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Rectangular 4-cell lithium-ion laptop battery with silver-grey finish and label showing 63Wh 15.2V

DELL

DELL 63Wh 4-Cell 15.2V Laptop Battery RJ40G 01K2CF 075X16 WY9DX 0WK3F1 0M3KCN 005R42

SKU CH-E97Q-WC3GZ

A 63 Wh, 4-cell lithium-ion battery at 15.2 V for compatible Dell laptops

  • Battery typeLithium-Ion
  • Compatible withCompatible with Dell RJ40G 01K2CF 075 × 16 WY9DX 0WK3F1 0M3K
  • 63Wh capacity extends work sessions without interruption
  • 4-cell lithium-ion design delivers reliable daily power
  • 2V voltage matches original Dell specifications exactly
  • CE and RoHS certified for safety and environmental standards
  • One-year replacement warranty protects against material defects

Compatible Dell Battery Replacement

This new lithium-ion battery replaces Dell part numbers RJ40G 01K2CF 075X16 WY9DX 0WK3F1 0M3KCN 005R42. It delivers a 63 Wh capacity across four premium cells at 15.2 V. The unit carries CE and RoHS certifications and includes a one-year replacement warranty. Buyers who need a different voltage or cell count should verify their original battery before ordering.

Installation And System Fit

The pack slots directly into the battery bay of supported Dell notebooks with no adapters or cable changes required. Its 4-cell layout keeps the profile slim so it does not add bulk or block adjacent ports. Once fitted the laptop recognises the pack immediately and resumes normal charge reporting. Systems that use a 6-cell or 9-cell design will not accept this smaller form factor.

Upgrade From Worn Original Pack

Swapping a degraded factory battery restores full runtime and eliminates sudden shutdowns caused by aged cells. The 63 Wh rating matches the original specification so daily workloads regain their previous endurance. If the existing pack still holds a useful charge the improvement will be modest; the jump is worthwhile when battery life has dropped below half of its new rating.

How it compares

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

Price $34.99
Pricier than about 62% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion
Compatibility
Compatible withCompatible with Dell RJ40G 01K2CF 075 × 16 WY9DX 0WK3F1 0M3KCN 005R42

Questions about this item

How long will the 63Wh capacity last under continuous load before needing a recharge?

Runtime depends on the laptop's power draw; a 63Wh pack typically delivers several hours of mixed use but exact duration varies by model and workload.

Does the 4-cell lithium-ion design run hot or make noise during all-day operation?

Lithium-ion cells produce no audible noise; heat output is low under normal use and the pack meets CE and RoHS safety standards.

Which Dell laptop models accept the RJ40G 01K2CF 075X16 WY9DX 0WK3F1 0M3KCN 005R42 part number?

This battery fits Dell notebooks that originally shipped with the listed part numbers; verify your original battery matches the photos before ordering.

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