By ned (11/08/2022)
I purchased this battery pack to use for charging my MacBook PRO 14".
Generally, 26,800 mAh is a limit set by airlines for travelling and you might get 80% of your laptop (similar to mine charged), so all manufacturers got their cheat sheet out and talk about hours and not the percentage which is nonsense because it depends on the intensity of the use, brightness of the monitor etc.
The speed that my Mac is charged using this device is quite reasonable, however, getting the unit charged back takes at least 6 hours using an 18 Watt charger. The USB C input port that is separate from the output one unit has a 45W limit so I can't use Apple's 98w charger to recharge it.
The thing that I dislike most is that the led charging indicator light goes off after 10-15 seconds so I can't monitor the charging progress