NB Air 5000mAh Ultra Lightweight and Slim Power Bank, USB-C Port for Phones, Smart Watches, Earbuds, Flashlights, and Headlamps

Very lightweight good charging speed fits in into a pocket have this in my EDC pack always need an extra charge. This is slim and functional good value for your dollar.

Nice thin and light battery. Does get pretty hot when charging a device but if you keep that in mind its a good trip item.

I have both the 5000mAh and the 10000mAh versions of this battery. I had a problem with the first 5000 unit, but it was quickly replaced. These are my go to travel backup power supply. They are used primarily for keeping my iPhone 17 charged when traveling to remote locations. They both worked well and didn’t disappoint. They are a little more money than other units I have looked at and have purchased, however I needed a brand that I could trust and was reliable. Nitecore fit the bill and they don’t disappoint. Have charged both units at over 20 times each with no issues. They are always ready even after sitting 30 days. A nice feature. Before traveling I always charge to make sure they are ready, and they always are. I use the 5000 for single and double day trips, and the 10000 for week long excursions. Their size is perfect as is their weight. Glad I have them.

Great Ultralight power bank for backpacking. Conserves weight and space with slim, simple design. I keep my phone on airplane mode in the back country with power saver on. I really only use it as a map and camera. This powerbank holds plenty of charge for a 3+ day trip for these needs. I like that I can charge my headlamp on it.

Currently experiencing issues with this power bank while charging iphone 15 plus. Charging stops and restarts repeatedly (shown via battery life indicator flashing on phone) after transferring around roughly 20%-25% of charge. In process of testing different cables to narrow down the problem. I use this same cable with a anker power bank on power delivery with no issues though. Will update once I narrow what's going on. Update: pulled out the original iphone cable, still happened. Also tested an Anker cable, same problem. Ran a test, was at 7% on phone, battery bank fully charged. Problem started at 25% on phone. Unplugged for 5 mins. Plugged back in, seems fine but then problem happened again at 40% charge on phone. Did the same thing, happened again at 51%. Not reliable for my needs, can't be sitting there baby sitting it. Back it goes unfortunately. Updated: Did a warranty exchange and replacement seems to be working just fine now.

This comes in a great size to take on the day. With modern phones having great battery life, pair this with a short charging cable, and this is a perfect pairing to make it back to the bedside charger at the end of the day.

After using this for a bit, I liked how light and slim it felt, but the performance didn’t match expectations. The biggest issue was charging reliability. It didn’t consistently charge my devices, and sometimes it would stop charging without any clear reason. That makes it hard to depend on, especially when you actually need backup power. Battery capacity also felt lower than expected. Even after a full charge, it didn’t provide as much power as I’ve seen from other 5000mAh power banks. Another downside is that it seems a bit sensitive with different devices and cables. It doesn’t always connect smoothly, which adds to the frustration. It’s possible I received a faulty product, but based on my experience, it wasn’t dependable enough for regular use. I ended up not relying on it and wouldn’t recommend it.

This is very compact and slim, hence easy to keep in a jacket pocket or belt pouch, for when you might need it.