dcampbell52 wrote:
With the Nikon, yes. However, I always long store my Nikons with a charged Nikon (as opposed to a 3rd party) battery inside as a guarantee. I've stored for up to 6months with no issues. However, I rarely go long with out using my cameras.
lithium battery manufacturers claim that the batteries are best stored at a 50% charge rate(no reason why given). Having said that, I do the same as you, charge it fully and leave it in the camera. Even after many months the battery is still 90%.