Replacement Battery Specification
- Battery Model: T440P
- Capacity: 100WH / 8960mAh (9 Cells)
- Voltage: 11.1V
- Battery Type: Li-ion
- Cell: Made in China, high quality guarantee
- Color: Black
- Condition: Replacement Battery (100% Brand New, 1-year warranty!)
Replace Part Number
- 45N1144
- 45N1145
- 45N1148
- 45N1149
- 45N1150
- 45N1151
- 45N1152
- 45N1153
- 45N1158
- 45N1159
- 45N1160
- 45N1769
- 45N1779
Compatible Laptop Model
- For Lenovo ThinkPad T440P
- For Lenovo ThinkPad T540P
- For Lenovo ThinkPad W540
- For Lenovo ThinkPad W541
- For Lenovo ThinkPad L440
- For Lenovo ThinkPad L540
Product Features
- Extended High Capacity: 100Wh/8960mAh 9-cell configuration delivers maximum runtime for demanding workstation applications and all-day mobile productivity
- Premium Li-ion Cells: High-grade lithium-ion technology provides stable voltage output and exceptional charge retention over hundreds of cycles
- Professional Workstation Power: Engineered for ThinkPad W-series mobile workstations and high-performance T-series business laptops requiring extended battery life
- OEM-Grade Construction: Meets or exceeds Lenovo original specifications for voltage, capacity, safety standards, and physical dimensions
- Multi-Layer Protection: Advanced battery management system with overcharge, over-discharge, short circuit, overcurrent, and thermal protection circuits
- Wide Compatibility: Compatible with 13 different OEM part numbers across six ThinkPad series, ensuring broad fitment for business and workstation models
Why Choose This Battery
This premium high-capacity replacement battery is engineered for professionals who demand maximum mobile runtime from their Lenovo ThinkPad workstations and business laptops. Whether you're a CAD engineer running intensive 3D modeling applications, a data analyst processing large datasets, a field consultant requiring all-day battery life, or an IT professional managing remote infrastructure, this 100Wh battery delivers the extended power your workflow demands.
Built with premium lithium-ion cells and sophisticated battery management circuitry, this 9-cell replacement ensures optimal integration with ThinkPad's advanced power management and thermal control systems. The 100Wh capacity—the maximum allowed for airline carry-on—provides substantially longer runtime than standard 6-cell batteries, supporting extended work sessions for CAD/CAM software, virtual machines, data analysis tools, and multi-monitor setups. Each battery undergoes comprehensive quality validation including capacity testing, voltage regulation verification, safety circuit validation, and physical fit confirmation.
Backed by a comprehensive 1-year warranty and compatible with both T-series business laptops and W-series mobile workstations, this battery offers exceptional value for professionals requiring maximum mobile productivity. The precision-engineered housing ensures secure mounting and reliable electrical connection, while multi-layer protection circuits safeguard both the battery and your valuable ThinkPad from electrical faults and thermal events during intensive workloads.