DGFTB PA5278U-1BRS Laptop Battery User Manual

1. Product Overview

The DGFTB PA5278U-1BRS is a high-quality replacement Li-ion battery designed for specific Toshiba and Dynabook laptop models. This manual provides essential information for safe and effective use, installation, and maintenance.

Image: DGFTB PA5278U-1BRS laptop battery with its retail packaging, highlighting quality and service.

• Battery Type: Li-ion
• Voltage: 11.4V
• Capacity: 48Wh / 4080mAh
• Compatible Part Numbers: PA5278U-1BRS, PT28U-0LN03X, PT274U-01N001

Image: Close-up view of the battery's label, showing model number, voltage, and capacity.

2. Compatible Laptop Models

This battery is compatible with a wide range of Toshiba and Dynabook laptop models. Please verify your laptop's model number against the list below to ensure compatibility.

For TOSHIBA Portege X30 Series:

• Portege X30-D
• Portege X30-D-10L, Portege X30-D-10M
• Portege X30-E
• Portege X30-E-10G, Portege X30-E-10U
• Portege X30-F-15U, Portege X30-F1352

For TOSHIBA Tecra X40 Series:

• Tecra X40-D
• Tecra X40-D-10E
• Tecra X40-E-013, Tecra X40-E-108
• Tecra X40-F, Tecra X40-F-10D

For DYNABOOK Portege X30-F Series:

• Portege X30-F-10L, Portege X30-F-10N

3. Features and Quality Assurance

The DGFTB battery is engineered with high-quality components to ensure reliable performance and safety.

• Grade A Cells: Utilizes high-quality cells to minimize the risk of battery leakage and ensure stable power output.
• Built-in Circuit Protection: Integrated protection mechanisms enhance safety during use and extend the battery's lifespan.
• Gold-plated Connector: Features a gold-plated connector for durable and stable output.
• Precise Hole Position: Designed with precise hole positions for secure fitting.
• Durable Materials: Constructed with composite materials, high temperature resistance, and corrosion resistance.

Image: Diagram illustrating the quality assurance features including over-heat protection, over-charge protection, premium microchip, and Class A protection.

Image: Illustration of the battery's internal components (main chip, protection chip, resistance, temperature sensing, conductor copper sheet) and benefits such as fast charging, stable output, longer discharge time, low power consumption, and over 500 discharge cycles.

4. Installation Guide

Initial Installation and Calibration:

1. Preparation: Before beginning, ensure your laptop is powered off and disconnected from any power source. It is recommended to wear anti-static gloves to prevent damage from static electricity.
2. Access Battery Compartment: Carefully open your laptop's back panel or battery compartment. Refer to your laptop's specific service manual for detailed instructions on accessing the battery.
3. Remove Old Battery: Disconnect the old battery's connector from the motherboard. Unscrew any retaining screws and gently lift the old battery out.
4. Install New Battery: Place the new DGFTB battery into the compartment, ensuring it aligns correctly with the mounting points. Secure it with any screws removed earlier.
5. Connect Battery: Reconnect the battery's cable firmly to the motherboard. Ensure the interface is fully connected.
6. Reassemble Laptop: Carefully close and secure the laptop's back panel.
7. Initial Calibration (Important):
   • After installation, connect the AC adapter and fully charge the battery to 100%.
   • Once fully charged, disconnect the AC adapter and use the laptop on battery power until the battery discharges to 5% (do not let it discharge to 0% and shut down).
   • Reconnect the AC adapter and charge the battery to 95%.
   • Repeat this discharge-charge cycle 3-4 times to calibrate the new battery and optimize its performance.

Image: Visual representation of a laptop battery being installed, with various screwdrivers shown, indicating the need for tools.

Image: Detailed views of the battery's gold-plated connector and a fixed position mounting point, emphasizing precise design for secure installation.

5. Finding Your Laptop Model

To ensure you have the correct battery or for troubleshooting, it's important to know your laptop's exact model number. Here's how to find it on Windows:

1. Step 1: Press the Windows key + R simultaneously to open the Run dialog box.
2. Step 2: In the Run dialog box, type msinfo32 and click OK. This will open the System Information window.
3. Step 3: In the System Information window, locate the "System Model" entry. The value next to it is your laptop's model number.

Image: Step-by-step visual guide on how to find your laptop's model number using the 'msinfo32' command in Windows.

6. Maintenance and Care

Proper care can extend the life and performance of your DGFTB laptop battery:

• Regular Calibration: Perform the discharge-charge calibration cycle (as described in Section 4) every 2-3 months to maintain battery accuracy.
• Avoid Extreme Temperatures: Do not expose the battery to extreme heat or cold. Optimal operating temperature is between 10°C and 35°C (50°F and 95°F).
• Storage: If storing the battery for an extended period, charge it to about 50-60% and store it in a cool, dry place. Recharge it to 50-60% every few months.
• Avoid Full Discharge: Do not consistently drain the battery to 0%. This can reduce its lifespan.
• Clean Contacts: Periodically clean the battery contacts with a dry cloth to ensure good connection.

7. Troubleshooting

If you encounter issues with your new battery, consider the following common solutions:

If issues persist after trying these steps, please contact DGFTB customer support.

8. Specifications

9. Warranty and Support

DGFTB stands behind the quality of its products. This battery comes with a 12-month reset warranty.

• Warranty Period: 12 Months
• Customer Service: 24/7 hours customer service is available for any inquiries or support needs.

For technical assistance, warranty claims, or any other questions, please contact DGFTB customer support through the platform where you purchased the product or visit the official DGFTB store page on Amazon:

Visit the DGFTB Store on Amazon

Image: Visuals indicating available customer support and a channel for questions.

10. Product Application

The DGFTB PA5278U-1BRS battery is designed to provide reliable power for your compatible laptop, supporting various daily activities:

Image: Depicts the battery's suitability for various uses such as entertainment (gaming), office work, and leisure activities.

• Entertainment: Enjoy movies, games, and multimedia content without constant power connection.
• Office Work: Maintain productivity during meetings, commutes, or when working remotely.
• Leisure: Browse the web, read, or connect with friends and family on the go.