It's okay. The 67w fast charge can be charged overnight, but it is not recommended for long-term use. Now mobile phones and most of the tablet computers and other devices have overcharge protection, if you use the charger continuously plugged in the plug board, one night is actually no problem, it will automatically power off after full, but long-term use, the loss of the battery and charger is relatively high, not recommended for long-term use, occasionally once or twice it does not matter.