Originally posted by apac Is there a known issue that correlates to battery charge?
Perhaps. There may be some possible link between freshly charged batteries and 'mirror flop' and other weirdness. It seems that the Pentax battery charger can dump too much juice into the battery, so people who throw the battery into their body straight away are getting power levels initially above spec. Leaving a freshly charged battery overnight, it is suggested, lets it settle down and bleed off a bit of excess current.
Works for me
But I keep several batteries already charged and ready to go, which means they may be days (or longer) old, and thus perhaps below full capacity. So I have never had to put a 'hot' battery straight into the camera.