Originally Posted by
Ypedal
They are the same cell format, laptops and power tools both use 18650's ... and yes, i've capacity tested lots of various brands, new and used, salvaged from laptop and power tool packs... laptop packs tend to be made with higher capacity / lower C rate cells.. while power tool packs are lower capacity / higher C rate ( lower internal resistance )..
I built a few smaller packs for low powered ebike projects, they worked, but during that time i was also playing with RC lipo and quickly abandonned the the used 18650's for new RC pouch cells... less time building.. more time riding.
what's your point ?
Just curious ...
I'm interested in your (Ypedal's) safety rating of various battery types:
Personally, I would rate:
1. RC Lipo as most hazardous (Numerous fires, "explosions" etc.)
2. SLA - Lead Acid (explosion danger from short or hydrogen gas ... acid leakage etc. )
3. High output 18650 cells
4. Laptop 18650 cells, "replacement" packs, from "unknown" manufacturers
5. LiFePO4
6. Laptop 18650 cells, from reputable manufacturers, as safest (except some 20th century builds and 2006 contaminated Sony cells)