I have just bought a new laptop battery to replace the old one which had only 26% capacity.
Inserted the new battery in to laptop then connected mains cable to laptop to charge up new battery. After several hours of charging it does not go any further than 61% charged. Both the BIOS and K Desktop both state the new battery is healthy and both state the battery is charging (when I connect it to mains supply) but still does not go higher than 61% charged. Also the charge indicator on the laptop goes off after a few minutes but the desktop still claims to be charging.
The battery itself is a compatible battery not an original product from the laptop manufacturer.