This is a brand new Alienware A14 replacement battery.
This battery is only compatible with the A14 and M14x R3 and R4 models. Here you can find the Alienware M14x R2 Battery.
This Alienware A14 battery is an internal or integrated battery and you will need to unscrew the back case in order to install the new battery. A small phillips-head screwdriver is all you will need to open up the case. Li-ion battery technology provides longer run times with less weight. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This laptop battery replacement is 100% compatible with the original battery specifications and is individually tested and backed by a 6 month warranty.
You can expect about 3 – 5 hours of run time with this Alienware A14 battery when new, depending on your energy use.