Sonicgrace S3 Pro Battery Head Strap for Meta Quest 3 and Quest 3S, 20W Fast Charging with Magnetic Battery Pack, Comfort VR Headset Strap Replacement Accessories. 20W Super-Fast Charging: Sonicgrace focuses on innovation in VR charging technology. The S3 Pro supports 20W fast charging for the Meta Quest 3 and Quest 3S, addressing concerns about battery life and long charging times. (According to our testing, the S3 Pro charges the Quest 3 from 0% to 100% in 2.5 hours, and the Quest 3S in 2 hours, whereas other 10W/12W battery straps take 3.5 to 4 hours to fully charge). Experience the ultimate convenience with magnetic charging. Simply connect and charge effortlessly while gaming, eliminating the hassle of multiple charging cables. The 8000mAh battery pack effectively extends your gaming time, providing an additional 125% battery life for the Quest 3 and 150% for the Quest 3S. Exceptional Comfort and Balance: The S3 Pro features soft memory foam padding, and the back pad is made of high-toughness soft silicone, fitting various head shapes. The head strap balances the weight of the device and battery pack, reducing pressure on the face and neck, and enhancing comfort and gaming experience.