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Small round lithium CMOS battery with wire lead

DBTLAP

DBTLAP CMOS battery for HP ProBook 6550B

SKU CH-NQE2-567BY

Replacement lithium CMOS battery for HP ProBook 6550B motherboards, tested before shipping

  • Battery TypeLithium
  • Compatible with HP ProBook 6550B models
  • Lithium cell provides reliable BIOS power retention
  • Replaces faulty or cracked CMOS batteries directly
  • Each unit tested before shipment for quality
  • Ready-to-install replacement for motherboard RTC backup

Compatible HP ProBook 6550B Replacement

This CMOS battery is built specifically for the HP ProBook 6550B laptop. It serves as a direct replacement for the original BIOS RTC cell on the motherboard. The part is intended for technicians or owners repairing a system that has lost its date, time or BIOS settings. It is not a main laptop power battery and will not run the computer.

Lithium Coin-Cell Chemistry

The cell uses lithium chemistry to provide the stable low-current supply that the real-time clock requires. This chemistry matches the original specification for the motherboard coin-cell socket. A different chemistry would not fit the voltage or holder, so this specification is the deciding factor for compatibility.

Restores BIOS Settings and System Clock

A fresh cell reliably holds the CMOS configuration and keeps the system clock accurate for years of continuous standby power. It resolves the common symptoms of a dead cell such as checksum errors, lost boot order and time resets at every cold start. The battery does not supply power to the main system and cannot extend runtime.

Highlights

  • Compatible with HP ProBook 6550B models
  • Lithium cell provides reliable BIOS power retention
  • Replaces faulty or cracked CMOS batteries directly
  • Each unit tested before shipment for quality
  • Ready-to-install replacement for motherboard RTC backup

Specifications

Battery TypeLithium

Questions about this item

Will this CMOS battery keep the HP ProBook 6550B system clock and BIOS settings running when the main power is off?

Yes, the lithium cell supplies the continuous low current needed to retain the real-time clock and CMOS configuration while the laptop is unplugged or the main battery is removed.

What connector does this replacement use to attach to the ProBook 6550B motherboard?

It comes with the same two-pin plug and short lead as the original factory part, so it plugs directly onto the motherboard header without soldering or adapters.

How does the battery mount inside the HP ProBook 6550B chassis?

The coin cell sits in the existing motherboard holder and the lead routes to the nearby header; no extra brackets, screws or adhesive are required.

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