10 Best 18650 Flashlights for Everyday Carry 2018

The 18650 lithium-ion battery is one of the most popular battery form factors in production. Its size and features make it ideal for electronic applications, like laptop and electronic car batteries, and even portable battery chargers. Thanks to advancements in both battery and flashlight tech it's gained tremendous ground as a new format for an EDC light as we've seen in new releases this year.

An 18650 (named for its 18mm diameter, 65mm length, and cylindrical shape) battery offers higher voltage, bigger capacity, and reusability, making it an ideal power source for flashlights. As of 2018, we're talking upwards of 3000 lumens in your pocket, more options for high color rendering, runtimes measured in weeks and months (yes, months), and no longer having to buy disposable batteries or chargers which is always good for the environment.

Below we've rounded up 10 of the best 18650 flashlights available so far this 2018. They're lights that make full use of the battery's capabilities but remain compact enough for everyday carry.