Amazfit Watch faces

Hello.
I have a trex pro for 15 days.
the first time I charged the battery, it took forever for it to fully charge.
The second time I loaded it, it took roughly an hour to reach 75% capacity, while the remaining 15 % took all night to reach 100%.
It's normal?
How long does your watch take to reach 100% battery charge?
Thanks

that's not normal at all. if your watch is ok then the problem is with your charger - instead try a very safe output as an usb 2.0 / usb 3.0 from desktop or laptop, these have the cleanest 5V DC current - if the problem persists and the charge time exceeds 80 minutes get back to the seller for a replace