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Black rectangular laptop battery with label showing 48Wh 11.1V

PISKEKAT

PISKEKAT 8858X T54FJ 48Wh 11.1V laptop battery

SKU CH-2NQ4-FHT27

A 48 Wh lithium-ion replacement battery compatible with Dell Inspiron 14, 15 and 17 series laptops

  • Battery TypeLaptop Batteries
  • 48 Wh capacity powers compatible Dell laptops through a full workday
  • Li-ion chemistry delivers up to 500 recharge cycles over the battery life
  • 1 V output matches original specifications for Latitude E5420 E5430 E5520 E5530 E6420 E6430 E6440 E6520 E6530 E6540
  • Replaces Dell part numbers 8858X T54FJ 04NW9 2P2MJ 312-1163 312-1164 312-1242 312-1323 312-1324 312-1325 4YRJH 911MD CWVXW DHT0W HCJWT
  • Fits Inspiron 14R 15R 17R Precision M2800 Vostro 3460 3560 models 4420 4520 4720 5420 5425 5520 5525 5720 7420 7520 7720

48Wh Li-ion replacement for Dell 14, 15.

This 48Wh lithium-ion battery operates at 11.1V and is built new from the manufacturer. It replaces original Dell packs across Inspiron 14R, 15R and 17R lines, Latitude E5420, E5430, E5520, E6420, E6430, E6440, E6520, E6530, E6540, Precision M2800 and Vostro 3460, 3560 models. Rated for up to 500 recharge cycles over its service life.

Black casing with standard Dell connector layout

The black housing matches the original form factor and aligns with the factory connector positions on the listed Dell chassis. No adapter cables or mounting modifications are required; the pack seats directly into the existing battery bay and locks with the original latches. CE and UL safety certifications confirm compliance with electrical and environmental standards.

Restores runtime on ageing 48Wh Dell packs

This unit replaces depleted or failing 48Wh batteries in the compatible Dell series, returning the notebook to its original unplugged endurance. The upgrade is worthwhile when the existing pack no longer holds sufficient charge for mobile work or when cycle count approaches the rated limit. It does not increase capacity beyond the factory 48Wh specification.

Highlights

  • 48 Wh capacity powers compatible Dell laptops through a full workday
  • Li-ion chemistry delivers up to 500 recharge cycles over the battery life
  • 1 V output matches original specifications for Latitude E5420 E5430 E5520 E5530 E6420 E6430 E6440 E6520 E6530 E6540
  • Replaces Dell part numbers 8858X T54FJ 04NW9 2P2MJ 312-1163 312-1164 312-1242 312-1323 312-1324 312-1325 4YRJH 911MD CWVXW DHT0W HCJWT
  • Fits Inspiron 14R 15R 17R Precision M2800 Vostro 3460 3560 models 4420 4520 4720 5420 5425 5520 5525 5720 7420 7520 7720

Specifications

Battery TypeLaptop Batteries

Questions about this item

What voltage and capacity does the 11.1V 48Wh battery deliver in practice?

The lithium-ion pack supplies 11.1 volts and 48 watt-hours, matching the original Dell specifications for the listed Latitude, Inspiron, Precision and Vostro models.

Which Dell chassis sizes does the 8858X T54FJ pack fit?

It replaces batteries in 14-inch, 15-inch and 17-inch Dell laptops including Latitude E5420, E5520, E6420, E6520, Inspiron 14R, 15R, 17R, Precision M2800 and Vostro 3460, 3560 series.

How is the battery installed and what step do people often miss?

Power off the laptop, unplug the AC adapter, slide the release latch, remove the old pack, insert the new one until it clicks, then charge fully before first use to calibrate the fuel gauge.

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