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-polymer battery pack measuring 8.0 by 1.5 by 0.8 centimetres

Dr. Battery

Dr. Battery 11.1V 3500mAh laptop battery for Dell XPS 14 L421X

SKU CH-J2BH-1CGVF

Li-polymer replacement battery for Dell XPS 14 L421X ultrabooks, 11.1V 3500mAh capacity with integrated over-charge, over-discharge, overheating and short-circuit protection

  • TypeBattery
  • CompatibilityDell 421x-1046 / Dell XPS 14 (L421X) / Dell XPS 14 L421X Ult
  • Battery TypeLi-polymer
  • Battery Voltage11.1V
  • Battery Capacity3500 mAh
  • FunctionNotebook
  • 1 V 3500 mAh Li-polymer cell delivers extended runtime
  • OEM-grade cells provide stable performance and longer battery life
  • Built-in protection guards against over-charge, over-discharge, overheating and short-circuit
  • Compatible with Dell XPS 14 L421X Ultrabook series
  • Replaces original Dell part numbers 04RXFK, 4RXFK, C1JKH, FFK56

Replacement battery for Dell XPS 14 L421X

This Dr. Battery Professional Series unit is a direct replacement for the Dell XPS 14 L421X Ultrabook series. It is built with OEM-grade Li-polymer cells and integrated safety circuitry for stable daily operation. The 11.1V 3500 mAh pack restores mobile runtime for compatible laptops.

Physical fit and electrical match required

The pack measures 8.0 x 1.5 x 0.8 cm and weighs 0.4 kg, so the battery bay must accommodate those exact dimensions. Voltage is fixed at 11.1V; a different voltage will not work and could damage the notebook. Confirm the original part number before installation.

Capacity decides runtime per charge

The 3500 mAh rating sets the total energy available between charges for this specific model. Buyers needing longer unplugged time per session cannot obtain more from this part. No higher-capacity alternative is described in the data.

Highlights

  • 1 V 3500 mAh Li-polymer cell delivers extended runtime
  • OEM-grade cells provide stable performance and longer battery life
  • Built-in protection guards against over-charge, over-discharge, overheating and short-circuit
  • Compatible with Dell XPS 14 L421X Ultrabook series
  • Replaces original Dell part numbers 04RXFK, 4RXFK, C1JKH, FFK56

Specifications

BrandASUS
ModelDell XPS 14 L421X Series
Part NumberDR-PRO-LDE321-A
TypeBattery
CompatibilityDell 421x-1046 / Dell XPS 14 (L421X) / Dell XPS 14 L421X Ultrabook / Dell XPS 14 LX421
Battery TypeLi-polymer
Battery Voltage11.1V
Battery Capacity3500 mAh
FunctionNotebook
Dimension8.0x1.5x0.8
Weight0.4

Questions about this item

Is this the right capacity for my Dell XPS 14 L421X?

Yes — the pack is rated at 3500 mAh and 11.1 V, matching the original specification for the XPS 14 L421X series.

How long will the 3500 mAh pack run my laptop?

The 3500 mAh capacity at 11.1 V delivers the same energy as the factory battery, giving comparable runtime for typical office and web tasks.

What connector does this battery use and will it fit my XPS 14?

It uses the Dell original connector for part numbers 04RXFK, 4RXFK, C1JKH and FFK56, ensuring a direct fit in the XPS 14 L421X ultrabook.

Also in this aisle

People compared these

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