EG4 6000EX Voltage on Solar Input Draining Batteries?

Hi All

So i noticed today, that evidently part of my battery drain is occurring in early morning/afternoon, when the panels have voltage, but there is basically no Solar Power.
The EG4 6000EX is mainly supplying power from Grid (almost entirely?)

The battery state of charge and current is flat.
But the voltage is linearly being sagged down.

The hardware is 1 X EG4 6000EX, in USE mode.
2 X EG4 Lifepower 4 batteries, connected to solar assistant and NOT the inverter..

The amount of voltage drop below is concerning to me... No way that is caused by a dinky 10 watt DC to USB C power supply for Solar Assistant.
Seems like on top of being a drain on the batteries, the inverter MUST also be wasting a decent bit of power.

I'm thinking i want to top balance the batteries....
Signature Solar tech support mentioned doing a series of "Deep Cycles", said he was going to email me a process. But i never got it.

Any help appreciated.

Kinda frustrating, because this setup was working great for 1.5 months+. Now this seems to be happening....
I dare say this might have started near when i updated firmware last, which was 5/7/2023. Versions 63.22 and 61.14
Thinking about updating to the latest.

Thanks

I am having an issue with my three 6000's....I usually enter the evening hours battery full at around 54 volts. This will last until early morning and then grid power kicks in at 51 volts. With my 12K mini split running at night I am now hitting grid at 10:30 this evening. Should be lasting much longer. Yesterday I ran the batteries down to 51 volts, then switched my house over to grid so that I could only have the inverters charging the batteries.....got them to 54 volts and they all showed full state of charge. So one day of this draining and recharging did not seem to help. Maybe multiple days are required?

I have no idea. Going to try top balancing tonight...
For what its worth, tonight i don't seem to see any voltage sag... I just updated firmware to the latest... But i also turned all my load off near end of day.... Going to top balance then give it a few days of normal use and see if latest firmware helped.

Another pondering...
I have 10 panels, and parrelled them in groups of 5. Mainly due to some shade that hits in the afternoon, and figured try to keep half the array going longer into the evening. The effect of this is that my MPPT Voltage is on the lower end. Still within the 120-480 VDC range, but below the max power range of 277-480... Maybe it would be better to have all my strings in parallel. I would think the Voltage transition would then occur quicker at dusk/dawn. Not that i consider this a real fix... Real fix is the inverter shouldn't be drawing down battery voltage if it doesn't have enough solar to actually charge them, and it should power loads 100% from grid. And actually charge from grid if voltage gets too low, regardless of calculated SOC....

lboucher26 said:

Real fix is the inverter shouldn't be drawing down battery voltage if it doesn't have enough solar to actually charge them, and it should power loads 100% from grid. And actually charge from grid if voltage gets too low, regardless of calculated SOC....

Click to expand...

Here’s your fix.

Post in thread 'Eg4 6000ex-48v Fault 06'