KrisdoniaAC Outlet Portable Charger Battery Pack - 27000mAh 130W/110V Travel Power Bank with AC Outlet and 2X QC3.0 USB Ports and Type-C Port for MacBook, Laptop, Smartphone and More Devices

If you want to avoid trying to find wall plugs at the airport or just trying to have an emergency battery pack then this is the one for you. First thing about this is that I actually had to get a replacement unit. The first unit the power button was actually sinking in and getting stuck so make sure you press the power button a few times when you first get it. It should just be a small press and not go all the way into the unit. This unit is a bit on the heavy side so be aware of that when packing I would say this thing weights close to five pounds more or little less. It is pretty compact so it can fit in most backpacks. It comes with its own carrying bag as well that will protect it from external scratches. The outer layer is a pretty anti slide surface in my opinion so you are not going to be sliding this off of the desk or anything. This battery pack is pretty strong. I tried to power a monitor with it and it actually did for several minutes before running out of power although I would not recommend using this battery for that purpose but it is definitely a good thing to note about it. It has two ways of charging your laptop. From what I can tell it can charge your laptop via type C port or a wall plug that is provided. Be aware that with the type c port charging for the battery you will require a strong power brick to charge the battery. That being said it can actually charge a macbook via type c to type c which is pretty nice if you are trying to charge two laptops at the same time although the charging is extremely diminished doing this. There is an actual number gauge to show how much power is left in the battery which is really nice. I am not needing to guess how much percentage is left before it dies. The charging time for this device can be close to six hours or more from dead to full, but it provides you laptop with up to eight hours of battery life. I was able to power a laptop with no battery for about four hours alone on just this device alone. Be aware that this device does get warm while it is in usage so be careful not to have this device say under a blanket or inside the carrying case when you are using it as the carrying case is made of insulated material. There are also several USB ports to plug in your phone if you need to. You can charge your phone about six to seven times over before needing to recharge your device again. It does come with a type c cable and the charging cable you can plug into the wall. In order to power this device on you will need to push and hold the button for about two to three seconds before it starts working in the wall outlet part of the battery. If you are just charging your phone, all you need to do is press the power button and it should start charging immediately from what I can tell. It does support fast charging for phones from what I can tell which is nice. I really like the battery for charging my macbook or windows laptop. It really has a strong charging capability able to charge your phone and laptop at the same time. It has a rather nice carrying case to protect the battery from external damage. Finally, it allows you to not have to worry about finding that wall plug to charge your laptop while you are traveling.

So, needed a battery to operate my CPAP while one an international flight. The one my manufacturer offers is right at $500 for pretty much the same battery, this one was about $120 and it’s TSA approved. A single charge will last about 8 hrs for a small appliance, like. CPAP. Has many inputs for usb, usb-c and a U.S. plug. Great all around battery to operate appliances or charge your phones, iPad, etc.

A generally good concept, except for some shortcomings.Everything has a cost, not just in price but in tradeoffs. For anyone with an already heavy computer bag, this additional weight and bulk are going to be noticed immediately. If you want power, you pay for it in several dimensions. There is no free joule.Experience shows that it takes about 4-5 hours to charge a depleted battery pack. That is about twice as long as it will power a typical Thinkpad using the AC outlet, though you can use the AC outlet power while the battery pack is being charged. In one test I completely removed the OEM battery from the Thinkpad and the battery pack successfully powered the computer for 2.5 hours on AC OUT without dropping below the recommended 20 percent minimum charge level. Note that the 20 percent is an industry recommendation but not mentioned by the distributor/manufacturer.For a typical laptop that calls for 19-20 volts DC, a far better design solution would have been a DC OUT at 19 VDC. Some Kristonia power products evidently have this feature. Instead, with this device, you have to use AC OUT to run through your laptop AC/DC converter/adapter, and that involves enormous inefficiencies. You lose energy in the DC=> AC conversion within the battery pack, then again with the AC=>DC conversion at your laptop adapter, and the battery pack then has to run a fan to cools its conversion innards, resulting in not just power losses but a bit of noise that may not be welcome to everyone. That fan appears to stay on when supply AC power out, rather than only operating when the internal components require cooling. Another design shortcoming.The "user manual" is the size of a post-card, with type too small to be read normally.To the device distributor: Redesign this thing for a 19 VDC OUT port, and a set of DC tip/connectors for a versatile range of laptops, and you will have a 5-star winner.Nice points:The power status display is a plus.The carrying case is a nice bit of foofoo.None of the components run hot.The AC/DC external adapter meets US safety standards (though the battery pack unit doesn't)The watt-hours output is clearly marked on the battery pack case to shore up your arguments with the unschooled knuckledraggers at TSASpeaking of TSA, the advertised 99.9 watt-hours would mean this is as powerful a "spare battery" pack as TSA and airlines would normally allow for carry-on.If you know how to press buttons, you should be able to operate in pass-through mode, charging the battery pack from an AC source while also supplying power to the AC and DC out ports.Summary: the product is a limited success, reflecting some unfortunate engineering tradeoffs resulting in inefficient power supply and limited utility of the device.

My pack just died, so I thought I'd do a retrospective.TL;DR - With the exception of a capacity-bump to 160Wh, I'd probably still choose the same pack now.I picked this one based on 3 criteria:1. Capacity: It was just under the FAA 100Wh limit for air travel (this has since been increased to 160Wh for after-market battery packs)2. Features: passthru power, USB, USBC, and AC out (including a ground prong)3. The price: It was significantly less than all other packs with the same capacity and features.Work requires me to be operating a laptop while walking around / parked in strange corners of industrial spaces, often without access to facility power, for hours at a time. Outside of work, it's been on countless hikes and climbs.This pack was an absolute lifesaver on nearly every trip it took during its lifespan; working without fail for just over 2 years.2 years does seem like a premature failure - but I think the lifespan is not-a-dealbreaker for a battery packed used almost daily during that time. Completely reasonable to disagree on that point, but I'm looking forward to purchasing a replacement pack all the same.

Took this on our Safari to Africa and ended up powering up a whole show when we lost power at the safari resort. It was much appreciated by more than our family.

This little box packs a huge punch. I purchased this to run my dad's portable oxygen machine for a cross Canada plane ride.It worked the whole way, got a quick recharge in the Montreal Airport and lasted the whole way.I now plan on keeping in my truck for work/camping and would highly suggest this product to anyone. My family have now bought another one for our other vehicle as well to power the kids' toys

Product came with a nice carrying pouch and pretty good build quality. My primary reason for buying this was to power my ResMed AirMini CPAP machine for overnight camping without access to a power outlet during the night. Out of the box and charged up to 100% battery before first use, the pack powered a full 8 hours of sleep (my pressure is at 8.0) and brought the battery down to 39%. I'd call that a win!

It’s good if you want a short life battery. In the description, it’s said that it could charge a laptop and it actually did. The only thing is that the battery itself was going down way too fast while charging my laptop and it took almost half a day to charge it up again. So if you want to use it, you still need to be around electricity for it to be worth it. Also, the battery is quite heavy if you want to carry it along all day in a backpack. It’s heavier than my laptop