Panasonic Ncr21700t Datasheet

Power banks, home energy storage, and industrial backup systems.

First, a bit of trivia. This cell is famously known as the "Tesla cell." When Tesla moved from 18650s to 21700s for the Model 3, Panasonic was their primary partner. While Tesla uses a slightly modified chemistry (the "Tesla-specific" variant), the off-the-shelf is the closest you can get to automotive-grade power.

Tesla’s 2170 cells (used in Model 3) are similar but not identical. The NCR21700T is the commercial version, while Tesla uses a proprietary formulation with slightly higher nickel content. panasonic ncr21700t datasheet

and voltage for a specific series/parallel (S/P) configuration.

Do not charge below 0°C. Lithium plating occurs, causing internal short circuits. Also, do not float charge – terminate when current drops to <100 mA. Power banks, home energy storage, and industrial backup

Used in residential solar battery banks and off-grid power stations due to its long shelf-life and density.

In the consumer market, you won't find an official Panasonic-branded PDF for the "NCR21700T." This is because these cells were primarily manufactured at the Tesla/Panasonic Gigafactory for exclusive use in Tesla battery packs. Most "NCR21700T" cells found in the wild are actually "pulls"—cells salvaged from Tesla modules—or gray-market units. Core Technical Specifications While Tesla uses a slightly modified chemistry (the

The table below represents the most consistent technical data gathered from multiple industry sources and independent verified reports. While slight variations exist, particularly regarding capacity and discharge ratings, the following values represent the authoritative consensus.

The most plausible explanation is that while Panasonic does manufacture cells for Tesla under the 21700 form factor, the NCR21700T sold to consumers is a than the cells Tesla integrates into its vehicle packs. As one vendor states: “Tesla spec Panasonic 21700 batteries are of a higher spec than our Panasonic NCR21700T batteries. Tesla spec has a max discharge of 30 A, ours only has a max discharge of 10 A“.

The “NCR“ prefix in the model name is an important technical indicator. NCR stands for , a cathode chemistry that combines lithium‑nickel‑cobalt‑aluminum (NCA) or lithium‑nickel‑cobalt‑manganese (NCM) formulations. This chemistry delivers: