I used mine for half year, daily, then I put it away, and used it just a few times at home. Then 1 year later, it doesn’t hold any charge. Maybe mine is defect. I didn’t send it for repair, just left it on the shelf. I have older cheaper power banks that so use for many years daily. Never gave me any problems & would buy again.
This one, I wouldn’t buy again. 1 star.