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Small round lithium CMOS battery in plastic wrapping

DBTLAP

DBTLAP CMOS Battery for HP ProBook 6545b

SKU CH-XXGH-XQ8N2

Lithium CMOS battery keeps the HP ProBook 6545b system clock and BIOS settings running when the main power is off

  • Battery TypeLithium
  • Replacement CMOS battery restores BIOS settings on HP ProBook 6545b
  • Lithium chemistry provides stable power for real-time clock
  • Tested before shipping to ensure reliable operation
  • Single battery included for direct motherboard installation
  • New component fixes faulty or cracked original CMOS battery

Direct replacement for HP ProBook 6545b

This CMOS battery restores the real-time clock and BIOS settings on the HP ProBook 6545b. It is intended for technicians or owners repairing a laptop that loses time or shows checksum errors. The lithium cell arrives new and tested, ready for immediate installation on the motherboard.

Fits the motherboard coin-cell socket

The battery slots into the existing CMOS holder on the system board, requiring no cables or adapters. Replacing the cell frees the firmware from reset loops and preserves boot configuration between power cycles. No soldering or additional hardware is needed beyond basic disassembly tools.

Steady voltage under continuous low drain

The lithium chemistry delivers a stable 3 V output for the years-long, microamp-level draw of the RTC circuit. It maintains this voltage through daily power-off periods and temperature shifts inside the chassis. The cell is not designed for high-current bursts or primary system power.

Highlights

  • Replacement CMOS battery restores BIOS settings on HP ProBook 6545b
  • Lithium chemistry provides stable power for real-time clock
  • Tested before shipping to ensure reliable operation
  • Single battery included for direct motherboard installation
  • New component fixes faulty or cracked original CMOS battery

Specifications

Battery TypeLithium

Questions about this item

How long will the lithium CMOS battery keep the HP ProBook 6545b clock running under continuous use?

The lithium cell is designed to maintain BIOS settings and the real-time clock for several years of normal operation before voltage drops below the level needed for reliable timekeeping.

Does the battery generate noticeable heat or noise during all-day operation?

The CMOS battery is a passive component with no moving parts; it produces no audible noise and negligible heat while powering the motherboard RTC circuit.

What connector or cable must already be present on the motherboard for this battery to work?

The battery uses the standard two-pin CMOS header found on the HP ProBook 6545b motherboard; no additional cables or adapters are required.

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