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Black rectangular lithium-ion laptop battery with connector on one end

KingSener

KingSener 01AV436 laptop battery 3685mAh 42WH 11.4V for ThinkPad 13 S2

SKU CH-SYSV-4575X MPN 01AV436

Replacement lithium-ion battery delivering 3685 mAh at 11.4 V for ThinkPad 13 and S2 series laptops

  • Battery typeLithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity3,685 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible with3,685 mAh/42WH
  • Replaces multiple original part numbers for easy sourcing
  • 42 Wh capacity supports extended work sessions
  • 4 V lithium-ion chemistry matches system requirements
  • Compatible with ThinkPad 13 and S2 series laptops
  • Brand-new replacement cell manufactured to original specifications

Compatible ThinkPad models

This replacement battery fits ThinkPad 13 first and second generation laptops, the ThinkPad 13 Chromebook series, and ThinkPad S2 first and second generation units. It replaces Lenovo part numbers 01AV400, 01AV401, 01AV402, 01AV435, 01AV436 and 01AV437.

Buyers with other laptops

Owners of ThinkPad models outside the listed 13 and S2 series cannot use this battery. Systems that require a different voltage, capacity or physical layout will need a different part.

11.4 V lithium-ion specification

The pack delivers 11.4 V with a rated capacity of 3685 mAh and 42 Wh using lithium-ion cells. Matching this voltage and capacity is the single factor that decides whether the battery will operate correctly in the target notebook.

How it compares

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

Price $29.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameKingsener
Model name01AV436
Part number01AV436
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.4 V
Battery capacity3,685 mAh
Compatibility
Compatible with3,685 mAh/42WH

Questions about this item

What is the usable capacity of the 01AV436 battery before it needs recharging?

The 01AV436 battery provides 3685mAh at 11.4V, giving 42Wh of energy for the ThinkPad 13 and S2 series.

Does the 01AV436 battery run hot or draw extra power during continuous use?

The lithium‑ion 01AV436 operates at its rated 11.4V and 3685mAh without additional heat or power draw beyond normal charging cycles.

Which original Lenovo part numbers does the 01AV436 replace so I know it fits my laptop?

The 01AV436 replaces Lenovo part numbers 01AV400, 01AV401, 01AV402, 01AV435, 01AV437 and their SB10 equivalents for ThinkPad 13 and S2 models.

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