Help understand the schedule settings for the EP760

[Kharlym.S]

@BLUETTI_CARE,
Hi, please help me understand the schedule settings for the EP760.

Here’s how I understand them:
1. Off-peak:
• The grid is available, and the time matches the schedule: The EP760 charges to the set level and operates in bypass and UPS mode (there’s an issue here, which I’ll mention below).
• The grid is unavailable, and the time matches the schedule: The EP760 discharges, supplying energy to the loads.
2. Peak:
• The grid is available, and the time matches the schedule: The EP760 discharges, supplying energy to the loads, but does not charge the batteries or operate in bypass or UPS mode.
• The grid is unavailable, and the time matches the schedule: The behavior is the same as when the grid is available.
3. Middle period:
• The grid is available, and the time matches the schedule: The EP760 discharges, supplying energy to the loads, but does not charge the batteries or operate in bypass or UPS mode.
• The grid is unavailable, and the time matches the schedule: The behavior is the same as when the grid is available.

Is this correct?
I have done some experiments and I have not seen any difference between “Peak” and “Middle period” modes, except that the batteries are not charged in “Middle period”. So what is the purpose of this mode?

Now about the issue I’ve encountered while living in Ukraine, where frequent power outages occur in the city grid.

Current behavior (when the entire day is scheduled as “Off-peak”):
After the grid becomes available, the EP760 charges to the set level. Following a short period of self-discharge to 78/79%, the battery charges again.
In my opinion, this leads to battery wear, as recharging occurs several times per hour (due to the high self-consumption of the station).

Desired behavior:
Let’s assume the EP760 is discharged to 40%. When the grid becomes available, it charges according to the schedule until it reaches the set level (e.g., 80%). After reaching the maximum level (80%), charging stops, and the system continues to operate in bypass and UPS mode. When the battery’s self-discharge (which is quite significant) reaches a lower limit, e.g., 50% (do not confuse lower limit with the lower limit set in the settings, it is simply some reasonable limit for self-discharge), the EP760 charges again up to 80% and then resumes operation in bypass and UPS mode.

[BLUETTI]

@Kharlym.S
When the grid is unavailable, the settings become invalid, and the system operates off-grid according to the load priority principle. Time control mode is used in areas with varying electricity costs, discharging during peak price times and charging during off-peak times to save on electricity bills.

You can set it up like this according to your needs: set the SOC to 40-80%, do not set it to charge all day, with a charging interval of 3 hours. For example, charge from 1-3 PM during off-peak hours, then from 7-9 PM, and so on.

[Kharlym.S]

@BLUETTI,
Are you suggesting to set up a schedule like this?

I feel like with these settings, I risk being left without backup power. My consumption is quite high, and during the 3-hour middle period, it’s quite possible to drain the system down to 40%. After that, during the off-peak period, a power outage in the city grid could occur. As a result, during the outage, I would have only 40% of the backup remaining, which might not be enough to last until the next period when the grid is back online.

[BLUETTI]

@Kharlym.S Then you can set “SOC low” a little higher.
Adjust it flexibly according to the actual situation, and try to set the charging during the peak period.

[Kharlym.S]

@BLUETTI,
Hello!

The suggested settings are not suitable for use in a mode where electricity is turned on and off outside of a regular schedule.
The situation in Ukraine is currently dire, with power outages occurring daily at varying intervals and for different durations.

It is not possible to charge the EP760 on a consistent daily schedule (which is currently the only setting available in the app).
To use the EP760 effectively, you need to manually turn the “Charging from Grid” option on and off several times a day. Alternatively, you can enable the charging schedule for the whole day, but in this case, the station constantly tries to maintain the charge at the set level (80%). After discharging to 78–79%, it recharges back to 80%, which accelerates battery wear.

To optimize the use of the EP760, the settings lack an option to adjust the discharge level that the station allows.
If a charging schedule is set for the whole day and the city grid is available, the EP760 would avoid continuously recharging by following the discharge level setting, allowing discharge in bypass/UPS mode (e.g., down to 65% of the maximum set 80%).

Is it possible to implement such a setting in the future?

[BLUETTI]

The technical engineer replied: there is no such setting, the system can’t achieve both.