new RTC Cmos Battery for Dell Latitude 5490 5491 7280 7290 7380 DBV GC02001R000

Description

RTC Battery Assembly
suitable for
Dell
Latitude 5490
(not Dell Vostro 14-5490)
Dell
Latitude
5491
Dell
Latitude
7280
(at times referred to as E7280)
Dell Latitude 7290
Dell
Latitude
7380
Dell Inspiron 14-
5481
(not Dell Vostro 14-5481)
(aftermarket not Original Equipment Manufacturer)
that require a  cable and 2 pin plug, replacing the application integrations of P/N GC02001R000
RTC = Real Time Clock that maintains the notebook/laptop time and date settings intact during and after a shut down period. The rtc battery is simply the source voltage power provided to the rtc circuit that along with the eprom and crystal oscillator sets up the timing intervals for the system, which the Operating system obtains from this hardware.