What is the battery life and charging capability of the HP ProBook x360 435 G8?

The HP ProBook x360 435 G8 offers up to 17 hours of battery life with its HP Long Life 3-cell, 45 Wh Li-ion battery. It supports fast charging, reaching 50% charge in 30 minutes when the system is off or in standby mode, requiring a power adapter with a minimum capacity of 65 watts. Note that the battery is internal and not replaceable by the customer, but is serviceable by warranty. (Page 2)