Review on ⚡ Optimized Portable Power Supply/Charger for Microsoft Surface Pro X 7 3 4 5 6 & Surface Book 1 2 & Surface Go & Surface Laptop 4 1 2 3, supporting 65W 15V 4A 1706 1950, 44W 15V 2.58A 1800, and 36W 12V 2.58A 1625 by Sedric Hood

Edit: I think I just got a lemon on the first try. I've been using a replacement for a couple of weeks which was sent to me by excellent customer care in response to the first review below (didn't even ask for a replacement they just offered) and it works great. I just leave it connected to my desktop for a couple of weeks and it shows no signs of slowing down. that does not work. If it was plugged into a surge protector that also had a landline phone, a second laptop, and a TV connected to it; didn't seem excessive to me, and nothing else on the surge protector stopped working. The power supply was very hot immediately after this audible pop; I thought it should cool down so I tested it again three days later but it still doesn't work. I can only conclude that I either received a defective device or this is not a very good product.