Fits as original battery, in my MSI FX720. Capacity is exactly as specified. 5200 mAh are charged with 3420 mAh power supply in 92 min. The battery pack is supplied empty. After charging I started the laptop and was amazed at the battery indicator. I had expected a gain of 18% uptime. But instead of 2.5 hours at the 4400 mAh original battery 4 hours now displayed and actually achieved. When the life is just as good then I made a real bargain.
