>>2014713>>2014720Me again (sorry i'm retarded) so i've juste realized the numbers are like the 18650/21700 and mean something.
So the OG lezyne 821659 which means 8.2mm x 16mm x 59mm. I've found a "900mAh 801558 3.7V" and a "3.7V 800mAH 801660" for less than $10, i think i'll take the risk.
Bonus to apologise for my retardation:
Picrel mounts <$2.50 are perfect for mounting flashlights to the handlebars/helmet mount for night DH/Enduro/XC riding. I use the cheap Sofirn IF22A and the IF25A. Flashlights, not being unitaskers, have the advantage of easily changing the battery (both take 21700 or 18650 with a collar) mid ride (or if the battery doesn't work anymore) in case you need more juice.