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Black rectangular Li-ion laptop battery with connector strip

KingSener

KingSener M4450 2800mAh 41WH laptop battery

SKU CH-NVP3-2K13X MPN M4450

Replacement lithium-ion battery rated 2800 mAh and 41 Wh at 14.8 V, compatible with multiple Lenovo part numbers

  • Battery voltage rating14.8 V/14.4 V( Compatible)
  • Battery capacity2,800 mAh/41WH
  • 2800mAh capacity delivers extended runtime for compatible Lenovo models
  • 41Wh energy rating supports longer sessions away from mains power
  • 8V / 14.4V dual-voltage design matches original battery specifications
  • Korean-made Li-ion cells provide stable output and reliable cycle life
  • Replacement unit fits E40-30, E40-45, E40-70, E40-80, E41-80, E50-80 and Tian Yi 300-14ISK / 15ISK without modification

Compatible replacement for Lenovo E

This KingSener M4450 lithium-ion battery replaces original part numbers including L13M4A01 and 45N1183 across Lenovo E40-30, E40-45, E40-80, E40-70, E41-80 and E50-80 models as well as Tian Yi 300-14ISK and 15ISK machines. It delivers 2800mAh at 41WH using Korean cells rated at 14.8V and 14.4V compatible voltage.

Voltage and capacity limits define runtime

The pack operates at a dual-rated 14.8V or 14.4V with a fixed 2800mAh capacity, so maximum energy available is 41WH regardless of load. Systems that draw higher peak current will see proportionally shorter runtimes and the battery cannot exceed its design capacity under any workload.

Direct fit with break-in procedure required

The unit matches the original physical dimensions for tool-free installation in the listed chassis. First use demands two to three full charge and discharge cycles at low current to calibrate the fuel gauge; skipping this step often leaves the reported capacity inaccurate and can trigger premature shutdown.

How it compares

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

Price $30.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameKingSener
Model nameM4450
Part numberL13L4A01 L13S4A01 L13M4A01
L12L4E55 L12S4E55 L12M4E55
45N1183 45N1184 4N1185 45N1186 45N1187
Power
Battery voltage rating14.8 V/14.4 V( Compatible)
Battery capacity2,800 mAh/41WH

Questions about this item

How do I know which KingSener M4450 part number matches my original battery?

Match the part number on your existing battery to the compatible list: L13L4A01, L13S4A01, L13M4A01, L12L4E55, L12S4E55, L12M4E55, 45N1183, 45N1184, 4N1185, 45N1186, or 45N1187.

What runtime does the 2800mAh 41WH rating deliver in a Lenovo E40 or E50 series laptop?

The 2800mAh 41WH capacity restores the original design runtime for supported Lenovo E40-30, E40-45, E40-80, E40-70, E41-80, E50-80 and Tian Yi 300-14ISK 15ISK models.

Does the 14.8V or 14.4V voltage affect compatibility with my Lenovo laptop?

The battery is rated 14.8V/14.4V compatible, so it works with systems specifying either voltage without any performance limit.

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