FoxESS Community - Owners & Installers Forum

I’ve had my system about a week and really struggling to get consistency with the overnight charging and the scheduler. Sometimes it works fine, others it doesn’t seem to work and tonight is one example. I currently don’t have the ability to export while I wait for certain approvals so I am just charging at my super off peak rate and using that for the day. Although tonight it hasn’t worked. It did the night before. I did read though somewhere that if your battery reaches a “protection” mode then it disables charging. I did notice that my battery was at 9% when I checked just now and I presume it must have discharged to this level before the 2am window, putting it in protection mode and this could be why? Although why would it have gone this low? I fiddled just now and it started charging. It has now stopped at the 10% and is just running off the grid. I’m currently losing my off peak charging window and it’s all feeing really unhelpful and complicated when it seems to work some nights and not others. Any advice would be really appreciated

I’ve since instigated a forced charge which looks to have started but I have little confidence in the app or system. My app only seems to refresh in 5 minute intervals too which isn’t the most helpful when trying to check and resolve stuff. Is this normal? So it wasn’t until the app refreshed that I saw it was charging. It all feels very manual at the moment and I don’t particularly fancy having to wake up at 2am every day to check the system!

Dropping to 9% isn’t a problem the battery manager works off internal cell voltages and it will cut power once the minimum cell voltage is reached - that usually co-incides with 10% but it can be a few % out, particularly when new and un-balanced.

Your schedule looks ok, do you have any other large loads taking power at the time you were force charging, an EV, water heater, heat pump etc..

At the inverter can you go into Settings (password 0,0,0,0) then On-Grid, Export Control, and depending on your firmware version you may have 2 settings ImportLimitPwr and ImportLimitCur - these should as default be set as ImportLimitPwr = 30000 and ImportLimitCur = 100A - can you post what yours are set to.

Hi Dave

Thanks for your reply. I’m probably being really dumb. When I go into my devices and to the inverter I can’t seem to find a “settings” where I need to put a password etc. The only things I can find are the attached screenshots. Unless I’m missing something very obvious. Sorry!

You need to do that at the inverter panel itself - you can’t see those settings in the app

Thanks for bearing with my stupidity!

My importlimitpwr is 30000
My importlimitcur is 028.7A

MartyH47 wrote: ↑Sun Jan 25, 2026 9:11 am Thanks for bearing with my stupidity!

My importlimitpwr is 30000
My importlimitcur is 028.7A

The importlimitcur may be a bit low (it sets the limit to a max of 7kw house load), do you have other large loads running at that time of day ? - if you do, how big are they ?
it would make sense to increase that limit - for example if you are charging an EV you want it to be at least 50A.

We don’t have an EV or any high draining items outside of regular household appliances like washing machine, dishwasher and these aren’t on at 2am when the scheduler should kick in. It would only be baseline load which is about 100-150w.

Would the fact this current is so low be affecting the scheduler kicking in do you think?

In your first post, you have FDSoC cut off set at 20%.
So it would charge from grid to 20% and wait for solar to reach the Max 95% for the rest of your energy.

Battery cell temperature will affect charge/discharge rates, you have the battery heater option there, can you check the temperature of the cells? It is not very cold currently, but does have an impact overall.

Thank you.

My battery is currently 8.7c. It’s not warm outside but it’s not really cold. Randomly I did see on the app a little frost symbol by the battery on the main dashboard (although it was still showing a similar temp) a day or two ago and then this disappeared after the next 5 min refresh.

So should my minSOC on Grid be set to 95% as well? From your explanation that makes sense.

MartyH47 wrote: ↑Sun Jan 25, 2026 10:48 am Thank you.

My battery is currently 8.7c. It’s not warm outside but it’s not really cold. Randomly I did see on the app a little frost symbol by the battery on the main dashboard (although it was still showing a similar temp) a day or two ago and then this disappeared after the next 5 min refresh.

So should my minSOC on Grid be set to 95% as well? From your explanation that makes sense.

MinSoc could stay at 10% if you want, and best in any "experiment" to only change one variable at a time, this way you know which is the magic setting.

FCSoC does need increasing to stop it cutting off too early, or not even starting a charge.

Thank you. I have removed and replaced my scheduler with the new one screenshot. I think it was the FCSoC max being at 10% which was catching me out. With this now at the same as max SoC it should charge.

Thank you all for your help.

You can test this now, if you set it to run for about 10mins. Best not to run for longer at peak prices, but you can at least see it will work for next main charge.

Also, though it is not currently very cold, you may want to look to run a heating cycle 1hr before your charge, so that it can reach 95% hopefully. This can be something to investigate at a later date.

Just running a test now and it looks like it’s working. Thank you all again for your advice and patience.

Fingers crossed that it performs well tonight for you.

MaterialBarracuda48 wrote: ↑Sun Jan 25, 2026 11:19 am Fingers crossed that it performs well tonight for you.

Good spot @MB