Hi all,

As you probably know, I have a Goodwe ES inverter. My batteries are Revov, but the BMS makes them look like a BYD B-Box to the Goodwe.

So two things I have noticed.

1) When I try to bulk charge the batteries and there is no PV available, only about 400 w gets fed to the batteries, irrespective of load (if there is PV, then the batteries get PV - load + 400ish). Is this because the circuit that sits between grid power and the feed to the batteries is limited, or is there a parameter that can be set. The batteries charge, but slowly (and heck, when there's PV available they can take over 2k, so they're not going to blow up if they get a bit more).
2) The system is set so that it will not discharge past 40% SOC when there is grid power available. So, when SOC does hit 40% (and it did this morning) the system starts servicing the load from grid. However, it doesn't send anything at all to the batteries and they continue to lose charge. Slowly, it must be said, but they still lose (currently they are at 38%). 

I am hoping that in both cases there is a setting that can be adjusted and which will not result in any damage, but I can't see what these could be.

Any ideas?

1 hour ago, Bobster said:

When I try to bulk charge the batteries and there is no PV available, only about 400 w gets fed to the batteries, irrespective of load (if there is PV, then the batteries get PV - load + 400ish).

Actually, if there is PV then the approximate power sent to battery is
PV + GRID - LOAD

2 hours ago, Bobster said:

Actually, if there is PV then the approximate power sent to battery is
PV + GRID - LOAD

Where GRID > LOAD but I don't understand how GRID is determined