If you are into high-performance flashlights, DIY power walls, or electric vehicles (ironically), you have likely heard of the Panasonic NCR21700T.
(Note: Designers must account for the natural swelling of the cell—up to 10-15% expansion in diameter—over its lifetime when designing battery packs.) panasonic ncr21700t datasheet
The "T" in NCR21700T is often associated with cells that feature Panasonic’s high-power engineering, frequently seen in advanced electric vehicle packs Deep Dive: The Panasonic NCR21700T Datasheet – A
The Panasonic NCR21700T is a lithium-ion battery cell with the following characteristics: DIY power walls
Panasonic’s target applications, as implied by the NCR21700T datasheet, include: