BTI Battery for Notebook — 5400 mAh, 40 Wh, 7.4 V Rechargeable Li-ion Battery

The BTI Battery is a high-performance notebook power solution designed for reliability, long life, and quick recharging. Built to power your everyday tasks—from emails and spreadsheets to design workloads and on-the-go presentations—this rechargeable lithium-ion battery delivers steady energy when you need it most. With a capacity of 5400 mAh (40 Wh) at 7.4 V DC, it offers a solid balance of energy density and safety, ensuring your notebook stays productive through extended work sessions and travel. The proprietary battery size is crafted to fit select notebook models securely, helping to minimize connection issues and maximize overall performance. If speed matters, you’ll appreciate the efficiency of its charging profile, which reduces downtime and gets you back to work faster after a recharge. Engineered with a four-cell configuration, the BTI Battery emphasizes stable power delivery, optimized heat management, and dependable lifecycle so you can rely on it day after day.

• Long-lasting energy for nonstop productivity: With 5400 mAh of capacity and 40 Wh of energy, this BTI Battery delivers sustained power for long work sessions, creative tasks, and mobile usage. The four-cell design helps distribute energy evenly, reducing voltage drops and providing consistent performance across intensive applications. Expect reliable runtimes that let you work, brainstorm, or stream without constantly hunting for an outlet.
• Faster recharge times to minimize downtime: Designed to take lesser time to charge than comparable models, the BTI Battery minimizes downtime between sessions. A quicker top-up means you can spend more time working and less time waiting for your notebook to reach full capacity. This faster charging capability is especially valuable during travel, at meetings, or in busy office environments where every minute counts.
• Proprietary battery size for better fit and reliability: The BTI Battery uses a proprietary form factor tailored to compatible notebooks, ensuring a snug fit, secure electrical connection, and dependable performance. This design focus reduces the risk of loose contacts, alignment issues, and unexpected shutdowns, so you can rely on a stable power source in daily use.
• Optimized 4-cell configuration for balanced performance: Four cells provide a balanced blend of energy density and heat management. This arrangement supports stable voltage supply during demanding tasks, minimizes thermal hotspots, and extends the battery's effective life. The result is smoother performance under load and better endurance across the notebook’s lifecycle.
• Safety, durability, and dependable everyday use: The BTI Battery is built with safety in mind, featuring robust construction and a rechargeable Li-ion chemistry designed to handle regular charging cycles. It’s engineered to meet general safety standards for notebook batteries, helping to protect against overcharge, short circuits, and unexpected power loss—so you can focus on your work with confidence.

Technical Details of BTI Battery

• Battery type: Rechargeable Li-ion
• Capacity: 5400 mAh
• Energy: 40 Wh
• Voltage: 7.4 V DC
• Cells: 4
• Form factor: Proprietary notebook battery size for compatible models
• Compatibility: Designed for notebooks that use the proprietary BTI battery form factor
• Manufacturer: BTI

How to install BTI Battery

Installing the BTI Battery is straightforward and quick, designed for users who want a hassle-free power upgrade. Before you begin, ensure your notebook is powered off and unplugged from any charger. If your notebook features a bottom-access battery bay, locate the battery release latch or slide mechanism. Remove any existing battery carefully by disengaging the latch(s) and lifting the old unit away from its housing. Align the BTI Battery with the connector and the notch pattern in the bay—do not force it. Gently press the battery into place until you hear or feel a firm click, then engage the release latch to secure the battery. Reconnect the charger if needed and power on your notebook to confirm a proper boot and battery recognition. If your device has a non-removable battery, consult your notebook’s user manual for the correct procedure or seek professional assistance. After installation, monitor the first few charging cycles to ensure the battery charges smoothly and holds power as expected. For optimal longevity, store and operate the battery within the manufacturer-recommended temperature range and avoid exposing it to excessive heat or moisture.

Frequently asked questions

• Q: What is the BTI Battery’s capacity and energy? A: The BTI Battery provides 5400 mAh of capacity and 40 Wh of energy, delivering strong runtime for a range of notebook tasks while maintaining a compact, portable form factor.
• Q: Is this battery compatible with all notebooks? A: The BTI Battery is designed for notebooks that use the proprietary BTI battery size. It is important to verify compatibility with your specific model to ensure a secure fit and reliable operation.
• Q: How long does it take to charge? A: The BTI Battery is engineered to charge faster than many competing models, reducing downtime and helping you resume work sooner after a charge cycle.
• Q: How should I care for this battery to maximize its lifespan? A: Store and operate within recommended temperatures, avoid exposure to extreme heat, discharge and recharge following standard practice, and use a compatible charger. Regularly calibrating the battery through full-charge cycles can help maintain accurate power readings over time.
• Q: Is the BTI Battery safe? A: Yes. The battery uses rechargeable Li-ion chemistry and is built with safety protections to guard against common issues like overcharge and short circuits. Always handle with care and follow the installation instructions for best results.
• Q: What should I do if my notebook doesn’t recognize the new battery? A: Ensure the battery is properly seated and secured in the bay, check the battery contacts for cleanliness, and perform a full power cycle by powering off, disconnecting, and reconnecting the battery. If issues persist, consult your device’s support resources or reach out to BTI customer service.