GUI not updating data

[patman15]

Checklist

• I have enabled debug logging for my installation.
• I have filled out the issue template to the best of my ability.
• This issue only contains 1 issue (if you have multiple issues, open one issue for each issue).
• This issue is not a duplicate issue of any previous issues.

Describe the issue

GUI not updating battery information although query to BMS is successfull. Caused by ea9bd2c#75-76

Reproduction steps

1. run the integration
2. change, e.g. current to/from battery
3. wait at least 30 seconds
4. observe no change

Debug logs

cannot be seen from the logs as they are ok.