It can still be used. In general, under normal circumstances, the 35w charger to charge the Apple phone will not hurt the phone battery. Under normal circumstances, the 35 watt charger is a charger that supports the fast charge agreement, the maximum output power is 35 watts, the old Apple mobile phone does not support the fast charge agreement, only about 10 watts of power charging, the new mobile phone that supports the fast charge agreement, can support 18 watts of fast charge. So you can use the 35w charger to charge the iPhone without damaging the battery.
Can be used
The iPhone EXR comes standard with a 5WUSB power adapter. But iPhone EXR support fast charge, it is recommended to use 18w, Apple xr fast charge maximum support 61w, can be used by iPhone EXR support fast charge Apple official charger has Apple18W, 29W, 30W, 61W and so on.