LED signals of the battery modules

The green LED is flashing (2 s on and 2 s off)

Waiting for valid operating conditions

The conditions for charging and discharge mode are not yet met. As soon as the conditions are met, the battery will start charging and discharging.

The green LED is glowing

Charge and discharge mode

The battery charges or discharges in current-controlled operation.

The green LED is off

No battery voltage

The red LED is glowing

Error

Operation of the battery has been stopped. In addition, a distinct event message and the corresponding event number will be displayed on the inverter user interface or in the communication product (e.g., SMA Data Manage or Sunny Home Manager).

Red LED is flashing (0.25 s on, 0.25 s off)

Alarm event regarding temperature or voltage

An alarm was triggered during operation. The battery keeps running, but the cause should be checked.

Red LED is flashing (0.25 s on, 1.25 s off)

Internal battery alarm

An alarm was triggered during operation. The battery keeps running, but the cause should be checked.

The blue LED is flashing slowly (2 seconds on and 2 seconds off)

Communication connection is being established.

The battery is establishing a connection with the connected inverter.

The blue LED is glowing

There is an active connection to the connected inverter.

Blue LED is off

There is no active connection.

All 3 LEDs are on

Battery update or booting procedure