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Rectangular black lithium-ion laptop battery with label showing 7.4V 51Wh 4-cell

DELL

DELL 7.4V 51Wh 4-Cell Laptop Battery K3JK9 K9GVN P37F P48F P48G PF59Y

SKU CH-D2D7-KEA9V

A 7.4 V lithium-ion replacement battery delivers 51 Wh across four cells for compatible Dell laptops

  • Battery typeLithium-Ion
  • Compatible withCompatible with Dell K3JK9 K9GVN P37F P37F001 P48F P48F001 P
  • Delivers 51Wh capacity for extended runtime
  • Lithium-Ion chemistry provides reliable rechargeable power
  • 4V output matches original Dell specifications
  • Four premium cells ensure consistent discharge performance
  • CE and RoHS certified for safety compliance

Perfect Fit for Specific Dell Laptops

This 7.4V lithium-ion battery delivers 51Wh capacity across four premium cells. It is built as a direct replacement for Dell part numbers K3JK9, K9GVN, P37F, P48F, P48G and PF59Y. Buyers whose original battery carries a different part number will find this unit incompatible.

Critical Compatibility Check Required

The single specification that decides fit is the exact Dell part number printed on your original battery. Two distinct batteries exist for the same laptop model and they are not interchangeable. You must visually compare your old battery with the product photos before ordering to confirm a match.

Cool Efficient Operation

Lithium-ion chemistry keeps heat output low during normal charging and discharging cycles. The pack operates silently with no moving parts and draws only the power the laptop requests. CE and RoHS certification confirms compliance with safety and environmental standards for everyday use.

How it compares

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

Price $31.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Power
Battery typeLithium-Ion
Compatibility
Compatible withCompatible with Dell K3JK9 K9GVN P37F P37F001 P48F P48F001 P48G P48G001 PF59Y

Questions about this item

How long will the 51Wh capacity actually run my laptop?

The 51Wh rating means the battery can supply 51 watts for one hour; real-world runtime depends on your laptop's power draw, screen brightness and workload, so expect less under heavy use.

What does the 7.4V rating mean for compatibility?

The 7.4V output must match your original battery's voltage exactly; using a different voltage can prevent charging or damage the laptop, so verify your old battery shows 7.4V before ordering.

Will the 4-cell pack fit my Dell chassis without modification?

The pack is built to the original Dell form factor for the listed part numbers; the supplier notes two incompatible variants exist for some models, so compare the physical shape and connector against the product photos before fitting.

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