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Rectangular black lithium-ion laptop battery with three cells

DELL

DELL 43Wh 11.1V 3-Cell Lithium-Ion Battery R77WV TRHFF P39F-002 P39F001 P49G P49G-001 P49G002

SKU CH-8BFJ-WDAN0

43Wh 11.1V lithium-ion 3-cell battery replaces Dell R77WV TRHFF P39F-002 P39F001 P49G P49G-001 P49G002 models

  • CompatibilityCompatible with Dell R77WV TRHFF P39F-002 P39F001 P49G P49G-
  • Battery TypeLithium-Ion
  • Reliable 11.1 V power delivery for compatible Dell models
  • Extended runtime from 43 Wh lithium-ion capacity
  • Durable 3-cell design built for long-term use
  • 100 % fit guarantee across listed Dell part numbers
  • CE and RoHS certified for safety and environmental compliance

Compatible Dell Laptop Battery

This 43Wh lithium-ion battery replaces Dell part numbers R77WV TRHFF P39F-002 P39F001 P49G P49G-001 P49G002. It is built for owners of those specific Dell notebooks who need a new power source. The three-cell pack fits the original bay without modification. Buyers with different Dell models or other brands cannot use this unit.

Voltage and Capacity Match

The decisive specification is the 11.1V 43Wh rating combined with the listed part-number compatibility. Only laptops that shipped with those exact Dell part numbers will recognise the pack and charge it correctly. A different voltage or watt-hour value will cause charging errors or reduced run time.

Thermals and Power Draw

Lithium-ion chemistry runs cool during typical office or media workloads and the pack has no moving parts so it adds no audible noise. Normal discharge follows the 11.1V 43Wh rating and the battery management board regulates current to stay within safe limits. The cell construction is certified to CE and RoHS standards for safe everyday operation.

Highlights

  • Reliable 11.1 V power delivery for compatible Dell models
  • Extended runtime from 43 Wh lithium-ion capacity
  • Durable 3-cell design built for long-term use
  • 100 % fit guarantee across listed Dell part numbers
  • CE and RoHS certified for safety and environmental compliance

Specifications

CompatibilityCompatible with Dell R77WV TRHFF P39F-002 P39F001 P49G P49G-001 P49G002
Battery TypeLithium-Ion

Questions about this item

How long will the 43 Wh rating actually run my Dell laptop?

The 43 Wh capacity measures total energy stored; real-world runtime depends on your model's power draw, screen brightness and workload, but it matches the original factory specification for the listed Dell part numbers.

Does the 11.1 V output work with every Dell laptop that uses these part numbers?

Yes, the 11.1 V rating is the exact voltage required by the Dell models referenced by R77WV, TRHFF, P39F-002, P39F001, P49G, P49G-001 and P49G002, so it will not over- or under-volt the system.

Will the 3-cell pack fit the battery bay without modification?

The pack is built to the original 3-cell form factor for the compatible Dell notebooks, so it slides into the existing bay and secures with the factory latches — no adapters or trimming needed.

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