CHUWI UBook X Battery

How do I know which CHUWI UBook X 12" battery do I have? There seems to be ranges from 7.6V3500mAH to 7.6V6000mAh

Tablet: I bought CHUWI UBook X 12" Gaming Tablet Without Keyboard ,256G SSD 8G ROM,Windows 11,intel Core i5-10210Y,2 in 1 Gaming/Workshop KeyBoard Tablet Laptop PC,2160*1440 2K IPS Display,2023 New Upgrade -

The battery is 4400mAh 7.6V