Zigbee Blind battery support

Hi,

I bought a Tuya battery powered Zigbee smart blind and integrated with zha. everything work fine but I have no battery info.

I think it’s an hardware issue but I don’t know … in both case could I do something to have a battery status.

Thanks.

p.s this is the product : TUYA ZigBee – stores roulants motorisés intelligents, moteur d'entraînement, télécommande, commande vocale, moteur d'ombre, fonctionne avec Alexa/Google Home | AliExpress