Unless otherwise stated, all performance claims are based on theoretical performance.Battery life will decrease over the lifetime of the battery. Actual battery life may vary depending on product configuration, usage, operational conditions and power management settings. Test settings: WiFi flight mode, the display brightness set to 150 cd/m 2 (33%), Touch Pad. Battery life test configuration: Intel ® Core ™ i5-1135G7, 8 GB RAM, FHD 1W display, 512 GB PCIe ® 3.0 x4 SSD, 66 Whr. Battery tests conducted by ASUS on Apusing the MobileMark ® 2018 Office Productivity scenario.The 33 W battery is able to fast charge to a level of 60% in 39 minutes the higher-capacity 66 W battery takes 49 minutes to reach 60%.Charging time may vary +/- 10% due to System tolerance. After charging has reached 60% capacity, charging will return to normal. Power adapter with a minimum capacity of 66 W is required. Recharges the battery up to 60% within 39 minutes when the system is off or in standby mode.For example, a device with two 1 TB SSDs in a RAID 0 configuration will have 2 TB of available storage capacity, but with RAID 1 the available storage capacity will be 1 TB. As a result, the available storage capacity will be half of the combined physical storage capacity, as half the storage is used for backup copies. However, if the device is configured with RAID 1, two copies of the data are saved simultaneously in order to protect your data if one SSD fails. The available storage will equal the combined physical capacity of all the SSDs on the device. If RAID 0 is used, the system combines the capacity of all SSDs in order to enhance data-transfer speeds. The same device will offer differing levels of available storage depending on the chosen RAID level.Weight may vary according to configuration.