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I'm not sure about Saft in particular; with how ridiculously bad their tech is I'm convinced they are a French government jobs program, and nobody I know has ev

I'm not sure about Saft in particular; with how ridiculously bad their tech is I'm convinced they are a French government jobs program, and nobody I know has ever voluntarily used their cells (except years ago for non-rechargeable.) For reference, their highest energy density Li-Ion cell is 169 Wh/kg. I'm not sure how they managed to be that bad; I just literally taped a rock (14g) to the cheapest battery in my apartment (45.8g, the $2.49 NCR18650PF) and the combined energy density of my new Rock-Lithium-Ion Battery is 170 Wh/kg, better than that of Saft's highest energy density rechargeable cell. But yes; if you want newer battery technology direct from the manufacturer, you'll probably be flat-out ignored even if you're inquiring at a medium-large scale. The way to do it is to hunt around for semi-reputable resellers, who will usually give you what you want at an acceptable price.

mcguire 10y ago
My understanding is that the reselling behavior is the bane of the e-cigarette market. 18650's that you can get from most resellers may have good specs printed on them, but the battery won't necessarily have anything to do with the wrapper. Edit: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/#subs https://www.e-cigarette-forum.com/forum/blog-entry/list-of-b...
Keyframe 10y ago
That's quite insightful. I know next to nothing about that industry and/or battery (modern) tech. I know people have always said Saft was a reputable battery company (around motorised speciality vehicles/grip for film industry). I have no idea why, considering what you've just said.
- extrapickles 10y ago
  Its likely Saft optimizes for rough environments rather than energy density. Things like stronger casings, more insulation between anode/cathode, wider temperature ranges are more useful to some applications than energy density. I've primarily seen them used for industrial/military applications.
  - Keyframe 10y ago
    You're probably right. Just looking at their site and applications they're touting makes it sound legit.

mcguire 10y ago

My understanding is that the reselling behavior is the bane of the e-cigarette market. 18650's that you can get from most resellers may have good specs printed on them, but the battery won't necessarily have anything to do with the wrapper. Edit: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/#subs https://www.e-cigarette-forum.com/forum/blog-entry/list-of-b...

Keyframe 10y ago

That's quite insightful. I know next to nothing about that industry and/or battery (modern) tech. I know people have always said Saft was a reputable battery company (around motorised speciality vehicles/grip for film industry). I have no idea why, considering what you've just said.

extrapickles 10y ago
Its likely Saft optimizes for rough environments rather than energy density. Things like stronger casings, more insulation between anode/cathode, wider temperature ranges are more useful to some applications than energy density. I've primarily seen them used for industrial/military applications.
- Keyframe 10y ago
  You're probably right. Just looking at their site and applications they're touting makes it sound legit.