
Genuine PA5278U-1BRS Laptop Battery - Premium Power for Toshiba Portégé & Tecra Series
Experience uncompromising performance and reliability with the Genuine PA5278U-1BRS Laptop Battery, specifically engineered for Toshiba's premium business laptops. This original replacement battery delivers the exact power specifications and safety standards required by your Portégé or Tecra notebook, ensuring you stay productive through extended work sessions without being tethered to a power outlet.
Product Highlights:
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Guaranteed Compatibility: Precision-engineered for Toshiba Portégé X30-D, X30-E and Tecra X40-D, X40-E, X40-F series notebooks
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Optimized Power Specifications: Delivers 14.4V voltage and 48Wh capacity, providing the perfect balance of performance and mobility for business professionals
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Authentic OEM Quality: Genuine Toshiba part numbers PA5278U-1BRS and 3ICP5/94/68 ensure perfect fit and flawless system integration
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Enhanced Safety Features: Built with premium lithium-ion cells and comprehensive protection against overcharging, overheating, and short circuits
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Lightweight & Efficient: Maintains the slim, portable design of your business laptop while delivering reliable all-day power
Why Choose This Genuine PA5278U-1BRS Battery?
Your Toshiba business laptop demands the reliability of genuine components:
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All-Day Productivity: 48Wh capacity provides substantial runtime for meetings, travel, and remote work
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Perfect System Integration: Seamless compatibility with your laptop's advanced power management system
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Business-Grade Reliability: Meets Toshiba's rigorous quality standards for professional environments
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Investment Protection: Maintain your device's performance and value with authentic OEM components
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Peace of Mind: Advanced safety features ensure worry-free operation in any business setting
Power Your Business Performance - Choose Genuine Toshiba Quality and Reliability!

Compatibility
Replacement for Part Number:
PA5278U-1BRS
Compatible with Laptop Models:
Toshiba Portege X30-D X30-E X30-F Series,
Toshiba Tecra X40-D X40-E X40-F Series
| Battery Capacity | 4080mAh/48Wh |
| Voltage | 11.4V |
| Model No | PA5278U-1BRS |
| Warranty | 12 Months |
🔋 Lithium-Ion Battery Conditioning
For optimal electrochemical performance, new lithium-ion batteries should undergo 2–3 complete charge and discharge cycles before reaching full capacity.
This stabilization phase allows the internal cell chemistry to achieve balanced ion distribution, ensuring maximum runtime, stable voltage output, and extended cycle life.
After this initial conditioning period, no further full discharge cycles are required.
🛡 Premium Warranty Protection
- 12-Month Limited Manufacturer Warranty
- Up to 30-Day Return Guarantee (Policy Based)
- Replacement for defective or misrepresented items
- Dedicated customer service response within 24 hours
🚚 Professional Shipping Standards
- Orders placed Monday–Friday are processed within 1–2 business days. Orders placed on weekends are processed the following Monday.
- Tracking information appears in your order within 1–2 business days after dispatch.
- Transit time varies by region and logistics carrier
- Please verify your shipping address before order confirmation
- Address changes are not possible once shipment is dispatched
📌 Product-Specific Notice
📩 Customer Care Commitment
We are committed to delivering professional-grade battery solutions and responsive after-sales service. If you experience any issues, please contact our support team before leaving feedback.
✓ Safety & Quality Assurance
- Built-in protection against overcharging, overheating, and short circuits.
- Shipped in compliance with IATA regulations for lithium batteries.
- Compatible with OEM chargers. No firmware modification required.
Questions about compatibility? Contact us with your device model number before ordering.
Cao Chuanping
Power Systems Consultant · 8+ years in replacement battery sourcing & evaluation · View profile →
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