X-ray scans reveal the hidden risks of cheap batteries

by CharlesW on 10/4/2025, 6:37:31 PM with 45 comments

  • by xnx on 10/8/2025, 2:03:34 PM

    14 days ago | 120 comments: https://news.ycombinator.com/item?id=45364932

  • by whycome on 10/8/2025, 3:46:46 PM

    It's kinda crazy that we don't yet have an approval process for "flight safe" batteries.

  • by diob on 10/8/2025, 2:55:21 PM

    I actually had a battery for a drill meltdown on me earlier this year. If I hadn't been home (and it hadn't been on my stone counter when it happened), I probably wouldn't have a home.

  • by tristor on 10/8/2025, 3:56:09 PM

    Reading the original report in the dupe from 14 days ago, it seems pretty clear that the conclusion is that counterfeit/low-cost lithium batteries are a safety hazard, and we should probably have stricter import regulations for batteries to shutdown the counterfeit/gray-market operations, as they are a serious fire hazard.

  • by cko on 10/8/2025, 6:20:32 PM

    I once watched a video of a man holding what looked to be a bicycle battery walking into an elevator. After the doors closed, it seemed to have exploded and burst into flame in his hands, and the aftermath was charred remains.

    After seeing this I refuse to sleep near my 20,000 mAh power bank. I saw this Jackery power station for sale for an ultra discounted price and noticed it was not lithium iron phosphate and I noped so fast.

  • by oulipo2 on 10/8/2025, 4:32:07 PM

    The main risk factor is cells, you have to source them from reputable manufacturers. After having monitored a few battery fires, we went on to design a casing with multiple features to contain fires, you can check it here: https://www.youtube.com/watch?v=v0NXXfCA2CY

    If you're interested, you can order them here https://infinite-battery.com

  • by metalman on 10/8/2025, 4:30:37 PM

    There will always be a realy fucking bad failure mode attached to any energy dense storage medium. This is basic physics. The diffrence between a roaring fire in the wood stove, your car engine, an ultra high tech rocket motor and a bomb, is only the speed of the "flame front" A battery has the same issues, in that the higher the energy density and the greater the expected rate of energy transfer, the greater the chance of finding a way to detonate all the energy at once, which is actualy possible ,with a wood stove, if things go exactly wrong.Exceptionaly large explosions have happened with nothing more than dust, or flour. 4 things, you can pick 3. fast, powerfull, cheap, safe.