kw outta them batteries and the breaker blew. ?
It was divided up but yeah most of it apparently since it tripped the breaker in the transfer switch.5.5kW on a single leg, I hope.
So you were charging around 25 amps?Another data point.
Still some sunshine with potentially 2kW from panels.
Actual draw is 300W to satisfy load from house.
Are your cells way out of balance for it to trigger that low?Battery 1 BMS status OVP @ 53.86V
It sure seems this way.Batteries 2-5 BMS status FULL @ 53.48V (within 0.02V)
All 5 batteries show 0A current.
So, the master battery prevents the other 4 from going higher, correct?
So you were charging around 25 amps?
Are your cells way out of balance for it to trigger that low
That look good, way better than mine, but you're in a relatively flat spot of the charge curve.
Hope you see enough sun to stay charged this week.
Yes I bought the 12 stud bus bars from signature solar and I attached that to my SGP battery rack. Then I connected the batteries to my inverter using 4/0 wire and the victron lynx distributor, this is not necessary but I liked how clean it was and I use the victron smart shunt for battery monitoring . What’s great about that is if you have solar assistant you can use the shunt plugged right in to pie for accurate battery SOC from anywhere just need the VE direct cable and that’s it the smart shunt is incredibly accurate and much more accurate and more details then I was getting from the closed loop coms.Did you disconnect the communication between batteries as well? Just connect the Power cables/buss? Do you monitor the batteries with any kind of software?
Did you disconnect the communication between batteries as well? Just connect the Power cables/buss? Do you monitor the batteries with any kind of software?
No I’m open loop using the victron smart shunt to measure state of charge and it’s incredibly accurate!Are you using BMS communication?
Looks like the SOC calculation is correcting. At ~53.5v and it no longer shows 100%Currently. Running under USER charging from Grid and Grid Bypass and the Sun is Shining! Makes me cry!
View attachment 189331
Yep... a bit it seems.... we'll see after this run....Looks like the SOC calculation is correcting. At ~53.5v and it no longer shows 100%
Dude, this thread IS my LOG.Log, log and more logging. Collect all the data you can.
As I suspected, your cells are out of balance.Yep... a bit it seems.... we'll see after this run....
actually I just was away a minute and now they are all showing 100% SOC (and interestingly I just noticed that none of those SOC parameters in the inverter show up while in USER mode....so ain't gonna shut off or start or stop charging based on SOC.
View attachment 189341
Factory Balance Voltage? Is that one of the Inverter parameters? or in the BMS?As I suspected, your cells are out of balance.
If you didn't reduce the balance voltage setting on every BMS you will have to hold the voltage higher to get them to balance, I can't remember the factory balance voltage that you posted recently.