Low enough to last a week without recharging?
That's the same question as "how long is a length of string?"...
It depends how many shots you are taking with in and how long you take over each shot. Thankfully the newer batteries have minimal self discharge times, meaning that you only have to worry about power used when actually using the camera nowadays.
If you take a look at one of the recent reviews at
www.dpreview.com , for example this one:
http://www.dpreview.com/reviews/nikoncp5700/page12.asp
You will see that the best cameras can last a sustained four and a half hours of the punishing battery life test. The test is:
- Take 4 shots without flash
- Wait 2 minutes (50% of the time powering the camera off, when on LCD is also on)
- Take 1 shot with flash
- Wait 1 minute
- Repeat
After four and a half hours they have taken 450+ shots. So, I think for the sort of usage we are probably talking about in this case you probably would last a week on one or maybe two batteries.
N.B. in these tests the cameras are set to the factory settings, so most of them are likely to last longer with a little tweaking of the settings.