Shipped from the US warehouse, it only takes 5-7 days.
Replacement Battery Specification
- Battery Model: T430S
- Capacity: 44Wh / 3900mAh
- 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
- 45N1039
- 45N1038
- 45N1037
- 45N1036
- 45N1143
- 42T4846
- 42T4847
- 0A36309
Compatible Laptop Model
- For Lenovo ThinkPad T430S Series
- For Lenovo ThinkPad T430Si Series
- For Lenovo ThinkPad T420S Series
- For Lenovo ThinkPad T420Si Series
Product Features
- Slim ThinkPad Business Performance: 44Wh / 3900mAh lithium-ion battery delivers reliable all-day runtime for Lenovo ThinkPad T430S, T430Si, T420S, and T420Si slim business laptops — ideal for business professionals, executives, and enterprise users who depend on ThinkPad S-series reliability for mobile productivity
- Premium Li-ion Cells: High-quality cells provide stable 11.1V output for consistent ThinkPad performance during business computing, video conferencing, document processing, and travel workloads
- OEM Replacement Quality: Meets or exceeds original Lenovo specifications for voltage, capacity, safety standards, and physical dimensions — direct replacement for 45N1039, 45N1038, 45N1037, 45N1036, 45N1143, 42T4846, 42T4847, and 0A36309
- ThinkPad S-Series Optimized: Specifically engineered for ThinkPad T430S / T430Si / T420S / T420Si slim business laptops for perfect physical fit and reliable battery management system integration
- Advanced Safety Protection: Multi-layer protection circuits guard against overcharge, over-discharge, short circuit, and thermal events during daily business laptop use
- Restore Full Business Runtime: Revive your Lenovo ThinkPad T430S or T420S with a fresh battery that restores full all-day productivity for meetings, business travel, and office work
Why Choose This Battery
Engineered for Lenovo ThinkPad T430S, T430Si, T420S, and T420Si slim business laptops, this 44Wh Li-ion replacement battery ensures reliable all-day power for business professionals, IT administrators, and enterprise users who depend on ThinkPad S-series performance. Perfect for office productivity, business travel, remote work, and enterprise computing requiring consistent and dependable slim laptop runtime.
Key Benefits:
- Compatible with ThinkPad T430S / T430Si / T420S / T420Si — replaces 45N1039, 45N1038, 45N1037, 45N1036, 45N1143, 42T4846, 42T4847, 0A36309
- 44Wh / 3900mAh capacity supports all-day runtime for business productivity and enterprise computing workloads
- Rigorous quality testing ensures capacity, voltage stability, and safety compliance for ThinkPad slim business laptop use
- 1-year warranty and OEM-grade construction for reliable long-term performance in enterprise computing environments
- Precision-engineered housing with multi-layer protection circuits for safe operation during daily business laptop use