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Small square CMOS backup battery with wire connector, 20 by 20 by 3.8 mm, green circuit board finish

Cameron Sino CMOS Backup Battery 200mAh 0.60Wh for Medion Akoya E1312 MD97690 ThinkPad R40 2681 2682 2683

SKU CH-CAKT-X15KZ

Replaces the CMOS backup battery in Medion Akoya E1312, MD97690 and ThinkPad R40 2681, 2682, 2683 models with a 200mAh 0.60Wh unit

  • Keeps CMOS settings alive with 200 mAh 0.60 Wh capacity
  • Exact fit for Medion Akoya E1312 MD97690 and ThinkPad R40 2681 2682 2683
  • Built-in protection against overcharge over-discharge and short circuit
  • Ready to install with fully decoded chip matching original spec
  • Certified to ISO 9001 RoHS and CE quality standards

Compatible Models

This CMOS backup battery replaces the original cell in Medion Akoya E1312 and MD97690 notebooks as well as ThinkPad R40 models 2681, 2682 and 2683. It restores system clock and BIOS settings when the main battery is removed. The 200mAh capacity and 3.0V output match factory specifications. A fully decoded chip ensures proper communication with the laptop.

Buyers Needing Other Form Factors

This part suits owners of the listed Medion and ThinkPad models who need a direct CMOS replacement. It does not suit users whose devices require a different voltage, connector layout or physical size. Builders working on desktop motherboards or other laptop series should verify the exact part number before ordering. The 20.00 x 20.00 x 3.80mm dimensions limit compatibility to the named systems.

200mAh 3.0V Specification

The decisive specification is the 200mAh capacity at 3.0V in a 20.00 x 20.00 x 3.80mm package. This exact combination determines whether the battery fits the CMOS holder and maintains the real-time clock correctly. ISO9001, RoHS and CE certifications confirm manufacturing quality. Overcharge, over-discharge and short-circuit protection are built in for safe operation.

Highlights

  • Keeps CMOS settings alive with 200 mAh 0.60 Wh capacity
  • Exact fit for Medion Akoya E1312 MD97690 and ThinkPad R40 2681 2682 2683
  • Built-in protection against overcharge over-discharge and short circuit
  • Ready to install with fully decoded chip matching original spec
  • Certified to ISO 9001 RoHS and CE quality standards

Specifications

BrandCameron Sino
ModelVersa E680, Versa M400

Questions about this item

What laptop models does this 200mAh 3.0V CMOS battery replace?

It replaces the CMOS backup battery in Medion Akoya E1312, MD97690 and IBM ThinkPad R40 2681, 2682, 2683 models.

Will this 20.00 x 20.00 x 3.80mm battery fit the original CMOS socket on my ThinkPad R40?

Yes, the dimensions match the original specification and the fully decoded chip works like the original battery.

How can I verify the 0.60Wh battery is working after installation?

The system clock and BIOS settings will retain time and configuration after the laptop is powered off and unplugged.

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