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Rectangular black Dell laptop battery, three cells, 42 Wh 11.4 V 3600 mAh

DELL

DELL WJPC4 42 Wh 11.4 V 3600 mAh laptop battery

SKU CH-ZKS4-DGBNX

A 42 Wh, 11.4 V lithium-ion internal battery with 3600 mAh capacity for compatible Dell laptops

  • Battery typeLithium-Ion
  • 42 Wh capacity powers the laptop through long sessions
  • 3600 mAh rating delivers consistent current for demanding tasks
  • 4 V output matches original specifications exactly
  • Li-ion chemistry provides reliable recharge cycles
  • Internal 3-cell design fits the original battery bay

Dell WJPC4 42 Wh replacement battery

This Dell WJPC4 battery supplies 42 Wh at 11.4 V using a 3-cell lithium-ion design. It fits compatible Dell laptops that require an internal pack with the 0WJPC4 part number. The unit arrives new and ready for installation.

Upgrading from a depleted or lower-capacity pack

Replace the original battery when runtime has dropped noticeably or the system reports a permanent capacity loss. The jump is worth it if the existing pack no longer holds enough charge for a typical work session away from mains power.

Check the part number and voltage before ordering

Verify that the service tag or current battery label lists 0WJPC4 and confirms an 11.4 V rating. Ensure the laptop uses a 3-cell internal form factor so the replacement aligns with the existing connector and mounting points.

How it compares

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

Price $54.99
Pricier than about 85% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

Does the 42 Wh 11.4 V battery fit the Dell WJPC4 bay without extra brackets?

It is an internal 3-cell Li-ion pack built to the Dell WJPC4 form factor, so it slides straight into the designated battery bay with no additional brackets.

What is the common mistake when installing this 3600 mAh pack?

Forgetting to disconnect the old battery connector before removing the bottom cover can leave the motherboard powered and risk a short.

When should the 42 Wh Li-ion cell be replaced?

Replace it once run-time falls well short of the original 42 Wh rating or the pack no longer holds a full 3600 mAh charge.

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