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Black rectangular laptop battery with label showing RJ40G 15.2V 63Wh

PISKEKAT

PISKEKAT RJ40G laptop battery 15.2V 63Wh for Dell Latitude 5420 5520 Precision 3560

SKU CH-48QW-702Z5

15.2 V 63 Wh replacement battery fits Dell Latitude 5420, 5520 and Precision 3560 models

  • Battery TypeLaptop Batteries
  • 2 V 63 Wh capacity matches original runtime
  • Four-cell lithium-ion pack built with grade-A cells
  • Certified to CE FCC RoHS and UL safety standards
  • Fits Latitude 5420 5520 and Precision 3560 series
  • Replaces part numbers P137G P104F 075X16 01K2CF 0WK3F1 005R42

PISKEKAT RJ40G 63Wh replacement battery

This PISKEKAT RJ40G battery replaces the original Dell pack for Latitude 14 5420, Latitude 15 5520 and Precision 15 3560 series laptops. It delivers 15.2V from a 4-cell, 63Wh lithium-ion assembly built with grade A cells. The unit matches the original form factor and carries CE, FCC, RoHS and UL safety certifications. It is intended for owners of those specific Dell models who need a direct swap.

Sustained runtime and cell stability

Under continuous load the four grade A cells maintain a steady discharge curve without the voltage sag seen in lower-grade packs. The 63Wh capacity is rated to deliver the same usable runtime as the factory battery when new. Safety circuitry monitors temperature and current throughout the cycle, preventing thermal throttle events that can cut a work session short. No degradation claims beyond the original specification are made.

Straightforward internal swap

Installation requires opening the laptop chassis, disconnecting the old pack and connecting the RJ40G in its place using the existing cable. The black housing aligns with the original screw posts, so no adapter brackets are needed. Common issues arise when the BIOS does not recognise the new pack immediately; a full charge cycle and BIOS update usually resolve it. Buyers who cannot open their laptop or lack a compatible charger should seek professional fitting.

Highlights

  • 2 V 63 Wh capacity matches original runtime
  • Four-cell lithium-ion pack built with grade-A cells
  • Certified to CE FCC RoHS and UL safety standards
  • Fits Latitude 5420 5520 and Precision 3560 series
  • Replaces part numbers P137G P104F 075X16 01K2CF 0WK3F1 005R42

Specifications

Battery TypeLaptop Batteries

Questions about this item

Does the 15.2 V 63 Wh RJ40G run hotter than the original battery during all-day use?

The replacement uses grade-A cells and matches the original 15.2 V 63 Wh specification, so thermal behaviour stays equivalent to the factory pack.

Must I already own a Dell Latitude 5420, 5520 or Precision 3560 for this RJ40G to fit?

Yes — the battery is built for Latitude 14 5420, Latitude 15 5520 and Precision 15 3560 chassis and matches part numbers P137G, P104F, 075X16, 01K2CF, WY9DX, 0WK3F1, 0M3KCN and 005R42.

Will the RJ40G work alongside the original Dell AC adapter that shipped with my Latitude 5420?

The pack charges at the same 15.2 V the system expects, so the factory Dell adapter continues to charge it normally.

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