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Is a lithium battery installed in a device (allowed) comparable with a lithium battery not installed in a device (not allowed)? That's the steelman version of

• lxgr 2y ago
  Danger probably primarily varies with capacity, production quality etc., not form factor (disassembled or assembled into a device), sure. I'm not saying that current regulations of lithium batteries make sense; my argument is that the actual threat from lithium batteries seems larger than that of devices not in airplane mode (i.e. somewhere around zero).
• manarth 2y ago
  An installed battery will have its terminals protected and connected to the device. An uninstalled battery will have its terminals exposed, where they could be accidentally shorted by a stray paperclip, foil wrapper, or zip.