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Black rectangular laptop battery with connector strip

Dell RJ40G 63Wh 15.2V Laptop Battery for Latitude 5420 5520 Precision 3560

SKU CH-W6AP-S3GQM

A 63 Wh lithium-polymer replacement battery rated at 15.2 V for Dell Latitude 5420, 5520 and Precision 3560 laptops

  • Battery type96 W
  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Product colorBlack
  • Product typeCharger
  • Compatible with35J09, RJ40G 01K2CF 075 × 16 WY9DX 0WK3F1 0M3KCN 005R42 Dell
  • 63 Wh capacity powers Latitude 5420 5520 and Precision 3560
  • 2 V lithium-polymer cell matches original voltage spec
  • Built-in protection guards against overcharge over-discharge and short circuits
  • Rated for 500 recharge cycles over the battery life
  • Replaces part numbers RJ40G 01K2CF 075X16 WY9DX and more

Dell RJ40G 63Wh Battery for Latitude and Precision

This 15.2V lithium-polymer pack replaces the original battery in Dell Latitude 5420, Latitude 5520 and Precision 3560 laptops. It delivers 63 watt-hours of capacity and is rated for up to 500 recharge cycles.

Practical Limits of the 15.2V Lithium-Polymer Design

The cell chemistry provides overcurrent, overcharge, overdischarge and temperature protection circuits. Capacity will gradually decline after repeated cycles and the pack must be charged from a compatible 20V AC adapter.

Replaces Worn-Out OEM Packs in Supported Models

It swaps directly for part numbers RJ40G, 01K2CF, 075X16, WY9DX, 0WK3F1, 0M3KCN and 005R42. The upgrade is worthwhile when the original battery no longer holds sufficient charge for mobile work. Not for users needing higher capacity than 63Wh or a different voltage.

How it compares

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

Price $88.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameRJ40G
Part numberRJ40G
Product colorBlack
Product typeCharger
Power
Battery type96 W
Battery voltage rating20 V
Power adapter voltage20 V
Size & build
Product weight0.66 lb (0.3 kg)
Compatibility
Compatible with35J09, RJ40G 01K2CF 075 × 16 WY9DX 0WK3F1 0M3KCN 005R42 Dell Latitude 14 5420 CHKFM FDTCY XPC5H series; Dell Latitude 15 5520 39V1H FPKNM series; Dell Precision 15 3560 3H45Y 4MTF7 758J7 7RV10 F3T9T series

Questions about this item

Should I pick the 63Wh or 99.5Wh version for my Latitude 5420?

This listing is for the 63Wh model only; the 99.5Wh figure appears in the feature list but no separate capacity option is offered for this part number.

What does the 63Wh rating mean for daily runtime on a Precision 3560?

A 63Wh pack at 15.2V typically supplies several hours of mixed office work; exact duration varies with CPU load, display brightness and background apps on the 3560.

Does the 20V AC adapter voltage limit charging speed on the Latitude 5520?

The 20V adapter matches the system's charging circuit, so the battery charges at the rate the laptop firmware allows; no extra speed is possible from this supply.

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