I have just 2 weeks an HP CQ15 laptop. What surprised me is the low battery life. When the battery is fully charged, it will last just 1 hour and 45 minutes for normal office applications (no 3D games or other elaborate stuff). Is not that too little? A comparable HP laptop can last for three hours! What are your experiences when you have this model? How long does he stay with you? Is the battery already gone? I'll buy a new battery ~~~ In addition, I found a store, buy a laptop battery, http://akku-zentrum.com/laptop-akku-hp-240-g2-cq14-cq15-oa04-hstnn-lb5s-740715-001-hstnn-pb5s-15-h000-15-s000.html,
Or do you have a better idea?
Do you have the complete / correct model name of your notebook?
Is this a new device or something used?
If it was a new device then you still have warranty. How long should the battery last? HM, was it a sale of an old device? Then you will need a new battery.
