help me identify this 21700 cell

Batteries and Chargers Rechargeable Batteries
1

hello, i have this 21700 cell, the seller said it’s tesla, but i’m not sure about this

there is no marking or anything printed on the cell


its capacity is about 4600-4700 mah, and IR is about 15-17mR

thanks for your help
ps: the 3 lines at the botton is not caused by me

2

LG M50?

3

i dont think so, the capacity is quite low for 5000mah cell, and the bottom doesn’t look similar to LG M50

4

Tesla

5

I confirm that these are the same cells used by Tesla (Sanyo NCR21700A) but it is with the normal positive pole flat (no-recessed), we recognize it to the 3 “parallel scratches” on the negative pole, tell me where you did you buy them?

Look here for proof, these are NCR21700A: https://www.ebay.com/itm/X2-Tesla-Model-3-Battery-2170-Cell-21700-battery/113690781599?hash=item1a787fa79f:g:iY8AAOSwuHdcj9GC

6

@mrheosuper, check if the cells are made of steel using a magnet.

If they are very strongly attracted, then they aren’t.

If not, you have Tesla cells.

7

That's rather strange, the cells I've seen from direct Tesla packs in the 21700 format all have concave positive head, not the standard 3 leg you have shown.

8

Normal is a new technic that can weld standard contacts (raised) with a nickel/laser system. Look by clicking on the link below (photo 5 to 6):