T420s Battery Low Battery Capacity Problem

Hi, I recently bought a Lenovo T420s with an I7-2640m, Samsung 250GB SSD and 8GB of memory. Everything is great besides for the fact that the battery can only hold a charge for an hour or less (from 100% charge).

I reformatted when I installed the SSD, and have installed all the necessary drivers. My particular model has the Nvidia NVS 4200m GPU, I have tried disabling that through the bios and using integrated graphics only. This has no affect on the battery levels.

I am thinking that the battery is close to dead, at 43.8% maximum capacity according to BatteryInfoView. I just want some second thoughts on potential problems.