Replacement internal battery for Lenovo ThinkPad X240, X250, T440, T450 series. Replaces 45N1108, 45N1109, 45N1110 — 11.1V 2.09Ah 24Wh Li-ion with PC+ABS fireproof housing and multi-layer protection circuits. 1-year warranty included.
Replacement Battery Specification
- Battery Model: X240
- Capacity: 2.09Ah / 24Wh
- Voltage: 11.1V
- Battery Type: Li-ion (3 cells, made in Japan)
- Color: Black
- Condition: Replacement Battery (100% Brand New, 1-year warranty!)
Replace Part Numbers
- 45N1108
- 45N1109
- 45N1110
- 45N1111
- 45N1112
- 45N1113
- 121500144
- 121500143
Compatible Laptop Models
- ThinkPad X240
- ThinkPad X240S
- ThinkPad X230S
- ThinkPad X250
- ThinkPad X260
- ThinkPad X270
- ThinkPad T440
- ThinkPad T440S
- ThinkPad T450
- ThinkPad T450S
- ThinkPad L450
- ThinkPad L450S
Product Features
- PC+ABS Fireproof Housing: Environmentally safe material with excellent fire resistance
- High-Capacity Japanese Cells: 2.09Ah / 24Wh output optimized for full-day business use
- 1:1 Mold Refinement: Precision fit to match your ThinkPad notebook perfectly
- Multi-Layer Protection: Overcharge, over-discharge, and short-circuit protection built in
- Plug-and-Play: No drivers or software required — install and charge immediately
Why Choose This Battery
Engineered specifically for Lenovo ThinkPad X240 and T440 series business laptops. Stable 11.1V output with over 500 charge cycles. Backed by a 1-year warranty for complete peace of mind.