21700 batteries are rechargeable lithium-ion cells that are used to power various devices like flashlights and vaping accessories. Similar to other lithium-ion cells, the 21700 battery is named after their dimensions to identify size and compatibility quickly. The exact size is 21mm in diameter and 70mm in length.

Files (6)

License: CC - Attribution Learn more
21700 automobile battery cell electric-vehicle lithium-ion