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Dell 4M778 66Whr 14.8V Li-Ion Battery for Inspiron 2500 / Vostro 3700

SKU 4M778
Brand Dell
  • 66 Watt-hour Capacity
  • 14.8 Volt Nominal Voltage
  • Lithium-Ion (Li-Ion) Technology
  • Designed for Dell Inspiron 2500
  • Designed for Dell Vostro 3700
  • Higher Capacity Replacement Battery
  • Extended Portable Power
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Key specifications

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Product Type
Laptop Battery
Brand
Dell
Part Number
4M778
Capacity
66 Whr
Voltage
14.8 V
Battery Technology
Lithium-Ion (Li-Ion)

Product details

This is a Dell 66Whr, 14.8V Li-Ion battery designed for specific Inspiron and Vostro laptop models. It offers a higher capacity than the 5E528, providing longer battery life for compatible Dell systems. It serves as a replacement or upgrade option.

Technical Information

Product TypeLaptop Battery
BrandDell
Part Number4M778
Capacity66 Whr

Additional Specifications

Voltage14.8 V
Battery TechnologyLithium-Ion (Li-Ion)
Compatible ModelsDell Inspiron 2500, Dell Vostro 3700

Description

The Dell 4M778 is a high-capacity Lithium-Ion (Li-Ion) laptop battery, rated at 66 Watt-hours (Whr) and operating at a nominal voltage of 14.8 Volts. This battery is engineered as a compatible power source for specific Dell laptop models, including the Inspiron 2500 series and the Vostro 3700 series. Compared to standard capacity batteries, the 66Whr rating indicates a larger energy reserve, translating to longer operational time on a single charge. As a Li-Ion battery, the 4M778 benefits from the technology's inherent advantages, such as good energy density, lighter weight, and improved cycle life over older battery chemistries. The 14.8V output is standard for many multi-cell laptop battery packs, ensuring sufficient power delivery to the laptop's internal components. This battery serves as an excellent option for users who frequently work away from power outlets or require extended battery performance for demanding tasks. This battery is intended as a direct replacement for a depleted or failing original battery, or as an upgrade for users seeking to maximize their laptop's mobility. It is crucial for users to verify that the 4M778 part number is indeed compatible with their specific Dell Inspiron 2500 or Vostro 3700 model to ensure proper fit, function, and safety. The increased capacity offers a tangible benefit for users prioritizing extended battery life.

Condition: Refurbished

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Typically 12 days handling, 37 days in transit.

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