Comment by TheJoeMan
4 days ago
Add this to the list of “18650 cells being incorrectly used as removable batteries”. At this point the sale of those battery holders should be banned…
4 days ago
Add this to the list of “18650 cells being incorrectly used as removable batteries”. At this point the sale of those battery holders should be banned…
I imagine that OP is referring to batteries with no protection circuit and the positive and negative terminals of the batteries being exposed[1]. The Samsungs in the keyboard do in fact lack a protection circuit. I don't know if banning the sale of battery holders is going to be a great fix.
[1]: Something like this: https://www.cpsc.gov/Newsroom/News-Releases/2021/CPSC-Issues...
Yes that is a good link summarizing the issue. If anything the perpetuation of the practice is making it harder for the actually-safe batteries. For example, TSA bans checking loose cordless drill li-ion batteries, despite them obviously having full PCB circuits inside with charging and short-circuit protection.
Can you elaborate on or cite a source as to why this practice is incorrect? The Nitecore D4 battery charger supports recharging of this and other sizes of Li-ion batteries (in addition to NiMH), so I am skeptical that it is inherently dangerous.
I guess an exposed battery is more susceptible to short circuit. Imagine you have this in your pocket while in a heavy rain. Battery could short circuit due to water creating conductive connection between battery terminals. It would heat up quickly an maybe even start burning. Still, I prefer 18650 to these flat, lasagna-type cells which swell and can be pierced by any sharp object. Even though the latter has built-in protection and the former doesn't.
Why is that a problem? Potential for damage when exposed/changed? No battery protection?
Potentially over discharging, which can reduce the life of the cells.
I've heard that there are tech savvy people using 14500 cells coupled with spacers to match voltage ranges as an upgrade from NiMHs. Made me realize there are still wonders in this world.