As friends who have used portable LED flashlights or wholesale customized flashlights know, 18650 lithium batteries are very common for glare flashlights at present. Why do more and more manufacturers of glare flashlights choose this battery now

 

At present, the mainstream strong light flashlight light source generally uses LED lamp beads. In the past decade, LED chip technology has been developed by leaps and bounds, and its supporting electric power has also been increasing. With the increase of LED lamp bead power, LED strong light rechargeable flashlight requires the rechargeable lithium battery to make corresponding improvement in energy density and discharge voltage. The 18650 battery was originally designed for notebook computers. The 18650 lithium battery not only has high energy density, no memory effect, but also is economical and environmentally friendly. The current provided is also very suitable for the use of strong light flashlights, and is also the most mature battery solution at present.

So that's why more and more flashlight manufacturers use 18650 lithium batteries when producing flashlights. In addition to 18650 lithium batteries, 16340 and CR123A are also very popular rechargeable lithium batteries.