Children phone watch charge less and less, what happened?
I think this time you should check whether there is a power failure, if there is no power failure, then it should also be the charger itself, may be the charger is broken, there will be a mobile phone charging, but the amount of charging is less and less, this time you should change a charger to take a look.
It's a blackout. It's out of order. We can repair it