The battery of the Xiaomi Redmi Note 4 smartphone exploded and caught fire. Luckily the owner was there.
User Voldemort posted on the site Yaplakal message "I was sitting, not bothering anyone, and then there was an explosion of cotton, a flame for half a meter."
Attached to the message was a photograph of the remains of a smartphone.
A few more messages clarifying what happened:
"I was sitting on my computer. the phone is charging next to it. hiss bloating ripping off the back cover fire. 3 seconds for everything about everything "," the flame was like a flamethrower "," hands are still shaking. I managed to throw it off the table onto the floor (I have a tile) and cover it with a towel. it stinks... and if at night? "
After connecting another battery, the smartphone even started up and all data was saved from it. As you can see in the photo, the screen burned out.
Of course, the victim was unlucky that this happened to his smartphone, but he was very lucky to be there. If it happened at night, or if the smartphone was in another room, there could very well be a big fire.
Of course, this does not mean that every Redmi Note 4 will inevitably explode and catch fire. This can happen to one phone out of hundreds of thousands. In addition, it is not known which charger was used at the time. It is possible that it was the cause of the incident.
Two days ago I also suffered from a lithium battery. I was reworking the jigsaw battery assembly and accidentally shorted one charged lithium 18650 battery.
There were no sparks or pops, but the 0.5 mm² wire, which accidentally closed the battery contacts, got hot and melted in a split second, and burned my three fingers badly. Fortunately, my girlfriend with Panthenol immediately saved me. Now two fingers have almost healed, but the index on the left hand hurts and the skin is peeling off. Now I am typing this text and every time I press a key with my injured finger, it hurts.
Of course, I myself am to blame, but this once again shows what a huge amount of energy is contained in lithium batteries and what trouble can happen when it is not released as intended.
It is highly unlikely that a lithium battery can explode and catch fire on its own. In almost all of the incidents described, fires occur during charging. Nevertheless, I have been thinking for a long time about starting a fireproof filling safe at home for storing lithium batteries and devices with them (I think I have several hundred different batteries at home).
I remind you once again:
Never leave a rechargeable appliance charging when you leave home.
Try to keep your devices under supervision while charging.
© 2020, Alexey Nadezhin
The main topic of my blog is technology in human life. I write reviews, share experiences, talk about all sorts of interesting things. My second project - lamptest.ru. I test LED bulbs and help figure out which ones are good and which are not so good.