Battery Backup Guide

JPhotos asked:


I want to purchase a backup battery for my nikon d80. What battery will last me the longest? I will be shooting at friends’ weddings and do not want my battery to die on me.

bexsie asked:


I have a HP Photosmart R742 Digital Camera. Works great. But I would love to have a 2nd battery for backup. Unfortunately I cant find a location that sells them or even on HP website.
Ebay has some but their China made & I read that those are not good. HP says that that model is discontinued & no accessories are being sold anymore….

Where can I find one?

Jugi asked:


I’m looking to get a new digital camera. I’ve been looking at a lot of the very small ones, and noticing that they all seem to come with their own rechargeable battery. My current camera uses AA batteries, and when I use lithium batteries, they seem to last forever. (Regular batteries are eaten up quickly.) I do tend to take lots of pictures - basically anything that moves (and I guess everything that doesn’t too). Would I be sacrificing on battery life by choosing a model that comes with its own rechargeable battery? I’d hate to be on vacation somewhere and the thing just dies in the middle of the day. Also, are backup batteries expensive?
My main concern is how many pictures I can get out of a single charge.