Yes, the iPad 8 supports 18 watts of fast charge. The iPad 8 has a built-in 3240mAh battery that can be charged with an 18W Rear Port adapter. Users can quickly charge by using 18W or higher power chargers to reduce charging time. However, it should be noted that the use of higher power chargers may lead to an increase in the heat generated by the device, so it is recommended to use an original charger or a certified charger.
The Ipad8 is not an 18w fast charge but a regular 12w charge