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| LG Battery BS |
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| Siwastaja:
18650 cells are internal parts of electronic devices only to be bought and assembled by professional designers and manufacturers. They can't be compared to NiMH, alkaline, etc. batteries sold to general public. Abuse of such cells in direct consumer applications is common, and acceptable IMHO, because I'm all for "do whatever you want", but there is a problem if people do not know they are abusing a product for a non-intended purpose. This isn't good. You need to do it on purpose, not by accident. "Protected 18650" is an afterthought concept, and because they are originally designed for a fairly small "hobbyist" segment, the quality varies. The form factor is limiting; it cannot grow in size much, or it won't fit. Because the protection PCB requires access to both electrodes, they must run an unprotected metal strip along the side of the cell. The quality of isolation of this strip varies. 18650 cells do incorporate PTC self-resetting fuses in the cap construction, but power tool cells naturally have higher threshold. A mid-ohmic "almost short", or overload in general, is very problematic because it bypasses such fusing but can still cause damage. |
| m98:
--- Quote from: Siwastaja on February 02, 2020, 12:12:25 pm ---18650 cells are internal parts of electronic devices only to be bought and assembled by professional designers and manufacturers. They can't be compared to NiMH, alkaline, etc. batteries sold to general public. --- End quote --- :bullshit: Stop justifying their fearmongering tactics. If a customer was to accidentally short out a car battery, the bang is going to be bigger than the best a 18650 cell ever could accomplish. Are we now going to weld shut engine covers? For safety, of course! So there are currently about 100 e-cigs-related fire incidents per year in the US, with the majority resulting in no or moderate injury. More people are killed by lightning strikes in the US than severely injured by an e-cig catching fire. |
| nctnico:
--- Quote from: m98 on February 02, 2020, 02:17:38 pm --- --- Quote from: Siwastaja on February 02, 2020, 12:12:25 pm ---18650 cells are internal parts of electronic devices only to be bought and assembled by professional designers and manufacturers. They can't be compared to NiMH, alkaline, etc. batteries sold to general public. --- End quote --- :bullshit: Stop justifying their fearmongering tactics. If a customer was to accidentally short out a car battery, the bang is going to be bigger than the best a 18650 cell ever could accomplish. Are we now going to weld shut engine covers? For safety, of course! --- End quote --- I'd like to see you put a car battery in your back pocket. Besides that car batteries are covered by plastic shields nowadays. |
| Cyberdragon:
--- Quote from: Siwastaja on February 02, 2020, 12:12:25 pm ---18650 cells are internal parts of electronic devices only to be bought and assembled by professional designers and manufacturers. They can't be compared to NiMH, alkaline, etc. batteries sold to general public. Abuse of such cells in direct consumer applications is common, and acceptable IMHO, because I'm all for "do whatever you want", but there is a problem if people do not know they are abusing a product for a non-intended purpose. This isn't good. You need to do it on purpose, not by accident. "Protected 18650" is an afterthought concept, and because they are originally designed for a fairly small "hobbyist" segment, the quality varies. The form factor is limiting; it cannot grow in size much, or it won't fit. Because the protection PCB requires access to both electrodes, they must run an unprotected metal strip along the side of the cell. The quality of isolation of this strip varies. 18650 cells do incorporate PTC self-resetting fuses in the cap construction, but power tool cells naturally have higher threshold. A mid-ohmic "almost short", or overload in general, is very problematic because it bypasses such fusing but can still cause damage. --- End quote --- :bullshit: There are far more devices than just e-cigs that have replaceable lithium cells. Protected cells are NOT designed for "just hobbyists". And if you advicate that all cells should be non-replaceable you are just as bad as the corporations that push that shit. |
| amyk:
Looks like this thread has quite a few corporate shills too. :palm: For an extra bit of irony, look at the datasheets for LG's own 18650s and particularly at the "safety" section: In other words, according to the datasheet, their cells should not be exploding or catching fire when subjected to those abuses, and those that do are defective.... :-// |
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