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Small silver coin-cell CMOS battery with attached wires and connector

DBTLAP

DBTLAP CMOS Battery for HP Pavilion dv4-2040us

SKU CH-KGX0-3RKG3

Replacement CMOS RTC battery for HP Pavilion dv4-2040us laptop motherboards

  • Battery typeLithium
  • Compatible replacement for HP Pavilion dv4-2040us
  • Lithium cell maintains BIOS clock and settings
  • Tested before shipping for reliable operation
  • New CMOS RTC battery for motherboard use
  • Single unit included for straightforward installation

Direct Replacement for HP Pavilion dv4-2040us

This lithium CMOS battery restores BIOS settings and real-time clock function on the specified HP Pavilion notebook. It is intended for owners of that exact model who need to replace a depleted or faulty RTC cell.

Verify Motherboard Connector Before Ordering

Confirm that the existing CMOS battery on your motherboard matches the physical layout and lead spacing of this replacement. The part is designed for laptop motherboards only and is not a main system battery.

Tested Lithium Cell Ships Ready to Install

Each unit is tested before shipping and arrives as a single battery without extra cables or brackets. The compact lithium construction fits the original motherboard socket for straightforward daily operation.

How it compares

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

Price $11.99
Pricier than about 55% of the 10,440 comparable items (median $10.99).

Specifications

Power
Battery typeLithium

Questions about this item

Does the package include anything besides the CMOS battery for the HP Pavilion dv4-2040us?

The box contains one CMOS battery only; no cables, holders or tools are supplied.

Is there more than one version or capacity of this CMOS battery to choose from?

Only the single lithium cell shown is offered; there are no alternative capacities or form factors for this model.

What does the lithium chemistry mean for real-world use in the laptop?

The lithium cell maintains BIOS settings and the real-time clock when the main power is removed.

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