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Black rectangular ThinkPad battery, six cells, 5200 mAh 10.8 V

Lenovo Refurbished

Lenovo 45N1147 ThinkPad Battery 57+ (6 Cell) 5200 mAh 10.8 V

SKU CH-AND9-ZC947 MPN 45N1147

Refurbished 6-cell lithium-ion pack rated at 5200 mAh and 10.8 V for ThinkPad T440p, L440 and L540 notebooks

  • Plug typeBattery
  • Rechargeable lithium-ion cell powers ThinkPad notebooks
  • 5200 mAh capacity extends work sessions away from mains
  • 8 V output matches original OEM specification
  • Fits T440p, L440 and L540 models directly
  • Slim 0.8 inch profile keeps laptop profile thin

Product Identity

This refurbished Lenovo 45N1147 ThinkPad Battery 57+ is a six-cell lithium-ion power pack built for compatible Lenovo ThinkPad notebooks. It serves owners of supported models who need a replacement or spare unit.

Deciding Specification

The proprietary form factor and 10.8 V DC output voltage are the critical match points; the battery will only fit and function correctly in notebooks designed for this exact OEM design.

Capacity and Headroom

Rated at 5200 mAh, the pack delivers typical runtime for everyday office workloads on the listed T440p, L440 and L540 systems. Heavier multi-tasking or sustained high brightness will deplete the charge more quickly.

How it compares

Measured against everything we stock in Switch Modules, Transceivers & Add-Ons, at today’s prices. Recalculated every night.

Price $48.99
Cheaper than about 62% of the 1,517 comparable items (median $68.99).

Specifications

Product
Brand nameLenovo
Power
Plug typeBattery
Size & build
Shipping weight0.91 kg
Package size254 × 102 × 51 mm

Questions about this item

How long will the 5200 mAh capacity actually run my ThinkPad?

The 5200 mAh rating at 10.8 V provides the same energy as the original 57+ battery; actual runtime varies with screen brightness, workload and battery age.

Does this battery use a standard connector or a proprietary one?

It uses a proprietary ThinkPad connector that fits directly into the battery bay of compatible notebooks.

Will the 8.1" width fit my T440p without modification?

Yes, the 8.1" width matches the original 57+ form factor for T440p, L440 and L540 models.

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