Extended battery for HTC Incredible S

Got an extended battery online from obostore. Its a 1700mAh battery from Andida. Price is reasonable at USD8.99 with free shipping. International shipping to most locations in the world.
Anyway, it look about 7 days to reach Singapore.
I am evaluating its performance now. Stay tuned.

Got my first android phone

Got my first android phone on the 27th Apr 2011.
It is a HTC Incredible S in Froyo.
Battery life seems a little weak. For the first two weeks or so, battery died by 5:30pm. Usage pattern as follows:
a. Immediately put on the charger when I reached home at about 7pm.
b. Charged through the night
c. Unplugged the charger at 7am in the morning.
d. Checked a few emails in the morning.
e. Send a few SMSes in the moring.
f. Not more than 1 hour of call time during the day.
g. Surfed about 10 - 15 minutes of web
h. Spent approx 20 minutes on Facebook
Used to have an iPhone 3GS. Its battery definitely lasted longer than that.