Compatible Battery 75 for Thinkpad E430 E440 E530 E540 E545 B590
Technical Specifications
| Spec | Detail |
|---|
| Brand | Unbranded (quality third‑party, not made by ) |
| Battery Type | 75 (6‑cell) |
| Chemistry | Li‑ion, 6‑cell |
| Voltage | 11.1 V nominal |
| Capacity | 4400 mAh • ≈ 49 Wh |
| Smart Features | SMBus controller supports Power Manager diagnostics |
| Cycle Life | 400–500 charge cycles (typical) |
| Color / Finish | Matte black |
Interchangeable Part Numbers
L11S6Y01 • L11L6Y01 • L11S6F01 • 45N1044 • 45N1045 • 45N1047 • 0C52861
✅ Confirmed Compatibility
Fits any ThinkPad that originally shipped with a “75” or “75+” 6‑cell pack.
✓ ThinkPad T430, T430 i
✓ ThinkPad T530, T530 i
✓ ThinkPad W530
✓ ThinkPad L430, L530
✓ Any other model that uses the 75 / 75+ bay battery
Key Features
- Factory‑Fresh Cells — full 4400 mAh capacity for restored run‑time
- Smart Controller — accurate wear and cycle reporting in Power Manager
- Exact‑Fit Housing — same latch, LED gauge, and charge contacts as the OEM pack
- Integrated Safety — over‑charge, over‑discharge, over‑temp, and short‑circuit protection
