In Use:

I have been using the Nano Torch Twist for a few weeks now and it is definitely a very well made, reliable flashlight. The combination of the swivel head and magnetic base are proving to be very useful to me. I have attached it to the underside of my car's hood and in one wheel well, and then I can aim the beam of light at exactly the component I am trying to work on. Carrying it around the house or in the yard at night has me convinced it would be a great choice for camping or emergency situations, as it is very small, very bright, and the battery lasts surprisingly long.

If you recall the bullet point from the beginning of the review, KeySmart claims it would last 7 hours on the lowest brightness level. It turns out that number is not very accurate, and I am very pleased at this mistake. The chart below details my findings for battery duration in the three lighting modes, as well as hwo long it takes to recharge the battery using a typical USB port on a PC, as well as while using a 2A wall charger from a smartphone.



What we see is that perhaps KeySmart was referring to battery life on the highest setting, not the lowest, as I was able to get 7-1/2 hours of continuous run time on the brightest setting. And even though the light turned off on its own after 7-1/2 hours at full brightness, I was able to turn it back on again (although now much dimmer) and get another half hour of run time. Letting the light run continuously at the lowest setting shows that a stop watch isn't the best measuring device, and a calendar is more appropriate. It ran for 58 straight hours, or almost 2-1/2 days! On many weekend camping trips I am worried about flashlights not being able to get us through the two nights, especially with a son who loves to play with the light more than he uses it out of necessity. With the Nano Torch Twist this wouldn't be much of a concern, because on a full charge you could get through the whole weekend on the lowest setting (which is still plenty bright) with power to spare.

The chart also shows us that although a charger is not included, what you decide to use to charge the battery will obviously matter. A higher power wall charger took it from empty to full in 3 hours, while a USB port on the front of my PC did the same in 4-1/2 hours.