I use these flashlights a lot while camping and recharge them with my portable power pack as needed... which was a lot on my last camping trip. I realized that they took a VERY common battery (18650 button top) and was able to find 3050mAh replacement batteries for only a few dollars apiece. With the original battery my flashlight lasted a little over an hour (on full power), with the 3050mAh battery it lasted for over FIVE HOURS of full power... granted the test wasn't 100% fair because the original batteries weren't new and I was comparing them with brand new batteries, but all the batteries were fully charged for the test.

While camping, I found the "focus" feature very useful when trying to point something out in the distance. You can focus the beam VERY directly on something (like a tent) in the distance which you're trying to point out to something, or to a building with restrooms when giving someone directions. I have dropped both flashlights countless times and they haven't had any issues, they are quite durable.

Cons? The OEM battery life was "meh", and the charge port cover is easy to lose (one of mine is missing). Missing the charge port cover hasn't been an issue so far, but I also avoid submerging them in water.

These flashlight really deliver the punch needed for tight spaces or inspecting attics and crawlspaces easily. The small size makes carrying the lights practical and have the ability to really light things up in small hard to see and reach spaces. Great value and long lasting between charges. Would buy again and recommend. A+

I live in Northwest Washington state where the winter nights are long. I bought these flashlights primarily to use when walking my dog after dark. This light is perfect for emergency use as it has three light settings Bright, Medium Bright and Flashing. I use the bright setting when out walking at night and the medium bright setting for power outages or working on the car at night. This flashlight is rechargeable via USB and the charge lasts a good long time. I haven't run one from full to dead but it will last several hours on the lower brightness setting. Recharging takes a couple of hours from nearly depleted to a full charge. I just plug it in while I am watching TV in the evening or even overnight. The battery does not seem to get hot so I am not too worried about fire hazard.
I purchased a 2 pack of the lights for about $29 and keep one in my coat pocket and one in my car. Since I use one more than the other, I always swap the newly charged flashlight into the car to ensure it has the fullest charge possible. That said, the light always has plenty of juice even after sitting unused for a month or more.
The lights are water resistant with a rubber stopper that covers the USB port. I have lost one of those but am not too worried because even with the Washington rains, it really isn't really exposed to the weather. The aluminum case seems solid enough, but I have not dropped one to test it's durability. However, I suspect the LED would fail before the case did.
The flashlight is just under 5 inches long and about 1 inch in diameter. The weight is a comfortable 4.5 ounces, so it doesn't wear you out even with extended use.
These flashlights aren't perfect but pretty darned close. Close enough to get 5 stars and my highest possible recommendation.

This flashlight is small enough to fit comfortably in my pocket, and the battery seems to last a fair amount of time. The light is very bright.

These lights are easy to charge, gives off very bright light to see with ... they do tend to heat up if ur using them for any length of time ... very hot