129Wh 36000mAh 100W Portable Laptop Power Bank with AC Outlet & 45W PD USB-C - External Battery Charger for MacBook, Dell, HP Laptops, Smartphones, iPad, Camera, Drones - Perfect for Travel, Camping & Emergency Power Backup

As someone who enjoys studying outdoors at the park or the beach, it's an absolute pain to find an outlet or deal with running to my car to use the inverter (and gas!) to charge my laptop/phone/headphones/etc. Enter this incredible laptop power bank.I did a stress test on it and it was an absolute beast! I charged my entire laptop's (H.P Spectre) battery from 0% to 100% through the AC port, while also using my laptop, charging my iphone and headphones at the same time. It charged all 3 devices very quickly and still had between 40-60% battery after doing all that.Pros:- Excellent capacity and definitely charged my laptop at full speed. (my laptop uses a 65W charger and this device supports up to 100W of output!)- Very hefty and durable. It certainly looks like it can take an impact. The a/c port is nicely covered with a silicone cap to prevent water/dirt/etc getting inside.- Built in fan for cooling the batteries and inverter while it's working.- Unlike other devices, it can supply power through all ports at the same time!- It can charge through the same USB-C power cord that you use to supply devices with. No need to carry an extra cable to charge the power bank!Room for improvement-- I didn't realize at first that you have to hold down the power button to active the AC port. Perhaps a second switch or rocker-type switch might make it more intuitive.- For future proofing, the manufacturer should consider adding more USB-C ports (currently only 1 port) as the USB-A standard (Currently has 3 USB-A ports) is slowly going away.Overall, I am incredibly impressed with this product. Not only is it hulk-like in its construction, it is also hulk-like in it's ability to charge my entire laptop nearly 2 times over. This makes it perfect for studying outdoors, camping, traveling, power outages, etc.This power bank is super helpful for the outdoors. I have a pretty buggy backyard and no outdoor outlet. Instead of getting one installed for hundreds of dollars, I got this power bank and it works so well. Now I have my bug zapper and even some USB-powered string lights for times that I'm entertaining or just having dinner outside. The battery lasts very long and I was extremely surprised about how fast it recharges. I have a portable power bank with a fraction of the amount of power storage that takes more than twice as long to charge. I was able to fully charge this in about 5 hours with the included USB C charger that even works to charge my phone at faster speeds. It is a little heavier than I expected but still very portable and not an issue. Also, there's a fan inside of it to prevent it from overheating in the hot summer weather which I'm sure helps the battery life and extends the life of the product itself. I can;t wait until I go on a road trip or camping to use this I'm sure it will be a game changer!Takes care of my need, charges my laptop with plenty left for phones and tablets, just don’t know how long it will last and that’s the reason for four star.Way nice, holds charge and powers my Xbox portably.The powerbank has been giving a good backup, I havent had a chance to fully deplete it or use the power outlet at Max Capacity but I have a heavy Laptop(Desktop Replacement) which it has been able to handle easy. I LOVE the fact that it has the power outlet on top instead of side as it gives me more leverage with loose connectors and wider adapters to be used easily. The on/off switch is a little hard and it takes a bit of a press to turn on but that tells me it wont power on while in a bag with other stuff, It comes with a pretty cool case which I use to add some extra cables. The type C power adapter it came with is pretty fast to charge it to full in decent time.So far I am happy with the purchase and will report back if I find any issues.