Batteries don’t just explode on their own. Why is it happening so often to vapers and not to the rest of the world this often? Because we misuse and mishandle them. Not because we’re careless or uncaring about things, because of the design of these batteries and devices.
Millions and millions of rounds cells are made and used every year with only a few scattered reports of problems. Most of those problems end up being caused by external issues too.
Look, there is a video I saw on youtube a few years back and I am sure it is probably still there. This shop charged up a RC lipo and when charge was completed, they disconnected it from the RC charger and just sat it on the counter. Nobody was near it or anything and I guess the security camera recorded all of this. But about 30 minutes later the lipo just suddenly burst into flames. How could that happen? My guess is somehow chemically, the lipo went into thermal runaway.
Another thing, shipping lithium batteries has many restrictions. The big fear is they are suddenly going to burst into flames. But why should they worry if what you say is true? They are usually well packaged, stored at storage charge and as long as a forklift driver or something doesn't run a fork into the box of cells, it should be alright, no? Apparently not, as they can still suddenly burst into flames anyway.
The batteries we use are not meant for use outside of a protected battery pack and have risks because of that. Sliding them in an out of mods and chargers, using these inexpensive external chargers, terrible USB charger quality, etc. These all increase the risk of trouble.
Because these cells were designed only for use inside a battery pack they are quite susceptible to their wraps and top ring insulators being damaged. This risk is made all the worse by poor mod and charger design.
Yeah I hear you say this all of the time and it is true of many manufactures. Even though there are flashlights and things like computer mice that uses lower amperage lithium cylinder type cells too (i.e. 18650 and other sizes). Some of those batteries have button tops. I don't actually see button top batteries of actually being used in battery packs (you could but why?). Sadly button top cells used for vaping are rare in the vaping community.
And what about Aspire? They are co-owners of Yongdeli Battery Factory and have total say in how their cells are manufactured. And the reason why they bought part of the Yongdeli Battery Factory is because they didn't trust other battery manufactures to provide safe vaping cells. Aspire could have teamed up with Sony, Samsung, LG, or anybody. But Aspire didn't trust them to make them safe. It's all in Busardo's video.
And where does Aspire think their cells are going to be used? They believe the majority are going to be used for vaping of course. Unlike other manufactures who say don't use for vaping, Aspire says it is ok to use for vaping. That is a big difference. Aspire also expects the user to swap cells a lot and uses some really tough wraps. Something you need for heavy swapping.
Temperature testing every battery wouldn’t find internal faults. Other tests can be done and usually are before every battery leaves the factory. You need the testing in order to grade the cells. Lower grade cells are not dangerous cells. A lower grade LG HG2could easily have been sold as an A Grade 15A 2800mAh cell instead. Lower grade cells just have lower performance.
Temperature testing will find some internal faults. First higher temperatures causes cells to expand. But cylinder cells like 18650 can't expand as they are tightly wrapped. But the pressure is still there. And if two plates are a little too close which might go unnoticed until a vaper starts to chain vape, or caught during temperature testing. So I think temperature testing is just another step to make these bombs safer.
Yes I am well aware of grading manufactured products. Heck, there is a rumor that since Walmart insists in paying less for Energizer batteries, Energizer sells them their lower grade batteries (you can't tell by the packaging). I think I read that in Consumer Reports or somewhere.
Aspire cells get used MUCH less often than other cells. That will significantly reduce the number of any reports you might find.
True, but all I need is one or two examples to make me rethink that maybe Aspire isn't on to something. But so far, I got nothing.