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Small round lithium CMOS battery for ASUS EEE Slate EP121

DBTLAP

DBTLAP CMOS Battery for ASUS EEE Slate EP121

SKU CH-J0EA-VVAAR

CMOS backup battery for the ASUS EEE Slate EP121, tested before shipping

  • Battery TypeLithium
  • Compatible with ASUS EEE Slate EP121 model
  • Lithium chemistry provides reliable CMOS power retention
  • Tested before shipping for dependable operation
  • Direct replacement for faulty or broken units
  • Single battery included for immediate installation

Compatible CMOS Battery for EP121

This DBTLAP lithium cell replaces the CMOS BIOS RTC battery on the ASUS EEE Slate EP121 motherboard. It restores the system clock and BIOS settings when the original cell fails. The part is supplied new and tested before shipping. It is not a main laptop battery and will not power the device.

Limits of a Coin-Cell Replacement

A CMOS battery only maintains firmware memory and the real-time clock while the system is off. It cannot run the processor, screen or any other component. If the slate will not boot at all, the fault lies elsewhere. The cell provides no runtime for the tablet itself.

Build and Daily Implications

The battery arrives as a single tested unit ready for motherboard installation. Replacing it requires opening the chassis and handling the board directly. Once fitted, it silently keeps time and settings for years without further attention. No cables or chargers are included.

Highlights

  • Compatible with ASUS EEE Slate EP121 model
  • Lithium chemistry provides reliable CMOS power retention
  • Tested before shipping for dependable operation
  • Direct replacement for faulty or broken units
  • Single battery included for immediate installation

Specifications

Battery TypeLithium

Questions about this item

Is this the correct CMOS battery for the ASUS EEE Slate EP121?

Yes, the DBTLAP CMOS battery is listed as compatible with the ASUS EEE Slate EP121 and is designed as a direct replacement for the motherboard RTC battery.

What does this CMOS battery actually do once installed in the EP121?

It powers the real-time clock and preserves BIOS settings such as date, time and boot order when the main battery is removed or fully drained.

What type of battery technology is used and how does it connect?

The cell uses lithium chemistry and connects to the motherboard via the standard CMOS battery header for the EP121.

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