Update 7th April 2020: Shortly after the leaked renders, OnePlus has confirmed that the OnePlus 8 Series will feature wireless charging and will be called Warp Charge 30 Wireless. It has a peak output of up to 30W and will charge the OnePlus 8 Series up to 50% in half an hour.
OnePlus says that to achieve the 30W wireless speeds, they have combined the industry’s first isolated charge pump with Warp wireless direct charging architecture which ensures a 97% charge efficiency and reduces heat. The wireless charger’s current and voltage is controlled by a customized chip and the chip enables real-time communication between the charger and the phone.
Apart from this, Warp Charge 30 Wireless is also compatible with Qi wireless chargers at 5W speeds and you can also get 10W speeds with a 10W EPP standard charger. The company has shared more details about its technology in the forum.