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Small round silver lithium coin cell battery 1140

DBTLAP

DBTLAP CMOS Battery for HP Pavilion dm3-1140us

SKU CH-MWGW-NY1ZJ

Replacement CMOS RTC battery restores BIOS settings for HP Pavilion dm3-1140us laptops

  • Battery typeLithium
  • Replaces faulty CMOS battery for HP Pavilion dm3-1140us
  • Lithium chemistry provides reliable RTC backup power
  • Tested before shipping to ensure functionality
  • Supplied as single replacement unit for motherboard
  • New condition guarantees full rated lifespan

HP Pavilion dm3-1140us CMOS Battery

This DBTLAP lithium cell is a direct replacement CMOS RTC battery for the HP Pavilion dm3-1140us laptop. It restores the real-time clock and BIOS settings when the original coin cell is depleted. The part is new and tested before shipping. It is intended for motherboard-level repair, not for the main laptop power battery.

Build Quality and Connector Fit

The battery uses a standard lithium chemistry and a connector that matches the dm3-1140us motherboard header. No soldering is required; the plug-in design allows a straightforward swap during a motherboard service. Each unit is checked for voltage before it leaves the supplier. The package includes one battery only.

Upgrade Context and When to Replace

This component replaces a dead or leaking CMOS cell that causes date resets, BIOS checksum errors or boot failures on the dm3-1140us. The jump is worth it when the laptop loses time while powered off or refuses to hold BIOS changes. It is not for buyers who need a main power battery or who are servicing a different HP model.

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 this CMOS battery use a standard lithium coin-cell interface for the HP Pavilion dm3-1140us?

Yes, it is a lithium CMOS RTC battery designed to replace the original coin cell on the motherboard of the HP Pavilion dm3-1140us.

What physical format does this battery have to fit the motherboard holder?

It is a standard coin-cell CMOS battery sized to seat directly in the motherboard battery socket of the HP Pavilion dm3-1140us.

How is this battery installed and what common mistake should be avoided?

Remove the old cell from the motherboard socket, insert the new lithium battery with the positive side facing up, and ensure it clicks securely into place.

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