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Black rectangular lithium-ion laptop battery, 72Wh 11.22V

Beisite

Beisite 72Wh 11.22V laptop battery 45N1136 45N1738

SKU CH-MH36-PY7QJ

72Wh 11.22V lithium-ion replacement battery compatible with ThinkPad X240, X250, T440, T450, T460, T470P, X260, X270 and related series

  • Battery typeLithium-Ion
  • Battery voltage rating11.22 V
  • Battery capacity72 Wh
  • Product colorBlack
  • Product typeBattery
  • 72Wh capacity extends runtime between charges
  • 22V lithium-ion chemistry matches original specifications
  • Replaces 45N1136 and 45N1738 part numbers for direct compatibility
  • Fits ThinkPad X240, X250, T440, T450 and related series
  • Brand-new condition with 12-month manufacturer warranty

72Wh 11.22V ThinkPad replacement battery

This 72Wh lithium-ion pack replaces Lenovo part numbers 45N1136 and 45N1738. It delivers 11.22V to compatible ThinkPad models and arrives in new condition with a black finish. The unit is built to the 68+ specification and covers a wide range of legacy part numbers.

Fits X240 X250 T440 T450 T460 T470P series.

The battery suits owners of ThinkPad X240, X250, T440, T440s, T450, T450s, T460, T460P, T470P, T550, T560, P50S, X260, X270, W550, W550s, L450, L460, L470, S440, S540 and K2450 models. Buyers with a T460s, T470 or T470s should look elsewhere because the form factor is incompatible.

72Wh capacity supports typical mobile workloads

A 72Wh rating provides enough energy for several hours of office tasks, web browsing or video playback on the supported platforms. Runtime scales with screen brightness, CPU load and peripheral use, so intensive workloads will drain the pack more quickly. The 11.22V output matches the original specification for stable operation.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $37.99
Pricier than about 68% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name68+ --72 Wh
Part number45N1136 45N1738
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.22 V
Battery capacity72 Wh

Questions about this item

Which ThinkPad models must I already own for the 45N1136 battery to fit?

The 45N1136 fits ThinkPad X240, X250, X260, X270, T440, T440s, T450, T450s, T460, T460P, T470P, T550, T560, P50S, W550, W550s, L450, L460, L470, S440, S540 and K2450 series.

Will the 11.22V 72Wh battery work in a ThinkPad T460s that I plan to keep?

No, the supplier notes state the battery does not fit ThinkPad T460s, T470 or T470s models.

How can I confirm the 45N1738 battery is operating correctly after installation?

The system should recognise the 72Wh capacity at 11.22V, show normal charge and discharge cycles, and run without unexpected shutdowns.

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