T470 (1wk old) - Bad battery performance

I received T470 laptop on 10-jan-2018 & started using it normally since wednesday 17-jan. The OS is win10. Below are the observation w.r.t the Battery which looks pretty horrible for a new laptop. Battery is 24+24W 3 cell.

Charging cycle takes 4~6h

On charge the , i can work for no more than 2h 20m max. I use outlook, notepad++ jabber & chrome with max 4 open tabs.

Another colleague of mine received the very same model on same day. His observation is charging 10~100% in 1h max & hold time of 6~8h. 

I am confused why the difference in my laptop that too barely a week old.

Please advise.

Actions performed:

Battery Gauge reset via Lenovo Vantage (18-jan 20:55h to 19-Jan 10:13h).