JavaEnegy smart batteries - works though unlisted, missing heating sensor

[aaronvogel]

Checklist

• I have filled out the template to the best of my ability.
• I have understood that this integration is only about battery management systems with Bluetooth Low Energy support.
• This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• I followed the instructions for devices that are not recognized.
• I have checked out the latest release.

Please describe the enhancement you would like to have.

I have 2 JavaEnegy branded batteries purchased from Amazon. They don't show up on your official list of supported BMS's, but they work nearly perfectly with only 1 issue: they're supposed to have self-heating functions, but the heating sensor doesn't show in the integration. I say supposed to because they're cheap Chinese no-name batteries and I wouldn't be surprised if they claimed something they don't have.

I would like to help verify these batteries as officially supported and either get the heating sensor working or somehow validate that my BMS does not in fact have a heating function.

Additional context

The batteries show up as 12V300A-JAVA#### with ### being a seemingly random 4-digit number.

See attached screenshot to see all the other sensors and diagnostics working for one of the two batteries I have.

[aaronvogel]

Here's a diagnostics file from the same battery. Looking at the manufacturer from the file it appears this BMS falls under the Jiabaida list, just the naming scheme is different.

config_entry-bms_ble-01JYGJ5W9BF4Y461PYN2ZD62WR.json

[patman15]

Thanks for the info, I can add it to the supported batteries using JBD BMS in the documentation.
Regarding the heater, I think this requires a different protocol to read, but I'm not sure this protocol is used via Bluetooth. So, if your Bluetooth app shows the heating status, I would need a Bluetooth packet recording by capturing the Bluetooth traffic on Android or iOS while using the vendor app with the battery.

[aaronvogel]

Ah, okay. Looking at the battery with the My-BMS app I don’t see the heater status either so maybe not available as a sensor via Bluetooth. I saw heater as a possible sensor in HA and thought I should be seeing it.

All good, glad to at least update the list with another “brand” that works!

Thanks for this project, it’s been awesome having this info in HA!!