This is the second Omnicharge powerbank I have purchased. I own both the AC plug model and now the type C. I am usually traveling or at work with free time on my hands (sort of an on call problem solver) so I usually have time to mess around with my laptop until I get a call. This Omnicharge C powerbank so far works flawlessly. One side is a 100w charger, the other a 60w. I have a Razer 17 that allows for up to 100w type C charging. When I plug in the power bank, the charger automatically switches the voltage to 20v, then adjusts the wattage to the proper level depending on the tasks, which is really cool. Sometimes it is charging in the low 70 to 80 watts when just doing internet or typing, but jumps up to about 90-95 watts with more intensive tasks like gaming. Doesn't quite hit 100w, but I am assuming this is just the laptop power draw and nothing to do with the bank itself. So rather than pumping full wattage constantly into the laptop, it seems to auto adjust when the tasks change. That's pretty cool. While there are cheaper powerbanks out there, they often lack features or adjustable settings. There are much, much more expensive ones, looking at you Sherpa, but they offer little extra as far as features go. I found the Omnicharge brand to be the best mix of features and price.