Samsung.
This is Samsung's high power 18650 lithium battery, 3000mAh, 3.7V, 20A, INR18650 discharge, available online and offline.
INR18650 is a cylindrical ternary lithium battery. INR18650 I means lithium ion, N means nickel and R means round cylinder. 18650 represents a cylindrical battery with a diameter of 18 mm and a height of 65 mm. The rated voltage of a single cell is generally: 3.6 V or 3.7 V. The charging voltage is generally: 4.20 V (lithium cobalt oxide is 4.2 V-4.3 V). The minimum end-of-discharge voltage is generally: 2.75 V. A voltage lower than this voltage can easily lead to a significant reduction in battery capacity or even its disposal. INR18650 lithium ion battery has the advantages of light weight, large capacity and no memory effect, so it has been widely used - many digital devicess use lithium-ion batteries as power sources.
The 18650 lithium-ion battery is a standard lithium-ion battery model developed in Japan.
Among them, 18 means the diameter is 18 ± 0.3 mm, 65 means the length is 65 ± 0.5 mm, and 0 means cylindrical battery.
18650 lithium ion battery
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