BTI HP-PB640G2 10.8V 37Wh Li-Ion Battery for HP ProBook 640/645/650/655

Keep your HP ProBook ready for work anywhere with the BTI HP-PB640G2 replacement battery. This 10.8V 37Wh Li-Ion battery is designed to deliver reliable performance for busy professionals who depend on long-lasting power in their ProBook 640 G2/G3, 645 G2/G3, 650 G2/G3, and 655 G2/G3 laptops. Engineered as a high-quality OEM-compatible battery, it offers seamless compatibility with the original components while providing a cost-effective alternative to OEM parts. Whether you are a student, remote worker, or field professional, this BTI battery helps you stay productive by extending your notebook’s run time between charges. With its robust Li-Ion chemistry and protective electronics, you can count on stable voltage delivery, consistent capacity, and safer operation across daily tasks, from document editing to presentations and multi-tab browsing.

• Compatibility: Specifically engineered for HP ProBook models including 640 G2, 640 G3, 645 G2, 645 G3, 650 G2, 650 G3, 655 G2, and 655 G3, ensuring a snug fit, balanced weight, and uninterrupted performance.
• High-quality Li-ion cells: Built to deliver stable power with strong cycle life and minimal memory effect, providing dependable run time and consistent performance throughout the battery’s lifespan.
• OEM-part numbers and compatibility: Matches OEM references 801517-421, 801517-541, 801554-001, 801554-002 and corresponding CI03, CI03XL, T7B31AA, CI03048XL-PR, ensuring broad compatibility with HP service parts and authorized retailers.
• Safety and protective features: Includes built-in protection against overcharge, over-discharge, short-circuit, and overheating, helping safeguard your HP ProBook and its data during daily use and charging cycles.
• Easy installation and reliable service: A straightforward replacement battery designed to fit the ProBook lineup with minimal downtime; a practical, ready-to-go upgrade that sustains productivity without the need for complex tools.

Technical Details of BTI HP-PB640G2 Battery

• Model: BTI HP-PB640G2
• Voltage: 10.8V
• Capacity: 37WHR
• Chemistry: Li-ion
• Type: Replacement Battery
• OEM-compatible references: 801517-421, 801517-541, 801554-001, 801554-002; CI03, CI03XL, CI03048XL-PR, T7B31AA
• Compatible HP ProBook models: 640 G2, 640 G3, 645 G2, 645 G3, 650 G2, 650 G3, 655 G2, 655 G3
• Form factor: External notebook battery designed for easy insertion into the ProBook bay
• Safety features: Built-in protection circuitry for overcharge, short-circuit, and thermal management

How to Install BTI HP-PB640G2 Battery

Step 1 – Power down and prepare: Shut down your HP ProBook completely, disconnect from any power source, and save your work. Place the laptop on a clean, flat surface with adequate lighting to support a safe replacement.

Step 2 – Access the battery bay: Flip the device over and locate the service panel or battery cover. Depending on your model, you may need to remove a single back plate or the entire bottom cover. Use the appropriate screwdriver to remove the screws and keep them in a safe place.

Step 3 – Remove the old battery: Detach any connectors or latches securing the existing battery. Carefully lift the old battery from its bay, taking care not to pinch cables or damage surrounding components.

Step 4 – Install the new BTI battery: Align the new battery to the bay and gently slide it into place until the connectors seat firmly. Reconnect any cables and re-engage locking tabs if present. Make sure the battery sits flat and secure within the chassis.

Step 5 – Reassemble and test: Replace the bottom cover or service panel and tighten the screws. Connect the charger, power on the notebook, and verify battery recognition in the operating system. Allow the battery to reach full charge before heavy use to ensure accurate calibration and optimal performance.

Step 6 – Care and maintenance: To maximize life, avoid exposing the battery to extreme temperatures for extended periods, calibrate periodically by performing a full discharge and recharge cycle as needed, and store in a cool, dry place when not in use for extended periods.

Frequently asked questions

• Q: Is the BTI HP-PB640G2 compatible with all HP ProBook models?

  A: This battery is designed for a specific range of HP ProBook models, including 640 G2, 640 G3, 645 G2, 645 G3, 650 G2, 650 G3, 655 G2, and 655 G3. Always verify model compatibility using your device’s battery part number or HP documentation before purchase.

• Q: What are the key advantages of choosing a BTI replacement battery over the OEM part?

  A: BTI replacement batteries offer dependable power, cost savings, and broad compatibility with a focus on quality Li-ion cells, protective circuitry, and reliable performance. They’re designed to deliver strong cycle life and consistent power without requiring proprietary tools or procedures.

• Q: How do I maximize the life of my BTI HP-PB640G2 battery?

  A: For best results, keep the battery within recommended temperatures, avoid deep discharges, perform calibrated charging cycles periodically, and use the provided battery within the laptop’s supported operating ranges. Regularly update the BIOS and maintain proper charging habits.

• Q: Does this battery come pre-charged?

  A: Replacement batteries typically ship with a partial charge and will require a full initial charge. Connect to the charger and allow the battery to reach full capacity before heavy use to ensure accurate calibration and extension of lifespan.

• Q: How can I identify the right OEM part number for my HP ProBook?

  A: Check your device’s battery label, service manual, or HP support resources for the exact part numbers such as 801517-421, 801517-541, 801554-001, and 801554-002. Cross-reference with the CI03, CI03XL, or T7B31AA designations to confirm compatibility.