21700 vs 18650 Lithium-ion Battery Cells, Packs, and Technology
3:06
21700 vs 18650 Lithium-ion Battery Cells, Packs, and Technology
21700, 18650, 20700 and others simply refer to the physical size of the lithium-ion #battery cell. For 18650, it’s an 18 mm diameter x 65 mm length....
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