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HP EliteBook BIOS battery
HP EliteBook 840 G9 Real-time clock battery
Compatible with HP EliteBook 840 G9 series laptops.
3 V lithium battery (with connector) for RTC/CMOS backup.
Helps retain BIOS settings and accurate system date/time when powered off.
Simple installation—minor disassembly required, plug in new battery.
Useful for service or repair tasks when laptop shows rtc‑error or resets on boot.
AED 2Deliver by: Oct 13 - Oct 15
