New CMOS RTC BATTERY for Dell Alienware Alpha R2 Alienware Steam Machine R2

Description

This listing is for a new RTC Cmos Battery that supplies the Real Time Clock Bios circuit for keeping time settings to the motherboard on the notebooks listed below:
This 3 volt RTC Cmos Battery fits and works on
Alienware Alpha R2  i3-6100T
Alienware Alpha R2  i5-6400T
Alienware Alpha R2  i7-6700T
Alienware Steam R2 i5-6400T
Alienware Steam R2 i7-6700T
(This is the R2 models and the RTC Cmos Battery is compatible, not original equipment)