able
60w fast charge can charge 40w mobile phones, but do not often do so, it is best to use a matching charger, long-term use of such a mismatched charger, the current will be unstable, harm the battery, reduce the battery life, and even have the risk of explosion. It is recommended to use the original charger to charge the mobile phone, charging faster and safer.
A :60 watt fast charge can not charge 40 watt mobile phone. First of all, the model does not match and cannot be charged, followed by the 40 watt mobile phone charging power is only 40 watts, 60 watts is greater than the accepted power of the mobile phone, so it cannot be charged, otherwise it will damage the phone (battery).