Getting started with 18650 Li-Ion batteries
/ pawelspychalski
18650 Lithium-Ion batteries are the workhorse of modern consumer (and not only consumer) technology. If you have anything that is battery operated and there is a "Li-Ion" mark anywhere on it, probably it is powered by 18650 Li-Ion battery. Laptop batteries, cordless drills, cordless tools, e-cigarettes. All of them (probably) have 18650 cells inside.
18650 batteries can be used in RC hobby too. They are lighter than LiPo batteries and can contain more charge inside. 30% or more. But there is a price to pay: forget about high current usage on a drone racer. 30A is max what 18650 Li-Ion can do. And most of them die at 20A or even 10A if they were really cheap. But, with proper high current 18650, you can make your own long-range, endurance, battery and use it on an airplane or 7-inch drone.
In this video, I will just go with the basics of 18650 cells. Dimensions, protected / not protected difference, weight and so on. Expect more in the future!