System is 5kwp solar into Quattro AC coupled with energy meter/ccgx and Aquion batteries.
Using Battery life and keep charged options so some charge going into batts in winter.
asked
ESS locked at 100% SOC
Hi, when having Keep batteries charge selected; the system doesn’t use SOC to see if a battery needs charge. It charges based on voltage. So something else must be at hand. With Keep Batteries Charged mode; the inverter/charger (Multi or Quattro) should be charging. Check its state (bulk, absorption). Check what battery voltage it reports; check that it has AC/in.
Lastly; since this is Aquion; you might want to contact an Aquion specialist; at Victron we dont know much about those batteries.
And I dont think anyone here on the community does either (welcome to prove me wrong people! ;o)
If the keep charged option is on, does this not mean it only uses the charge in the batteries if the grid fails?
If you want to use the the charge in the cells and make sure they batteries are kept at a healthy state in the winter use the Optimised (with battery life) setting. This dynamically changes the SOC limit based on the charge the solar system charged the batteries in the previous days.
