We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular 6-cell lithium-ion laptop battery with textured finish

Dr. Battery

Dr. Battery MPL10244P-09 6-cell 11.1V 4400mAh laptop battery

SKU CH-QS9E-DV660

Replacement 6-cell lithium-ion battery delivering 11.1 V and 4400 mAh for compatible Lenovo ThinkPad models

  • ColorBlack
  • TypeBattery
  • CompatibilityLenovo ThinkPad X121e / X130e / X130e 2340 / X131e / X131e 3
  • Battery Type6 Cell Lithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4400 mAh
  • Replaces multiple Lenovo ThinkPad models including X121e and X140e
  • 6-cell lithium-ion design delivers 4400 mAh capacity at 11.1 V
  • Smart control chip enables quicker charging and longer discharge time
  • Built-in protections guard against short circuit, overheat and overload
  • Backed by a 1-year warranty from a brand established in 2006

Compatible ThinkPad models

This replacement battery fits the Lenovo ThinkPad X121e, X130e, X131e and X140e series, including the X130e 2340 and X140e 20BL000BUS variants. It matches FRU part numbers 42T4943, 42T4945, 42T4949, 42T4951 and 42T4961. Buyers with other ThinkPad lines or non-Lenovo laptops cannot use this unit.

6-cell 11.1 V lithium-ion pack

The battery uses a six-cell lithium-ion chemistry rated at 11.1 volts. This voltage and cell count are the single specification that determines whether the pack will be recognised and charged correctly by the supported ThinkPad models. A different voltage or cell configuration will not work.

4400 mAh capacity with 49 Wh energy

The 4400 mAh rating provides 49 watt-hours of energy for typical office workloads and web browsing on the compatible X-series chassis. Runtime decreases under sustained heavy loads or when the pack ages beyond its design life. Users needing significantly longer unplugged time will find the capacity insufficient.

Highlights

  • Replaces multiple Lenovo ThinkPad models including X121e and X140e
  • 6-cell lithium-ion design delivers 4400 mAh capacity at 11.1 V
  • Smart control chip enables quicker charging and longer discharge time
  • Built-in protections guard against short circuit, overheat and overload
  • Backed by a 1-year warranty from a brand established in 2006

Specifications

BrandDr. Battery
ModelMPL10244P-09
ColorBlack
TypeBattery
CompatibilityLenovo 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
Battery Type6 Cell Lithium-Ion
Battery Voltage11.1V
Battery Capacity4400 mAh

Questions about this item

How long will the 4400 mAh capacity actually run a ThinkPad X131e?

The 49 Wh pack typically delivers several hours of mixed office work on an X131e, though exact runtime varies with screen brightness, CPU load and battery age.

Does the 11.1 V output match the original Lenovo FRU 42T4961 specification?

Yes, 11.1 V is the exact nominal voltage listed for FRU 42T4961 and the other compatible part numbers.

Will the 6-cell black casing fit the battery bay on an X140e 20BL000BUS without modification?

The pack is moulded to the same footprint as the original 6-cell Lenovo batteries, so it seats and locks in the X140e bay directly.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.