INIUPower Bank, 20000mAh 65W Ultra Compact USB C Laptop & Phone Portable Charger, Fast Charging Flight Cruise Ship Travel Essential Battery Pack for College Students Travelers Teen Boys Girls, Red

I purchased several of these to power some outdoor cameras that aren't battery powered. There were a few things I wanted to solve:* I needed a compact dual USB-C charging including at least one pass-through capable port. Passthrough charging allows you to charge up the battery pack while still powering some other device at the same time. Most power banks do not support this. This one does.* I wanted something that I could charge up quickly when needed. This also supports fast charging.* I needed a pack with both charging ports on the front or back of the unit (not on the side). Check.* I wanted something that had the highest amount of stored energy possible while being rectangular and highly compact.* I needed a bank that could handle reasonable outdoor spring/fall temperatures. Though, I didn't need it to be weather proof, since it is being used in a sheltered area.This is the most compact 20,000 mAh power bank I've been able to find to date that has pass-through charging. They've been working great for over a month now in temperatures ranging from 40 F - 87 F.I love the charging protections this has built in, which makes it much safer to use.The fast charging output allows for up to 100 W total of power over USB-C.The input fast charging (charging the bank's battery) allows for up to 45 W, changing the bank from 0% to 100% in under 2 hours.There is a large power display that shows the percentage of stored battery power left. It stays on until there isn't any power draw or the battery is depleted.The rest of the power bank has a good grippy coating that means you'll be less likely to drop it.There are two USB-C ports, one allows for output only, the other allows for input and output (so you could use pass-through charging or charge a second USB-C device). There is also one USB-A port that is only for output. Each port is clearly labeled with the maximum charging output as well as whether the port allows for input or output.The construction feels solid and well-built. The ports grip firmly and don't move.So far, after about a month and a half of use, I would happily recommend this power bank to anyone who doesn't need a completely weatherproof indoor/outdoor power bank.

Size & Portability:While the power bank is slightly larger and heavier than some ultra-portable models, this is a reasonable trade-off for its substantial capacity. It remains compact enough to fit into a bag or backpack, making it convenient for travel or daily use. The added heft is a small price to pay for the extended power it provides.Ease of Use:The power bank features a user-friendly design with clearly labeled ports and a digital display that shows the remaining battery percentage. This allows for easy monitoring of the power bank’s status. Its straightforward operation ensures that even those less tech-savvy can use it without hassle.Charging Speed:Equipped with fast-charging capabilities, this power bank efficiently charges both itself and connected devices. Users have reported that it can charge a smartphone to over 60% in under an hour, which is impressive for a device of its class. This rapid charging is particularly beneficial when time is of the essence.Value for Money:Considering its performance and features, the power bank offers excellent value for money. Its ability to charge multiple devices quickly and maintain power over extended periods makes it a cost-effective solution for those needing reliable portable power.Looks & Design:The power bank boasts a sleek and modern design with a premium finish. Its aesthetic appeal is complemented by practical features like multiple USB ports and a digital display. The build quality feels robust, suggesting durability over time.Final Thoughts:This power bank stands out for its combination of capacity, charging speed, and user-friendly features. It’s particularly well-suited for powering devices like wireless back massagers and heating pads, where consistent and prolonged power is essential. Its performance exceeds expectations, making it a reliable choice for anyone in need of dependable portable power.

I have purchased several power packs in the past but none of them can keep up with this one. I like the digital display and it recharges around one volt every two minute. I purchased this to power a water fountain which I also baugh on Amazon. The two power packs I used one only lasted for about six hours before it died the other lasted a little longer but I have to charge them overnight for a full charge. I run this power pack from around eight o'clock in the morning until after ten o'clock at night and the display shows eighty six percent charge left. To be fair it is twice the thickness of the others but I paid about the same for all of them. I purchased a second one just recently for another water fountain and I keep them in a zip lock bag. Both of them stay out for two days before I bring them in to charge. I use my old battery packs until thies are fully charged and then start over again for another two days. I'm sure that if others are having difficulties it must have been a bad batch. Just to follow up on my experience. I just tested the power pack for an important operational ability. THE POWER PACK HAS PASS THROUGH! This means that you can power a device while charging the battery at the same time. I look forward to using a solar panel to charge the battery during the day and if everything works as well as expected I will be able to leave the battery connected to the fountain pump indefinitely.