The battery for the Alienware M17X R2 laptop comes in two different shapes. In order to ensure that you receive the correct battery you should take your battery out and compare it to the picture above. This brand new 9 cell battery replaces the Alienware M17x and M17X R2 laptop battery. This battery features lithium-ion cells. 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 1 year warranty.
You can expect about 3 – 3.5 hours of run time with this computer battery when new, depending on your energy use.
Like all Li-ion primary batteries, your run time will decline over time.
This battery replaces the AlienWare M17X R2 laptop batteries.
Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells
inside the battery pack so you will have a long service life (300-500 recharge cycles). We do not use cheaper battery cells which can wear out in a little as
6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.