How Long To Charge Nikon Battery. Although osme people have used the battery prior to a complete charge it is suggested that the first time you charge it up completly. Leaving it on for 24-hrs shouldnt cause any harm.

The updated electronics in the new EN-EL15B allow charging the battery in camera via USB a first for an ILC by Nikon. I can say EN-EL14a with 1230 MaH which is used in the latest Nikon D3000 and D5000 series cameras takes around 25 hours to charge fully from 0. But your battery does come from Nikon slightly charged so maybe shorter.
Do you shoot video.
If I understand this correctly the 2 hours is for batteries to come up to about 50 of full charge the four hours is for batteries to come up to 80 of full charge and the 6 hours is for batteries to come up to 100 or to their maximum capacity. But your battery does come from Nikon slightly charged so maybe shorter. Robert McMillen shows you Battery charging the Nikon DSLR camera. But it can put an already failing battery out of its misery.
