New DELL LATITUDE C540 C640 Reserve CMOS Battery 6P466

Replace Dell Part # 5D566, 05D566, 6P466, 06P466, 9604T-2

Will Fit

 Dell Latitude Series -- C510, C540, C610, C640,  LS, LSt

 Dell Inspiron Series-- 2000, 4100, 4150

Gurantee Not Dead On Arrival

 Always got wrong date and error message when you turn on your laptop?

Get the error message "Strike the F1 key to continue or press F2 to enter the setup utility" when you boot up your Dell laptop?

Even the Windows XP can't be loaded correctly??
(Windows XP can't be loaded correctly when the Date setting is no sense,
this could happen when the CMOS battery voltage is low).

Then it is time to change your CMOS RTC coin battery! Every laptop has a small coin cell battery to power the BIOS chip to keep the date, and other internal settings effective. Without these cmos batteries or a dead cmos battery these internal setting will not function.

CMOS RTC battery should be replaced every few years (typically 3-4 yrs).

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