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Small round silver lithium CMOS battery with two wire leads

DBTLAP

DBTLAP CMOS battery for HP Pavilion dm4-3050us

SKU CH-YWW8-KJHBY

Lithium CMOS battery restores BIOS settings and system clock on compatible HP Pavilion dm4 laptops

  • Battery typeLithium
  • Compatible replacement for HP Pavilion dm4-3050us motherboard
  • Lithium coin cell maintains BIOS settings and system clock
  • Tested before shipping to ensure reliable operation
  • New CMOS RTC battery designed for laptop motherboards
  • Package includes one ready-to-install replacement battery

Exact-fit replacement for HP Pavilion dm4-3050us

This CMOS battery is built specifically for the HP Pavilion dm4-3050us laptop motherboard. It restores the real-time clock and BIOS settings that keep the system clock accurate between boots. The part is designed for owners of this exact model who are experiencing date-reset or CMOS-checksum errors. It is not a main laptop battery and will not power the portable computer itself.

Tested lithium cell with direct-fit connector

Each unit is a new lithium coin cell verified by the supplier before it leaves the warehouse. The battery arrives ready to install with the correct lead length and connector for the dm4-3050us motherboard header. No soldering or adapter cables are required, so a single technician can complete the swap in minutes. The compact cell sits flat against the board without fouling nearby components.

Lithium chemistry chosen for long calendar life

The lithium formulation provides the multi-year voltage stability that CMOS circuitry demands. This chemistry is the single specification that determines whether the replacement will hold BIOS data reliably across power-off periods. Buyers who need a rechargeable main power pack or a different form factor for another laptop model should look elsewhere.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Power
Battery typeLithium

Questions about this item

What battery type does the CMOS cell use for the Pavilion dm4-3050us?

The replacement uses a lithium chemistry coin cell that maintains the system clock and BIOS settings when the main power is off.

What physical connector does the CMOS battery need to fit the motherboard header?

It comes with a two-pin plug on a short lead that matches the CMOS header on the Pavilion dm4-3050us board.

Which installation step is most often missed when swapping the CMOS battery?

After fitting the new cell, enter the BIOS setup and reset the date, time and boot order so the laptop starts correctly.

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