A:AnswerI have used it all day taking upwards of 1000 photos - I don't shoot video so I can't say how long it will last shooting video. I do tend to turn my camera off when not shooting which helps extend the life of the battery.
A:AnswerNo, it does not. The Nikon D3300 DSLR camera is powered by one EN-EL14a Rechargeable Li-ion Battery or one EN-EL14 Rechargeable Li-ion Battery.
A:AnswerNo, the EN-EL15 battery is not compatible with the Nikon D700 camera. According the official product manual, the D700 uses battery EN-EL3.
Here is a link to the product manual: http://download.nikonimglib.com/archive2/JCLag00oVq1V01uV7j850WxvZ217/D700_EU(En)04.pdf
A:AnswerYes, the Nikon D7000 camera uses the Nikon EN-EL15 battery. This is documented on page 314 of the official product manual:
http://download.nikonimglib.com/archive2/j0v3l00Dv39x01U97ft13W9kOV17/D7000_EU(En)06.pdf
A:AnswerNo, charger is not included. Must purchase separately. I just took a photo trip to Central America, taking two of these batteries, charging one most nights. Always good to have a backup!
A:AnswerThe charging lamp on the MH-25 battery charger should be blinking slowly while the Nikon EN-EL15 rechargeable li-ion battery is being charged in it. If the Charge lamp flashes quickly (about 8 times a second) during charging, confirm that the temperature is the correct range and then unplug the charger and remove and reinsert the battery. If the problem persists, cease use immediately, and contact Nikon Support for further assistance.