Re: Lithium ion questions
As with so many questions.....it depends.......
Depends on what camera - what capacity battery - how much you're shooting - etc. etc.
Re: Lithium ion questions
As mentioned above it depends greatly on many factors......
Lithium batteries hold a charge longer than any other kind of battery on the market, maintaining 90% of its charge over approx. 10 years - so you might as well buy a few of them, just in case - especially if you are shooting digital.
There are many ways you can drag that battery out as long as possible, ie. turn off the af-assist light, minimize use of popup flash, avoid long exposures, use center weighted metering over 3D-matrix metering, and on digital cameras minimize using the LCD for previewing.
But yeah, it never hurts to have 2-3 spare batteries.
The nikonians battery guide might help shed some light on your situation:
http://www.nikonians.org/html/resour...ery-guide.html
cheers,
Trevor