I purchased a spare battery for my D200 camera recently and I found it to perform as well, if not better than the original. (Battery which was included with the D200) The charge time from complete drain to fully charged was less than 45 minutes and the battery lasts about 4-5 hours, before I usually need to get it charged again. The primary thing I like about this battery is the fact it will work with my portable non-nikon branded car charger (although it takes about 15 more minutes to fully charge compared to 45 when on AC power) I purchased this battery from amazon, but it is easily found among many other electronics stores. I suggest you use caution when making your purchase, since some locations sell "knockoffs" which may/maynot work as well as the original and I also understand that some do not contain a sensor which tells the camera how much battery life is left. Another good thing about this particular battery, is that it will also work on a D700 among others.