zhaquirks for Tuya _TZ3210_3ulg9kpo, no functional battery meter

[agvg1]

The device works fine but battery shows 0 %
https://github.com/zigpy/zha-device-handlers/blob/48191cc6ca52b7ad9746d433251638f6966004ac/zhaquirks/tuya/ts0021.py#L64

[Hedda]

@agvg1 if it already has a quirk file for that device then submit a bug report as a new issue

• https://github.com/zigpy/zha-device-handlers/issues/new/choose

Just be sure to always search existing issues before opening a new issue to check that there is not already an open issue for that device.

PS: I wrote a community guide in the Home Assistant forum which more or less explain that this is what you need to do:

• https://community.home-assistant.io/t/zigbee-guide-how-to-add-setup-local-custom-zha-device-handlers-also-known-as-quirks-in-the-zha-integration/683473