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How do you suppose a lithium battery’s charging is managed? What controls it, sets safe limits? Is this hardware able to be accessed from the device in any way?

How do you suppose a lithium battery’s charging is managed? What controls it, sets safe limits? Is this hardware able to be accessed from the device in any way? Your phone is a bomb as long as you just adjust your attitude and think a little deeper.

jesterson 4y ago
I suggest you to learn the subject more before making assertions about thinking a little deeper.
- ryan_lane 4y ago
  I've worked with batteries, and firmware, and the person you're responding to is correct. The firmware on a battery controls things like charging limits (and more!). If the firmware is written poorly it leads to battery fires.
  - jesterson 4y ago
    > firmware on a battery controls things like charging limits (and more Was I opposing this? > firmware is written poorly it leads to battery fires Do you have any supporting to the claim? While there may be some correlation between battery firmware and fires, I doubt fire can be caused by firmware routine, even if it is calling short-circuiting the battery.
    - steponlego 4y ago
      You're out of gas dude.
      - dang 4y ago
        Could you please stop posting unsubstantive comments and flamebait? You've unfortunately been doing it repeatedly, and we've already asked you to stop. We ban accounts that keep doing this. It's not what this site is for, and destroys what it is for. If you'd please review https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html and stick to the rules when posting here, we'd appreciate it.
    - ryan_lane 4y ago
      > Do you have any supporting to the claim? Direct experience. You're going to have a hard time finding public documentation about a battery maker owning up to firmware causing a fire. Usually the product the battery winds up in takes public responsibility for the issues and they'll list the problem as quality control. In the case I'm describing, we had to get the firmware code from the battery manufacturer and rewrite the firmware while we shopped for an alternative battery with better quality control. To cause a fire, you'd remove the limits on overcharging.
- dang 4y ago
  Please don't post swipes like this. It's against the site guidelines (https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html) no matter how wrong someone is or you feel they are.

jesterson 4y ago

I suggest you to learn the subject more before making assertions about thinking a little deeper.

ryan_lane 4y ago
I've worked with batteries, and firmware, and the person you're responding to is correct. The firmware on a battery controls things like charging limits (and more!). If the firmware is written poorly it leads to battery fires.
- jesterson 4y ago
  > firmware on a battery controls things like charging limits (and more Was I opposing this? > firmware is written poorly it leads to battery fires Do you have any supporting to the claim? While there may be some correlation between battery firmware and fires, I doubt fire can be caused by firmware routine, even if it is calling short-circuiting the battery.
  - steponlego 4y ago
    You're out of gas dude.
    - dang 4y ago
      Could you please stop posting unsubstantive comments and flamebait? You've unfortunately been doing it repeatedly, and we've already asked you to stop. We ban accounts that keep doing this. It's not what this site is for, and destroys what it is for. If you'd please review https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html and stick to the rules when posting here, we'd appreciate it.
  - ryan_lane 4y ago
    > Do you have any supporting to the claim? Direct experience. You're going to have a hard time finding public documentation about a battery maker owning up to firmware causing a fire. Usually the product the battery winds up in takes public responsibility for the issues and they'll list the problem as quality control. In the case I'm describing, we had to get the firmware code from the battery manufacturer and rewrite the firmware while we shopped for an alternative battery with better quality control. To cause a fire, you'd remove the limits on overcharging.
dang 4y ago
Please don't post swipes like this. It's against the site guidelines (https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html) no matter how wrong someone is or you feel they are.