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Small silver lithium coin cell battery for Dell Latitude 6520

DBTLAP

DBTLAP CMOS RTC Battery for Dell Latitude 6520

SKU CH-3B2D-ZJFFJ

Keeps system clock and BIOS settings alive on Dell Latitude E6520 laptops

  • Battery TypeLithium
  • Replaces faulty CMOS battery to restore BIOS settings
  • Lithium cell provides reliable real-time clock power
  • Tested before shipping ensures dependable operation
  • Designed for Dell Latitude 6520 motherboard compatibility
  • Single replacement unit includes everything needed for installation

Compatible CMOS RTC Battery for Latitude 6520

This lithium coin cell replaces the CMOS BIOS RTC battery on Dell Latitude E6520 laptop motherboards. It is a dedicated motherboard component, not a main laptop power pack. The unit arrives new and tested before shipping to ensure reliable real-time clock operation.

Verify motherboard layout

Confirm the existing CMOS cell on your Latitude 6520 motherboard matches this replacement type. The battery is designed for the specific board used in that model. Installation requires opening the chassis to access the motherboard socket.

Steady voltage retention over years of continuous

Lithium chemistry provides stable, low-self-discharge performance for the real-time clock and BIOS settings. The cell maintains voltage during long periods when the laptop is unplugged or powered off. It is built for sustained, low-current operation rather than high-drain bursts.

Highlights

  • Replaces faulty CMOS battery to restore BIOS settings
  • Lithium cell provides reliable real-time clock power
  • Tested before shipping ensures dependable operation
  • Designed for Dell Latitude 6520 motherboard compatibility
  • Single replacement unit includes everything needed for installation

Specifications

Battery TypeLithium

Questions about this item

Does the DBTLAP CMOS RTC battery for the 6520 include any cables or mounting hardware, or is it only the coin cell?

The package includes one CMOS battery only; no cables, brackets or additional hardware are supplied.

Is there a choice of capacities or voltages for the DBTLAP CMOS RTC battery, or is a single version supplied?

Only one version is supplied — a standard lithium coin cell that matches the original specification for the 6520.

Once fitted in the 6520, what does this battery actually maintain while the laptop is off?

It keeps the real-time clock running and preserves BIOS settings such as boot order and system time when main power is removed.

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