I had bad experience with a snap shooter I bought from ebay 3 years ago. It used a pair of AA batteries for only 15 shots. Than I bought the most expensive AA batteries I could find - $22 for a pair - and the camera screen stated low batteries after about 20 shots. Because that bad experience I hurriedly bought a spare batteryover here in ebay for total of $26, not one but two. So I was ready for any eventuality. But man, the original battery in this d40 just refuse to run out. I click and click and click, yet this thing just kept on going, hundreds and hundreds of shots - bastard!. Finally it gave up the ghost after many torturous clickings. Not the camera that was tortured though, my finger is what I am talking about. So, if you think of spare battery, don't worry about it. It last forever. Beside the charger is very fast charger. Now my camera is almost 2 months old and I just recharged it for the 3rd time.