Installation of an additional battery module
Qualified person

Deadline for the extension of the battery
An extension of the battery modules after two years is no longer possible since mixing used and new batteries can result in reduced power and even malfunctions.
In order to install an additional battery module after initial commissioning of the battery system, always proceed as described in this section.
Procedure:
- Check whether the inverter is equipped with the firmware version required at a minimum (see technical information "Approved Batteries and Information on Battery Communication Connection" of the inverter).
- If the inverter is not equipped with the firmware version required at a minimum, perform a firmware update of the inverter (see manual of the inverter).
- After the firmware update of the inverter, the firmware update of the battery follows automatically. This can take up to 10 minutes.
- Select the menu Events.
- Check the events to see whether the firmware update of the battery has been completed successfully (minimum firmware version of the battery: 1.1.19R).
- Disconnect the battery modules from voltage sources ( > Disconnecting the battery modules from voltage sources).
- Mount and connect the additional battery module.
- Recommission the system with all battery modules.
Also see: