2.9K views · 26 reactions | 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. 21700 is 21 mm x 70 mm. While the explanation is simple, the difference is profound. #tools #construction #technology | Pro Tool Reviews | Facebook
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2.9K views · 26 reactions | 21700, 18650, 20700 and others simply re…
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FacebookPro Tool Reviews
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