Always Backup Power with Growatt: How to Reserve Battery Capacity Smartly

With Growatt, you can reserve a part of your battery for power outages.

• This part is not used during normal operation

• So you always have backup capacity available

• Set this via On-Grid Battery Discharge Stop SOC

Why set this?

Do you use a Growatt inverter with battery and backup function (this can be via backup box or inverter with built-in backup)? Then you can reserve a percentage of the battery.

👉 Without setting:
The battery can become fully depleted → no guarantee of backup during failure

👉 With setting:
A part always remains available for backup → certainty during power outage

Note: this reserved part is only used during a failure.

How to set it

1. Log in with your installer account at: https://oss.growatt.com/login 

2. Go to Monitoring & Management -- Device List

      3. Find the installation via the SN (This can be any SN present at this site)

      4. Click on the gear

      5. Confirm: I have read the disclaimer

      6. Adjust: On-Grid Battery Discharge Stop SOC

What does this mean concretely?

Suppose you set this to 30%:

• Battery stops at 30% during normal use

• During a power outage, this reserve is still used

👉 This way you are sure that capacity is always available.

Want to know more?

Curious about Growatt solutions or want to configure systems smartly?
👉 Check out our range of Growatt products or browse our other knowledge articles on the Academy.