Agreed. The OnePlus phone's wireless fast charge and Xiaomi's can be used together. Because the general millet wireless charger is compatible with other devices, it can be used. In general, the phone power is maintained between 65% and 75% is the best, but this is only the ideal state, of course, can be appropriate to expand this range, as far as possible to the phone store power control between 40% and 70%.
I can. Oneplus mobile phone and millet mobile phone 30 watt fast charge universal, millet mobile phone charger output current and voltage are 5v\/1A, Oneplus can use millet fast charge head, because the charging protocol of the two chargers can be compatible with each other, not affected.
Other mobile phones can be universal if they support fast charge mode. It can be used if not supported, but the phone will heat up and the battery life will be reduced