best to charge it b4 it even reaches 50%

obsolutely normal.....at times you would also find that it charges whole nite but only reach 99%

You only have to worry if whole nite u charge, max u can get like 80%

Guys, personally I think, there's no need to be very concerned about battery drain / usage. It comes with 1 to 2 yrs warranty.

Generally, for low usage iP4 can last well for 2 days.

For moderate usage, it'll last u 1 day. For heavy usage, few hours n u need to recharge.

Considered some improvement over 3GS.

Being Li-ion battery and also recommendation of not leaving the battery too low b4 charging......you should charge your iP4 daily b4 going to bed, and remove the charger when u wake up. Doing so is sufficient nuff care given to the iP4.

Should enjoy the phone n its functions n apps etc. rather than focussing on the battery bar or Usage screen.