Hi all,

Very similar issue to what @Longbow2000 experienced:

Over a couple of months my SOC kept on falling. When it reached 60%, I called Deye. They helped me do a MAIN version update (Fig1). It then jumped back to 90% but over the last couple of months it has again kept on falling steadily (Fig2 - not very clean but SoC is dropping over time). I don't have solar panels, I am simply using it as a battery backup. The grid is supposed to charge the battery all the way to 100%?

The rest of the figures show all the relevant settings.
What could be causing this problem? I am worried that this might be damaging the capacity of my battery.
Also, I know a suggestion was to downgrade to an older version in the above-mentioned post. But that post is from early 2023. I would assume the latest firmware has resolved this bug?

Any help would be greatly appreciated.
 

 

Edited October 16, 20241 yr by Fielies23
Grammer

Hello dears, could you please help me that how i could make the inverter provid power to the load from battery always, even if the grid is on?

@Fielies23,

In my view, you are keeping your battery at 100% all the time (according to your timer settings). Lithium batteries don't like that, and like to be cycled. (Discharged and then charged again). I would start to set the SOC values (much) lower as the night goes on - forcing the system to use the batteries, and then charge the system up to 100% in at least one of the time slots, maybe the last one before sunset, so you have full capacity for the night again.

Hi All,

Just want to give feedback incase someone else runs into a similar issue.

The problem was with the Hubble AM5 battery firmware. I think the underlying calculation used to determine SoC was causing an offset that kept on accumulating. Called their support team (really great!) and they did a remote firmware update. Working great now.