The charger of iPad2018 is 12W, when using the iPad charger to charge the iPhone, although the iPad charging can provide 2.1A current, but the iPhone can only accept the current, so the charging time is the same as the iPhone charger.
< br >
If you use the iPhone charger to charge the iPad, because the charger can only provide 1A current, the entire charging time will be 2.1 times the original. iPad and iPhone charger design is different for a reason, because the iPhone battery capacity is relatively small, charging will be relatively fast, the power of the charger is naturally lower. Although high-power charging can shorten the full time, it will bring greater heat, and high temperature is the main culprit for shortening the life of lithium batteries
It's a 12w charger
iPad2018 (sixth generation) can use 12W charger, also buy a 5V2.4A charger is OK, it does not support PD fast charge. Trustworthy brand Green link PD29W charger, product win are good.
Charging power, 10w national version 12w