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Black rectangular lithium-ion laptop battery with label showing 11.1V 3.9Ah 44WH

KingSener

KingSener T430S laptop battery 11.1V 3.9Ah 44WH

SKU CH-C02M-SSKMF MPN T430S

A 11.1 V, 3.9 Ah lithium-ion replacement battery for Lenovo ThinkPad T430S, T420S, T420si and T430si models, matching original part numbers 45N1039, 45N1038, 45N1036, 42T4846, 42T4847 and 45N1143

  • Battery voltage rating11.1 V
  • Battery capacity3.9Ah / 44WH
  • Replaces original Lenovo batteries with exact 11.1V 44WH specification
  • Delivers 3.9Ah capacity for extended runtime on ThinkPad T430S series
  • Brand-new Li-ion cells provide stable power without false capacity claims
  • Matches original dimensions for tool-free installation in compatible models
  • Supports multiple part numbers including 45N1039 42T4846 42T4847

Compatible Lenovo ThinkPad models

This replacement battery fits Lenovo ThinkPad T430S, T420S, T420si and T430si laptops. It matches original part numbers including 45N1039, 45N1038, 45N1036, 42T4846 and 42T4847. The physical dimensions are identical to the factory unit for direct installation.

Users needing a direct replacement

Suitable for owners of the listed ThinkPad models who want a new Li-ion pack with 11.1V voltage and 44WH capacity. Not intended for other laptop series or for systems requiring a different voltage or connector layout.

Capacity and voltage

The pack delivers 3.9Ah at 11.1V for a 44WH energy rating. This figure determines whether the battery matches the original specification for your specific ThinkPad model.

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 nameT430S
Part number45N1039
45N1037
45N1036
45N1038
45N1143
42T4846
42T4847
0A36309
Power
Battery voltage rating11.1 V
Battery capacity3.9Ah / 44WH

Questions about this item

Will the T430S battery fit my ThinkPad T430S without modification?

The KingSener T430S matches the original size and uses part numbers 45N1039, 45N1037, 45N1036, 45N1038, 45N1143, 42T4846, 42T4847 and 0A36309 for direct fit.

How do I install the 11.1V 3.9Ah battery correctly on first use?

Fully charge and discharge the Li-ion pack from low current two or three times to calibrate the cells before regular use.

What care does the 44WH replacement battery need over time?

Store above 80% charge, recharge at least once a month if removed, and avoid hot, humid environments or leaving the adapter connected continuously.

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