I'm havin trouble with my laptop. Whenever i unplug the charger, it will say it has around 3 hours of battery life left, but it realy drains down to zero within 10 minutes. My power plan is set to power saver but it still drains realy fast. i have to have it connected to a charger all day to use it and this kinda defeats the purpose of the laptop... The laptop is a Fujitsu Lifebook T series.
It's prolly misreading because you never let it fully discharge. In most Lithium ion based laptops, a complete discharge to "dead" recalibrates the charging circuitry which 1) should give you an accurate reading of time left and 2) optimizes charging rate so that it recharges your battery quickly tapering off as it gets closer to full thereby optimizing both charging rate and battery life.