You should always allow your battery decay to empty if you wish to maximise the life of the battery.
Realistically 2 hours on battery power normal usage is not bad at all if you are getting 3 hours thats excellent.
There is little wrong with your battery calibration its what Fujitsu does to protect your data so you have no lost information.
Batteries are just storage devices that run the laptop when there is no external power being used they generally run the system a lot slower than under power to preserve as much of the battery storage as possible by doing so they can achieve 2-4 hours running on battery power. If you are looking for more battery time then you should look at some of the net books that are available whereby some 5-6 hours can be achieved on the battery power albeit with a adapted operating system..
Like others have mentioned, this advice is very abstract. First of all Li-ion batteries should not be drained completely (infact neither should some of the legacy types be completely
). Secondly, it's not normal to switch off a laptop if it has another hour worth of battery, 20 mins would be more permissible on a worn out battery. 1 hour is 33% capacity that it's not letting you have!
To the OP, how are you completely discharging the battery? I presume you are already doing a procedure similiar to below, but just for clarification:
Boot into safe mode and select high power/AC power plan
Allow laptop to switch off through insifficnet charge (rather than an ACPI shutdown)
Plug charger in and charging till completely full (keep an eye on this of course, usual disclaimer)
Once battery is at 100%, then see if any difference is made.
If not, it may be safe to assume that the chip on the battery used to calculate the charge, or the battery itsself, is simply defective and needs replacing.
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