SOC adjustment

2 comments started 2023-08-30 last 2023-09-17
GivEnergy Products
P
#1 Phil_H

2 weeks ago I updated my battery firmware to 3013, I've never really had any issues with the SOC except it jumping up to 100% from early to mid 90s sometimes which didn't cause me any issues. Yesterday I saw my first adjustment at low battery use when the solar was just kicking in.

It adjusted from 50% down to 19%, which I was pretty concerned about given the problems some people have had of over adjustment only for it to jump back up to 100% later on. Unfortunately there wasn't enough solar to get to 100% in the day, though it made it to 90% without jumping.
Today has been better and it made it all the way to 100% smoothly so it appears the adjustment was needed and was correct!

Just thought I would post the details of it given I don't recall seeing any similar posts before and it might be nice for people to know that there are systems where this is working to help prevent crashes/jumps.

The curious thing is that the settled voltage at 100% both in days before and after the adjustment seems to be around 53.15, which I'm struggling to understand because surely the idea is that the pre-adjust 100% was actually a lower SOC (around 70%) and so should have had a lower voltage.

P
#2 Phil_H

So 18 days later and it has done another adjustment, this time from 60 down to 20, unfortunately today was a shocker for solar so I have now run out of battery and am on grid (had the 60% been correct it would have lasted till tomorrow).

I'm assuming it needed to do it (like last time) but wondering if anyone knows the conditions under which it will perform the adjustment? I would rather it adjusted 10% every few days, rather than waiting almost 3 weeks and doing 40 as that is much easier to deal with to prevent running out of battery.

I did try making it happen by pausing the battery at just under 50% for an hour about 5 or 6 days after the last adjustment but it didn't do anything.