Motorola RAZR V3

I've read a few things about the troubling of the razr battery. I've had mine for 3 months now and it has been fine, but the other day when I took it off the charger it said ''charge complete'' but a few minutes later went back to 2 bars. So I charged it for 24 hours straight just to make sure, took it off, and it went back to 1 bar and is blinking. Do I need a new battery? How can I manage my battery life better? Thanks.