From the image you posted it looks like the battery lasted somewhere around 9 to 10 hours on a full charge cycle. Is that accurate? Was the device being used during that time? It does drop off quickly though within the first few hours. Things you can try—check your system for any power-hungry processes using Activity Monitor, reset your power management settings in the Terminal using the command "sudo pmset restoredefaults", make sure you put the new battery through a full charge cycle to calibrate it, check the new battery health with CoconutBattery. If the new battery seems faulty I would contact the supplier you got it from to see if you can get a better quality replacement. Good luck!