Lately me laptop battery is charging for less than an hour at less than 10% charge. When it should be more than 3 hours to charge. How do I calibrate my laptop battery so that it goes to normal again. This laptop is less than 1 yr old.
Modern lithium batteries are typically "smart": they have an internal controller that tracks recharge history and detects any "lost" capacity, to prevent dangerous overcharges. If they didn't, your laptop would occasionally catch on fire. You probably don't want that.
Unfortunately, sometimes the controller detects lost capacity... A little too well, so to speak.
Now, before you put your battery in the freezer, remember that chips are often more susceptible than the battery itself to low temperatures, so the usual freezing trick (which has about an even chance of working on dead NiMH batteries) is not a good idea: it may result in a broken controller, which may be a literal health hazard (see above about laptops catching on fire).
A full discharge, followed by a full charge in a very cool and well-ventilated place (you need a cool battery to improve the results, but you don't want any humidity to condense on your laptop's innards), may cause the controller to reassess the status of your battery.
Don't go overboard with the cooling: stay above 0 (or, above 32, for USians).
Unfortunately, lost capacity is usually a one-way trip, so there is no guarantee that even a good recharge cycle will cause the controller to reevaluate your battery's health status. If you get no results at all after 5 to 10 cycles, either your battery is too damaged or its controller is not designed to detect improvements.
The battery could have lost its ability to retain a charge. It not a calibration issue so much as its a "your battery is not that good anymore" issue.