3 ms·
Phones certainly don't have big enough capacitors to store enough power to run a radio. There's probably only a few pF of capacitance in an entire iPhone for ex
by nwh 13y ago
Phones certainly don't have big enough capacitors to store enough power to run a radio. There's probably only a few pF of capacitance in an entire iPhone for example, though it not having an easily removable battery makes that a little moot.
- lotsofcows 13y agoI've had a look at a few teardowns but can't find another battery. My 'phone copes with the battery being removed while in offline mode so there's power somewhere.
- a3n 13y agoBut they probably do have enough power somewhere to silently turn themselves on, say briefly, according to some schedule or event. Not saying it's being done, but it could be done.
- nwh 13y agoWhere? No other components store power in any way. There's a few small capacitors lying around, but they're so small that you could never power anything from them. If something like this existed, people would have noticed a long, long time ago.