Fujitsu FPCBP82 Battery are made from a grade cells and highest quality parts, the Fujitsu laptop battery are tailored made according to the original size, whether the battery appearance, size and quality are the same as with the original. Every laptop battery should be under strict quality control including filtration and safety testing of voltage,capacity and battery core before leaving the factory, and has passed the authentication of CE, UL, EMC, CQC,ROHS, etc.
This battery was a perfect replacement for an older battery that was no longer holding much of a charge. The new one lasts longer than the old one ever did, which is really all you can ask for. Too soon to comment on reliability.

