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Rectangular black laptop battery with label showing part numbers and voltage

PowerWarehouse

PowerWarehouse 5B10W51868 laptop battery for ThinkPad L13 Gen 5, P16s Gen 1

SKU CH-JV28-244TH

Replacement 4-cell lithium-ion battery rated at 15.44 V and 3400 mAh for ThinkPad L13, P16s and T16 models

  • CompatibilityTHINKPAD L13 GEN 5, L13 GEN 5 21LC, P16S GEN 1, P16S GEN 1 2
  • Battery Type4 Cell Lithium-Ion
  • Replaces original battery across multiple ThinkPad models
  • 4-cell lithium-ion chemistry delivers reliable mobile power
  • 44 V output matches factory voltage specification
  • 3400 mAh capacity supports extended work sessions
  • Supplied new from a US-based specialist supplier

Direct replacement for ThinkPad L13 Gen 5

This new PowerWarehouse battery matches OEM part numbers 5B10W51868, 5B11M90034 and L21L4P72. It fits L13 Gen 5 21LC, P16s Gen 1 21CK and 21CL, plus T16 Gen 1 and Gen 2 models. The four-cell lithium-ion pack restores mobile power without modification.

15.44 V, 3400 mAh lithium-ion cell chemistry

The 15.44 volt, 3400 milliampere-hour rating delivers the same voltage and capacity as the original pack. Normal operation produces no additional heat or audible noise beyond the laptop's own thermal design. Power draw follows the system's standard charging profile.

Internal fit frees all external ports

The battery installs inside the chassis, leaving every USB, video and network connection available. No extra cables, adapters or carriage space are required. Buyers needing a higher-capacity pack or a different voltage will not be served by this unit.

Highlights

  • Replaces original battery across multiple ThinkPad models
  • 4-cell lithium-ion chemistry delivers reliable mobile power
  • 44 V output matches factory voltage specification
  • 3400 mAh capacity supports extended work sessions
  • Supplied new from a US-based specialist supplier

Specifications

Part Number5B10W51868, 5B11M90034, L21L4P72, SB11M89835, 5B10W51869, 5B11M90035, L21M4P73
CompatibilityTHINKPAD L13 GEN 5, L13 GEN 5 21LC, P16S GEN 1, P16S GEN 1 21CK, P16S GEN 1 21CL, P16S GEN 2, P16S GEN 2 21HK, P16S GEN 2 21HL, P16S GEN 2 21K9, P16S GEN 2 21KA, T16 GEN 1, T16 GEN 1 21CH, T16 GEN 1 21CJ, T16 GEN 2, T16 GEN 2 21HH, T16 GEN 2 21HJ, T16 GEN 2 21K7, T16 GEN 2 21K8
Battery Type4 Cell Lithium-Ion

Questions about this item

How do I install the 5B10W51868 battery in my ThinkPad L13 Gen 5, and which step do people often get wrong?

Power off the laptop, remove the bottom case screws, disconnect the old battery connector before lifting it out, then connect the new 5B10W51868 battery before reassembling. People often forget to unplug the old battery first.

What maintenance or replacement will the 4-cell lithium-ion 3400mAh battery need later?

The 4-cell lithium-ion 3400mAh pack will gradually hold less charge over hundreds of cycles. Plan to replace it when runtime drops below your needs, typically after two to three years of daily use.

What limit appears first during sustained heavy loads on this 15.44V battery?

Under sustained heavy loads the 15.44V 3400mAh cells hit their thermal and current limits first, causing the laptop to throttle performance to protect the pack from overheating.

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