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Small coin-cell CMOS battery for HP Mini 2140

DBTLAP

DBTLAP CMOS RTC Battery for HP Mini 2140

SKU CH-K47D-DC9Q6

A lithium CMOS RTC battery that keeps the HP Mini 2140 system clock and BIOS settings running

  • Battery TypeLithium
  • Keeps system clock accurate with lithium CMOS battery
  • Direct replacement for HP Mini 2140 motherboard
  • Pre-tested unit ensures reliable BIOS memory retention
  • Fixes faulty or cracked CMOS battery issues
  • Single battery included for straightforward installation

HP Mini 2140 CMOS battery

The DBTLAP lithium cell is a direct replacement for the real-time clock battery on the HP Mini 2140 motherboard. It restores BIOS settings retention and system time when the original coin cell is exhausted or damaged. The part is intended for technicians or owners servicing this specific laptop model. Buyers who need a main laptop power battery or a cell for a different motherboard should look elsewhere.

Sustained load behaviour

The lithium chemistry provides a stable low-voltage supply over long periods, keeping CMOS memory alive while the notebook is unplugged or powered off. It is tested before shipping to confirm reliable voltage output under continuous standby drain. The cell is not designed for high-current bursts or primary system power.

Installation notes

Installation requires opening the laptop chassis to reach the motherboard socket, so basic disassembly skill and anti-static precautions are necessary. Polarity must match the original orientation to avoid damage. The package includes only the single battery; no tools, cables or adhesive are supplied.

Highlights

  • Keeps system clock accurate with lithium CMOS battery
  • Direct replacement for HP Mini 2140 motherboard
  • Pre-tested unit ensures reliable BIOS memory retention
  • Fixes faulty or cracked CMOS battery issues
  • Single battery included for straightforward installation

Specifications

Battery TypeLithium

Questions about this item

Does the lithium CMOS battery for the HP Mini 2140 generate noticeable heat or draw extra power during continuous operation?

No, the lithium CMOS battery only supplies a tiny standby current to the real-time clock and produces no measurable heat or power draw.

What must I already have in the HP Mini 2140 for this replacement CMOS battery to work?

You need the original motherboard with its two-pin CMOS header intact so the new battery can plug in directly.

Will this CMOS battery keep the BIOS settings on an older HP Mini 2140 that still uses the original motherboard?

Yes, it is a direct replacement for the factory CMOS cell and will maintain date, time and BIOS configuration on that motherboard.

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