Originally posted by vanakaru When in movie mode use only original batteries. Batteries get hot and non originals may even explode.
Good point, BTW!
Oh dear oh dear, I can just picture it now. On my next outing little black mushroom clouds rising up to the sky everywhere. People running around with charcoaled faces holding the remainder of their camera in their hands. Television news crews don't come anymore because they have seen it so many times before and they know it only happens because people use generic batteries.
VANAKARU, this is precisely the uninformed view that creates all the paranoia over generic batteries. It also suggests you know very little about Lithium Ion batteries.
Behind every Li-Ion battery lies an impressive bit of chemical and electronic engineering. In every Li-Ion battery you will find electric circuitry which constantly monitors/manages the performance of the cell. In its main it comprises of a small computing device and several temperature sensing taps. Because Li-Ion batteries are very sensitive to heat (and when under stress they can get hot easily) the little computer in them will shut the battery down when it gets too hot to prevent further heat build up and thereby preventing catastrophic failure.
Also in your example the camera would most likely shut down its video operation (because the sensor gets hot also) before the battery has a chance to "explode".
The little "computer" inside the battery is on all the time even when the battery is sitting on the shelf and it uses power, in fact this is the reason why Li-Ion cells slowly discharge even when they are not in use.
So, please do not spread untruths and scare people. These days when a Li-Ion battery catastrophically fails it is truly a very very rare and uncommon event and is most likely the result of abuse or mistreatment.
Greetings from sunny Melbourne