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Small rectangular CMOS battery with wire connector and 3002 marking

DBTLAP

DBTLAP standard battery for HP Pavilion dm4-3002sa

SKU CH-RNJF-20817

Lithium CMOS battery replaces the BIOS RTC cell on HP Pavilion dm4-3002sa motherboards

  • Battery TypeLithium
  • New CMOS battery restores BIOS settings and clock
  • Lithium cell tested before shipping for reliable operation
  • Direct replacement for HP Pavilion dm4-3002sa motherboard
  • High-quality build replaces faulty or cracked original unit
  • Package includes one ready-to-install CMOS battery

DBTLAP CMOS Battery for HP Pavilion dm4-3002sa

This replacement CMOS battery is designed for the HP Pavilion dm4-3002sa laptop motherboard. It restores the real-time clock and BIOS settings when the original cell is exhausted. The lithium cell is supplied new and tested before shipping. It is not a main laptop battery and will not power the system during use.

Thermals noise and power draw

The CMOS battery operates at very low current and produces no audible noise. It generates negligible heat inside the chassis. Power draw is minimal and has no measurable effect on overall system battery life or thermals. No active cooling or special ventilation is required for this component.

Build fit and compatibility

The battery fits directly onto the motherboard CMOS socket of the specified HP Pavilion model. It replaces a faulty, cracked or broken original unit without modification. Installation frees the system from CMOS checksum errors and time drift. Buyers needing a main power battery or a different laptop model will not be served by this part.

Highlights

  • New CMOS battery restores BIOS settings and clock
  • Lithium cell tested before shipping for reliable operation
  • Direct replacement for HP Pavilion dm4-3002sa motherboard
  • High-quality build replaces faulty or cracked original unit
  • Package includes one ready-to-install CMOS battery

Specifications

Battery TypeLithium

Questions about this item

How do I install the CMOS battery on the HP Pavilion dm4-3002sa motherboard, and which step is often missed?

Open the chassis, locate the coin-cell holder on the board, remove the old cell noting its orientation, press the new lithium cell in with the same polarity, then reassemble; the step most often missed is entering BIOS afterwards to reset the date and time.

What maintenance or replacement will this CMOS battery need later?

The lithium cell will eventually deplete; when the system clock loses time or BIOS settings clear on power loss, simply swap in a fresh coin cell.

What limit appears first under sustained use of this CMOS battery?

The cell's finite charge capacity is the limiting factor; after several years of continuous operation the voltage drops below the threshold needed to retain BIOS settings.

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