Tesla Powerwall integration shows battery level as "reserve" instead of charge

[robertalexa]

The problem

On the frontend, while looking at the Device coming from the Tesla Powerwall integration, next to the logo, the battery level reported is the one of the Backup Reserve, instead of the Charge.

As the Backup Reserve is a fixed "threshold" of how much charge to keep in case of emergency, and not the current battery level, it makes more sense to display the "Charge" level instead.

I am not sure if the current behaviour is by-design or just an oversight, so forgive me if i am raised something that has been discussed before (wasn't able to find a reference to this).

Here is a screenshot showing device battery level 24% matching the Reserve, while the battery level is currently 100%

Thanks in advance

What version of Home Assistant Core has the issue?

core-2024.4.1

What was the last working version of Home Assistant Core?

N/A

What type of installation are you running?

Home Assistant OS

Integration causing the issue

powerwall

Link to integration documentation on our website

https://www.home-assistant.io/integrations/powerwall

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant]

Hey there @bdraco, @jrester, @daniel-simpson, mind taking a look at this issue as it has been labeled with an integration (powerwall) you are listed as a code owner for? Thanks!

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