Some users on the Apple Support forums have reported that the issue with iPad Pros “dying” upon being charged can be averted by switching the device to Airplane Mode before attaching the Lightning Cable. Obviously, users need to remember to turn off Airplane Mode again later.
Airplane Mode can be activated in the Control Center by dragging up from the bottom of the screen, and tapping the airplane icon so it illuminates.
Because this fix seems to work, users have speculated that the backup to iCloud that happens automatically when power is connected and the unit is within range of Wi-Fi might be the culprit. However, it appears nobody has yet tried simply turning off iCloud backup within the iCloud section of the Settings app.
Keep tuned for more details as soon as they become apparent, and comment below if you know of any other fixes for this problem, or have encountered it yourself.