Xem Studiomeasured geometryLibrary › Power & cooling › Batteries ·
21700 lithium cell
What are the dimensions of a 21700 cell? · Standard part · basis: industry standard; nominal values
- length
- 70 mm
- width
- 21 mm
- height
- 21 mm
Notes
- Nominal Ø21 × 70 mm; real cells about Ø21.1–21.4 and 70.0–70.5 mm.
- Not interchangeable with 18650 holders.
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | List of battery sizes | web | CC BY-SA 4.0 (text) |
Xem scan
Not needed Published standard; the sheet is the geometry.
Plain text: sheet.txt · JSON: /api/geometry?object=21700-cell
Fits with
Questions
Are 21700 and 18650 holders interchangeable?
No: 21700 is Ø21.1–21.4 × 70.0–70.5 mm versus Ø18.5 × 65 for 18650.
What are 21700 cell dimensions?
Nominal Ø21 × 70 mm; design holders for Ø21.5 × 70.6.