Anker Powerhouse 90, 87.6Wh Portable Charger with 100W AC Outlet/45W USB-C Power Delivery Port, Portable Power Bank for iPhone, Samsung Galaxy, iPad, MacBook, and More

One of the best if not the best portable chargers I've got.

Do not buy. I got it so my child could take the SAT. (Now you have to bring an iPad or a laptop etc and you cannot charge it there) This Powerball won’t even charge. We have never used it. Apparently, I’m not the only one. Wished I had known that before I bought it. Unfortunately, it’s too late for me to return it.

I work in an office that prohibits plugging any item into our laptops, docks, or power strips. I use mine to power a fan all day, with periodic charging of my phone and watch as needed. I only have to recharge every 3rd day. Superb

Runs out of juice very quickly. very disappointed.

Anker makes bricks... I got 1 of these and it didn't charge, they sent me another one with the same issue. I wont be going to Anker for power stations... I love their other stuff but not batteries... never again.

Many may find it a little on the heavy side but you don't get current and/or voltage without weight. It more than meets my needs.

I bought one of these reduced on a special offer from $200 to $130. My first suspicion that something was not right came when I found that one of the cords that the instruction sheet mentioned was not in the box. There should have been a USB C to USB 3.0 type A for charging a device from the unit, and a USB C to USB C for recharging the unit itself. The latter was missing, and as I didn't have a USB C to USB C, I tried charging it using the former and another USB wall wart charger that I had. This charger can deliver 5 volts at 4 amps, which, per the instruction sheet (5 volt charging needs 3 amps minimum), should have worked.It didn't work: the LEDs on the power button blinked in a sequence twice, and then did nothing. The unit would not switch on, and the flashlight button was also unresponsive. I decided to buy a USB C to USB C cable and try that before going to the hassle of returning this unit. That did enable me to charge it using the supplied USB C wall wart, and the thing now works.However, three alarm bells still remain. While I was troubleshooting this, I found a page on Anker's support site stating that these units ship from the factory with a 60-70% charge in them. This one arrived totally flat. Secondly, the instruction sheet was in Japanese primarily, with minimal English translations under each section. Finally, the sticker on the box containing what I suspect is the serial number had another sticker over the top of it, with just a barcode. There is no serial number on the unit itself.For all these reasons, I strongly suspect that this is not a new and genuine unit: either it's a fake knockoff, or, more likely, a genuine, but used and refurbished one, with whoever did the refurbishing forgetting to put a USB C to USB C cord in the box. Still, it does now work, and will just about charge my laptop from 20% to full on a single charge, or give me 2-3 full cellphone charges.Note - this unit is significantly bulky and heavy (about the size of a typical hardback book, and weighs 7-8lb); OK if you're putting it into a briefcase, rollaboard, or carry-on, but not practical for carrying in a purse or pocket.

First off this is a nice power bank that can provide 100W over USB-C and also has a built in AC inverter. It is fairly heavy for the battery capacity. It also gets fairly warm when using the AC inverter. If you are looking for a portable power source to keep your laptop or other USB device running all day, this may be a great option. The inclusion of a compact 45W charging power supply is a great bonus.Unfortunately, I purchased this to use with my Resmed AirMini CPAP. The notes in the listing do not recommend using this power source for a CPAP, but I assumed this was because they wanted you to purchase a larger power supply. The listing is even confusing as it lists a 3-4 hour runtime for a CPAP. This would assume your CPAP requires ~20-30W to run. The AirMini only requires about 7W on average, therefore this Powerbank should have provided 10-12 hours of runtime using the AC inverter. That would have been plenty for a night of camping. Unfortunately this powerbank has an energy saving sleep feature. The AC power source will automatically stop after 1 hour if the AC load is less then 8W. This meant that every hour, I woke up to find my CPAP turned off and I had to turn the AC power back on. When it was powered on, the powerbank powered the AirMini CPAP perfectly. Unfortunately turning off every hour is a non-starter for use. What's worse is this power saving "feature" is not listed anywhere in the Amazon listing.I'm sure this is a great powerbank for the many other usages, but be aware if you are purchasing this for long duration operation of low power AC electronics, you should look somewhere else. It is definitely the incorrect choice for powering a Resmed Airmini, unless you don't plan to sleep for more then an hour at a time.