Better battery for nikon d3100?
Is there a better battery for this camera, because mine is empty in 1.5 hours.
Try this:
The genuine Nikon battery is the best one available. Are you using Live View? If so, that would explain that rapid depletion of your battery…
You should be able to get over 1500 shots per battery charge if you DON'T use live view. If you're shooting lots of video, you are stuck using live view. Also, the flash will eat up batteries if you use flash often. Live view was mainly added to seduce the point & shoot users, however, it does have its uses for certain types of shooting (awkward shooting positions, overhead shooting, video).
Learn to use the optical view finder. Once you get used to it, you'll wonder how people shoot using live view. Using the optical view finder, you'll find that focusing is faster. Plus, you can leave the camera on all the time while using it since in sleep mode, the power consumption is same as having the power switch in the off position.