FoxESS Community - Owners & Installers Forum

Inverter is H1-5.0-E-G2 and batteries are EQ4800.

Following is what I would like to do:

Battery SOC should be kept between 10%-90%

1. From 11am-3pm, charge the battery from solar power + charge from the grid

2. From 5:00pm-7:30pm, export it back to the grid(prioritize home demand first)

3. Other times: self-use only.

How to correctly set values for the above 3 charge periods in the Fox app please?

You can use the scheduler for most of that,

But if you just want to charge the battery from solar between 11am and 3pm, stay in self use and that will cover your house load and charge the battery.

But if you want to charge from grid you will need to set a Force Charge with a maxSoC of 90% between 11an and 3pm - that will charge the battery from solar and grid (if needed) to charge up to 90%.

Then from 5pm to 7.30 set a Force Discharge (it always prioritizes home demand first) - you'll need to set an FDSoC which is the minimum battery reserve you want the discharge to go so that it keeps some power left for your overnight and there is an FDPwr which is the amount of power you want to discharge at. (note: this includes any house load so if you set say 3,000 watts and your house load is 1,000 watts only 2,000 watts will be exported.).

Then at 7.31 set a short self use schedule with your default value for minsoc (usually 10%) and it will stay like that until the next schedule.

Thanks @Dave Foster for your valuable input and time. Are schedules and charge periods different? Can I just set the charge periods and schedules for everyday and forget?

Schedules and Charge Periods are different, the Charge Periods are the ‘old’ way of charging your battery - they are simple in operation and easy to set and forget. Schedules allow much finer control of minSoC, maxSoC, workmode etc.. but they cannot be used together - if you set a schedule it will disable the charge periods.