I purchased this item to use mostly for my C-Pac when I go camping or for use during a power outage. I do not use the heater on my C-Pac machine. First night the Anker Powerhouse 535 has 73% capacity left, second night was down to 43%, third night was down to 18%. I charged the Powerhouse 535 back to 100% in less than 4 hours. I am totally impressed with the Anker Powerhouse 535. I love how simple the design is and the portability of the Powerhouse 535.

This power bank is awesome! Very intuitive design with an excellent screen read out on the front of the device. This power bank has plenty of power for my off-grid cabin visits. Pair this device with the 100W solar array and you can recharge in about 4 hours. Free renewable energy!

Bought this to use as power for CPAP machine while boondocking. Very pleased as it only used <25% battery per night, Airsense 11 with humidity and heated tubing turned off. I ran it for 3 nights and still had 30% charge left. Used the supplied 12V charger to bring it back to 100% in about 3.5 hours of driving.

Great packaging-double boxed well and thought out with foam inserts. The 535 POWERHOUSE is flawlessly made & very intuitive -except for the power save switch. Charged up with wall outlet in two and a half hours. I did not use an additional UBC cord as I was not u in a rush. Also arrived sooner than I expected. Good service. I have already recommended to an out of state friend to buy one.

Build quality and looks are what you see first with this product. I purchased as a back up for simple things around the house and for when I'm camping off grid to help spare the camper battery banks for more vital needs like heat and AC. This little pack is small but mighty. Powers the outdoor lights and recharges the phones for a long weekend away. And still has plenty of power left to keep going. Anker customer service has also been top notch. They helped with shipping issues and worked to make sure I was happy and impacted as little as possible. I'll definitely be buying again from them.

Living in a semi-rural area, power outages can be an issue during certain times of the year, so I purchased this for emergency use. I have come to trust Anker for their quality control and sturdy build. I don't have to worry about their products failing catastrophically and causing a fire or other damage like other aftermarket products that are cheaply made. PowerHouse 535 ------------------------- Pros: -Sturdy build, good price, lightweight -Easy to understand display -Plenty of ports for use -Plenty of charging options Neutral: -Not a dig to Anker, but in the end it's still a battery. So it will slowly become less efficient til finally being unusable Cons: - No negatives at this time. I recently purchased so haven't had the opportunity to test it a whole lot Final Thoughts: -Keep in mind, I purchased this for emergency power outage use. It is also marketed towards camping and outdoor activities, which I think it would do well at considering its size and no noise pollution. -Get you one if you are in the market and the capacity fits your needs, especially while they are going through all the holiday sales.

I bought this for camping, but have ended up using it around the house where there isn't a convenient outlet. It "just works" to give you power where you need it. I deducted one star for the confusion on what I thought was an included USB-C charger. There is no USB-C AC adapter in the box, the advertised "fastest charging" method is via a USB-C charger you supply plus the AC charger they supply.

This is my introduction to small power station. Working in video production brings me to locations outside where there's no convenient power and a generator can be noisy. This is a great tool for being able to charge my batteries and if need be plug in LED lights to get longer running times. I also like that it uses LifoPo4 batteries and is quick to charge.

I only gave it 4 stars for one reason. It says in the description and specs it can power a CPAP machine. The reason to knock off one star is the noise the unit makes when being utilized as a battery backup for the CPAP machine. It kinda growls when the CPAP is plugged in and I'm trying to sleep. Otherwise, it is a very good battery backup and portable power device.

This thing packs a punch! It has lots of power options including 4 110v outlets, which is more than many other devices I checked out. With Anker's reputation, I expect that it will last a long time. I also got the carrying case, a nice addition. It's built well and will protect the PH on trips.