No one has done a real root cause analysis and research shows humans are really bad at it when relying on intuition alone.Ĭascading failure here is possible. Why are you assuming the battery is the source, not the result, of a failure elsewhere in the system? Compare the standard nail test (done by remote control) of a LIon battery. Five minutes of heavy white smoke and some runny black stuff, but no flames or explosion. Here's a video of someone driving a 3" nail through a LiFePo battery. But the "does not blow up or catch fire" feature is worth it. There's a 14% energy density penalty with lithium-iron-phosphate batters vs regular lithium-ion. If it's going to be banged around, that seems to be the way to go. So do "Boosted" brand electric skateboards, and many (all?) second generation UL approved "hoverboards". Most pro power tools already do it's expected that they will be used hard and abused. Maybe it's time to require that anything bigger than a phone use lithium-iron-phosphate battery technology, which doesn't have a thermal runaway problem.
Then pressure builds up until it shorts, goes into thermal runaway, and catches fire. How much extra space did Apple allow around the battery for swelling? Samsung's problem seems to be that they fit the battery in so tightly that if it ever swells, it's contained by the limited space. The computer giant was forced to confess that problems with the laptop's batteries, made by Sony, means they are a major 'fire hazard'. In an extraordinary admission, the world's largest computer firm, Dell, said yesterday that 4.1 million laptops are at risk. Millions of computer users were on red alert last night after they were warned that their laptops could burst into flames at any moment. Whereas if you have any other brand it's OK? > If you have a MacBook be careful leaving it unattended on the bed, battery fires burn hot and fast with little time to react. Damn, Apple, how about a bloody sensor for such stuff at least to give an early warning? > After reading up on the matter it seems that lithium batteries can swell, and there have been numerous reports in the past about older MacBook batteries swelling up and catching fire - however with the newer unibody laptops there is no way you can see this swelling happening. The model number A1078 is forever etched into my mind. Granted this was 12 years ago and I wasn't involved in direct conversations with Apple myself as a lowly level 1 helpdesk technician, but from everything I saw they handled the situation completely professionally and seriously. They paid to have the desk replaced, replaced the laptop and paid for the third-party data recovery. The IT director called our Apple rep the next day and they immediately began a process of investigation. Her desk was scorched and the laptop was burned beyond repair (but we did manage to get a DriveSavers-like company to recover most of the data on the HDD). (Side note: the department was very insistent on not having water/liquids near equipment, so she actually apologized for pouring water on her flaming laptop.) Thankfully she put it out immediately. A woman called the helpdesk because her PowerBook had caught fire. I worked on the IT helpdesk at the time, and though I wasn't working the late shift that night, we all found out about it the next morning. In 2005, I worked for a company where there was an incident that led to the 2005 PowerBook G4/iBook G4 battery recall.
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