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Black rectangular 6-cell lithium-ion laptop battery

Dr. Battery

Dr. Battery MPL10244P-21 6-cell 4400 mAh 11.1 V laptop battery for ThinkPad X121e X130e X131e X140e

SKU CH-2F6S-B0ZX0

Replacement 6-cell lithium-ion battery delivering 4400 mAh at 11.1 V for ThinkPad X121e, X130e, X131e and X140e models

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity4,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withLenovo ThinkPad X121e / X130e / X130e 2340 / X131e / X131e 3
  • 4400 mAh capacity powers ThinkPad X121e, X130e, X131e and X140e models
  • 6-cell lithium-ion design delivers 11.1 V output for reliable mobile performance
  • Smart control chip enables quicker charging and longer discharge time
  • Built-in protections guard against short circuit, overheat and overload conditions
  • New replacement battery matches OEM specifications for FRU 42T4961 and 0A36290

Replacement battery for ThinkPad X121e X130e X131e

This 6-cell lithium-ion pack replaces Lenovo FRU 42T4961 and compatible part numbers across the X121e X130e X131e and X140e lines. It delivers 11.1 V and 4400 mAh for 49 Wh of capacity. The unit is new and carries a one-year manufacturer warranty.

Sustained discharge with smart-chip regulation

A built-in control chip manages charge current to reduce heat buildup during long sessions. Protection circuits guard against short circuit overheat and overload so output stays stable under continuous load. The cell chemistry is rated for extended cycle life without rapid capacity fade.

Black 6-cell housing with OEM-fit connectors

The black casing matches the original form factor and locks into the battery bay without adapters. Contact layout mirrors the factory design so the laptop recognises the pack immediately. No extra cables or mounting hardware are required for installation.

How it compares

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

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL10244P-21
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating11.1 V
Battery capacity4,400 mAh
Compatibility
Compatible withLenovo ThinkPad X121e / X130e / X130e 2340 / X131e / X131e 3367-9AU / X131e 3368-4FU / X131e 3368-53U / X131e 3371-2PU / X131e 3371-87U / X131e 3372-29U / X131e 3372-3QU / X140e / X140e 20BL000BUS
Lenovo ThinkPad Edge E320 / E325 / E330 / E330 3354-BJG / E335
Original Battery Part Number :
0A36290 / 0A36292 / 42T4943 / 42T4945 / 42T4949 / 42T4951 / ASM 42T4958 / ASM 42T4960 / ASM 42T4962 / FRU 42T4947 / FRU 42T4957 / FRU 42T4959 / FRU 42T4961

Questions about this item

Does the 6-cell 4400 mAh pack run warm during a full workday?

The lithium-ion cells are rated at 11.1 V and 49 Wh; normal operation stays within typical laptop thermal limits.

Must my ThinkPad already have the original FRU 42T4961 or 0A36290 installed for this replacement to fit?

Yes — the battery matches FRU 42T4961, 0A36290, 0A36292, 42T4943, 42T4945, 42T4949 and 42T4951, so the laptop must use one of those part numbers.

Will the smart control chip work with the older X121e and X130e charging circuits?

The built-in chip provides quicker charging, short-circuit, overheat and overload protection on all listed models including X121e and X130e.

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