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> The 2019 and 2020 fires were mostly because of a 'misunderstanding' between US consumers and Chinese manufacturers.

Do you have any source articles about that? I can't quite tell your intended level of sarcasm around "misunderstanding".

Because that design, where a device that's left plugged in too long then just ignites, is ridiculously stupid from any side of the equation, especially since over the past 20 years people have been trained with things like cell phones to just plug it in and leave it. I wonder how this "self igniting" design got through any regulatory constraints at all.



I feel nostalgic: Don’t charge for too long takes me back to 1990s RC cars.


in 2020+, if you're designing a charger that doesn't stop charging when full, then you're just a cheap ass bastard that deserves to go out of business. unfortunately, the people buying things are even more cheap and would continue to buy the cheap one to complain later when their home burns down. The only solve is that these cheap chargers are regulated into oblivion


I agree, but after some limited Googling I couldn't find any evidence of these "Chinese battery chargers that don't stop charging when full", which is why I asked the comment I responded to for evidence.


I only have evidence from fire investigations I've done. I found some devices (like quadcopters) that just have a USB 5v input and a diode drop to the lithium battery. Since many USB supplies are 5.5 volts, they'll certainly catch fire pretty quick.

I also found hoverboards that have an 8s battery pack, just hooked straight to a constant voltage power supply, with no balancing circuit or charge current limiting, so some cells will end up overcharged and emit gas. There's also no protection against charging after overdischarge, which will also usually end up with a fire.


I assure you the standard of "plugged in items shouldn't just explode because they were plugged in for too long" predates 2020


I understand that, which is why this is so maddening. It's not like we're in the transition phase to new standards. We've had these rules for a while now, we shouldn't still be having to worry about the item purchased might be a problem.




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