1. Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of your LJCELL CR2032 CMOS Battery. This battery is designed to maintain the BIOS settings, system time, and date on compatible devices such as Intel NUCs, various laptops, Sony PlayStation 2 (PS2), and PlayStation 3 (PS3) consoles. Please read this manual thoroughly before installation to ensure correct usage and optimal performance.
2. Product Overview
The LJCELL CR2032 CMOS battery is a high-quality, reliable power source for maintaining critical system information in electronic devices. It features a standard CR2032 cell encased in a protective plastic housing, connected by a 2-wire cable to a 1.25mm pitch connector (model MX51021-0200-B). Each battery is designed with safety in mind, including insulation for positive and negative electrodes and double-sided tape for secure mounting.
Figure 2.1: Two LJCELL CR2032 CMOS batteries. Each battery is yellow, labeled "LJCELL CMOS battery for laptop PART:LJ-CMOS-2", and features a red and black wired connector.
Figure 2.2: Detailed design features of the LJCELL CMOS battery. This image highlights the plastic case protecting against short-circuiting, the insulated positive and negative electrodes, and the double-sided tape on the back for secure device attachment.
3. Setup and Installation
Replacing a CMOS battery requires careful handling of electronic components. Always refer to your device's specific service manual for detailed instructions on accessing and replacing the CMOS battery. The following are general guidelines:
- Power Off and Disconnect: Completely power off your device and disconnect it from all power sources. For laptops, remove the main battery.
- Discharge Static Electricity: Before touching any internal components, discharge any static electricity from your body by touching a grounded metal object. Consider using an anti-static wrist strap.
- Locate the Old CMOS Battery: Open your device's casing (laptop, console, NUC) and locate the existing CMOS battery. It is typically a small, coin-shaped battery connected by wires to the motherboard.
- Disconnect the Old Battery: Carefully disconnect the connector of the old CMOS battery from the motherboard. Note the orientation of the connector.
- Connect the New Battery: Connect the LJCELL CR2032 CMOS battery to the motherboard. Ensure the connector is inserted correctly and securely. Pay close attention to the polarity.
Figure 3.1: Connector Polarity. This diagram illustrates a 2-pin 1.25mm pitch connector with two wires. The red wire is indicated as Positive (+), and the black wire as Negative (-). It emphasizes paying attention to the order in which the connectors are attached to the red and black wires.
Figure 3.2: Connector Dimensions. This image provides a technical drawing of the MX51021-0200-B connector, showing its dimensions and a 1.25mm pitch.
- Secure the Battery: Use the double-sided tape on the back of the battery to fix it securely within the device, ensuring it does not interfere with other components.
- Reassemble and Test: Carefully reassemble your device. Power it on and enter the BIOS/UEFI settings to verify that the time, date, and other settings are now retained. You may need to set the correct time and date initially.
Figure 3.3: Applicable Equipment. This image shows the LJ-CMOS-2 CMOS battery with its connector, next to an Intel NUC device, indicating compatibility.
4. Operating Instructions
The LJCELL CR2032 CMOS battery operates passively once installed. Its primary function is to provide continuous power to the Complementary Metal-Oxide-Semiconductor (CMOS) memory on your device's motherboard. This memory stores essential BIOS/UEFI settings, including the system time, date, and hardware configuration, even when the device is powered off or disconnected from the main power supply. No user interaction is required for its operation after successful installation.
5. Maintenance
- Battery Lifespan: The LJCELL CR2032 CMOS battery is designed for long-term use, typically lasting up to 8 years. Replacement is generally only necessary when the device begins to lose its time/date settings or BIOS configurations upon power loss.
- Non-Rechargeable: This battery is a primary cell and is not rechargeable. Attempting to recharge it can cause damage to the battery and potentially the device.
- Storage: Store unused batteries in a cool, dry place, away from direct sunlight and extreme temperatures. Keep them in their original packaging until ready for use to prevent short circuits.
- Disposal: Dispose of used batteries according to local regulations for electronic waste. Do not incinerate or expose to high temperatures.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System time/date resets after power off. | Depleted or faulty CMOS battery. | Replace the CMOS battery with a new LJCELL CR2032 battery. |
| BIOS/UEFI settings revert to default. | Depleted or faulty CMOS battery. | Replace the CMOS battery. |
| New battery does not resolve the issue. |
|
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7. Specifications
Figure 7.1: Product Specifications and Features. This image displays key specifications such as battery type (CR2032), capacity (240mAh), cable length (45mm), and connector model (MX51021-0200-B). It also shows the double-sided tape on the back of the battery, noting its 0.2mm thickness for device attachment.
- Battery Type: CR2032
- Battery Cell Composition: Lithium Manganese Dioxide
- Battery Capacity: 240 Milliamp Hours (mAh)
- Cable Length: Approximately 45mm
- Connector Model: MX51021-0200-B (2-pin, 1.25mm pitch)
- Product Dimensions: 2.56 x 0.79 x 0.16 inches (approximate, for the battery unit)
- Item Weight: 0.282 ounces (approximate, per battery)
- Compatibility: Intel NUC, various laptops, Sony PlayStation 2 (PS2), Sony PlayStation 3 (PS3) BIOS RTC.
8. Safety Information
- Do Not Recharge: This battery is a primary cell and is not designed to be recharged. Attempting to recharge it may lead to leakage, fire, or explosion.
- Avoid Short Circuits: Do not short-circuit the battery terminals. Keep batteries in their original packaging until use to prevent accidental short-circuiting.
- Keep Away from Children: CR2032 coin cell batteries can be a choking hazard and are dangerous if swallowed. Keep out of reach of children.
- Proper Disposal: Dispose of used batteries responsibly according to local environmental regulations. Do not dispose of in household waste.
- Temperature: Do not expose batteries to excessive heat, fire, or direct sunlight.
9. Warranty and Support
For any questions regarding the LJCELL CR2032 CMOS Battery, or if you encounter issues not covered in this manual, please contact LJCELL customer support through the retailer where the product was purchased. Please retain your proof of purchase for warranty claims, if applicable. Specific warranty terms may vary by region and retailer.