Have you checked out that your charger is 100% ?
I’ve never personally had a problem with a camera draining batteries to quick, but have had a charger fail.
(years ago – batteries and chargers are much better now)
Also, a brand new battery will take a few charge/discharge cycles to get to full capacity.
A picture is thousand words that takes less than a second while a thousand words is a picture that takes a month.
I think the problem is with the camera – we have had the same symptoms with multiple batteries. I have multiple chargers and can’t seem to trace it to either of those units.
The camera goes from working fine one minute to being completely dead.
I think she bought a Nikon battery, but I didn’t check.
I suppose to triple check, I could use my d300 battery in the d70, but was reluctant to do so under the theory that the camera might have some impact on the good battery, depending on the nature of the underlying problem. Is that a realistic concern?