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
Rectangular black lithium-ion laptop battery with connector strip

Beisite

Beisite L20C4P73 L20M4P73 L20D4P73 L20L4P73 laptop battery

SKU CH-CJXT-S7SAA

Replacement lithium-ion battery delivering 15.36V and 54.7Wh for Lenovo ThinkPad X13 Gen 2 models

  • Battery typeLithium-Ion
  • Battery voltage rating15.36 V
  • Battery capacity54.7 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor ThinkPad X13 Gen 2 20XH 20XJ Series
  • Delivers 54.7Wh capacity for extended runtime
  • 36V lithium-ion chemistry matches original spec
  • Replaces multiple Lenovo part numbers including SB10W51919
  • Fits ThinkPad X13 Gen 2 20XH and 20XJ series
  • Brand-new condition ensures full rated performance

Compatible replacement for ThinkPad X13 Gen 2

This new lithium-ion battery replaces part numbers L20C4P73, L20D4P73, L20L4P73 and L20M4P73 in Lenovo ThinkPad X13 Gen 2 models. It delivers 54.7Wh at 15.36V and comes in black. The supplier ships whichever compatible variant is in stock.

Voltage variation across part numbers

The four listed part numbers operate at different voltages yet are mutually compatible, so the unit you receive may differ from the one originally installed. This does not affect fit or function in the supported laptops.

Verify your exact model before ordering

Check that your ThinkPad X13 Gen 2 appears in the supported model list such as 20SX001UUS, 20T3S31Y00 or 20W8001YAU. This battery is not for other ThinkPad series or non-Lenovo laptops.

How it compares

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

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameL20C4P73 L20M4P73 L20D4P73 L20L4P73
Model nameL20C4P73 L20M4P73 L20D4P73 L20L4P73
Part number41CP6/62/65
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating15.36 V
Battery capacity54.7 Wh
Compatibility
Compatible withFor ThinkPad X13 Gen 2 20XH 20XJ Series

Questions about this item

How many charge cycles before the 54.7Wh lithium-ion battery needs replacing?

Lithium-ion cells typically retain usable capacity for several hundred full cycles; actual lifespan depends on depth of discharge and temperature.

What limits runtime first during a continuous workload on this 15.36V pack?

The 54.7Wh capacity sets the energy ceiling, so sustained high draw depletes the pack before voltage sag becomes the bottleneck.

Does the battery get hot or noisy when the ThinkPad X13 Gen 2 runs all day?

The pack is passive with no fan; it warms under load but stays within normal lithium-ion operating temperatures.

More in Laptop Chargers & Batteries

Similar items