Maybe you got a bum charger. I bought a digipower charger with 1800 mah batteries from tigerdirect, charged it immediately following the instructions (4 hrs) and used it; to my surprise, the batteries were only good for 11 shots! So I repeated the whole process, this time charging it overnight... same results! Went out and bought another brand ( Powerhaus), and thank goodness this time it worked. So far I get about a 100 shots with the LCD on. Don't know if this is normal because I read somewhere that you should be agle to get 200+ shots with 1800 mah batteries.
Note: If you're getting a charger, get one that trickle charges after the quick charging is done.