Dell MJ440 85Whr 11.1V 9Cell Li-Ion Battery

SKU MJ440

Brand Dell

9-cell Lithium-Ion (Li-Ion) battery technology
Capacity: 85 Watt-hours (Whr)
Voltage: 11.1 Volts (V)
Provides extended battery life for laptops
Designed as a replacement or upgrade for compatible Dell systems
Offers increased mobility and reduced reliance on AC power
Features safety mechanisms for reliable operation

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Key specifications

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Product Type: Laptop Battery
Battery Technology: Lithium-Ion (Li-Ion)
Number of Cells: 9-Cell
Capacity: 85 Whr
Voltage: 11.1 V
Brand: Dell

Product details

The Dell MJ440 is a high-capacity 9-cell Lithium-Ion (Li-Ion) battery designed to provide extended power for compatible Dell laptops. With a voltage of 11.1V and a capacity of 85Whr, it offers a significant runtime, reducing the need for frequent recharging.

Technical Information

Product Type	Laptop Battery
Battery Technology	Lithium-Ion (Li-Ion)
Number of Cells	9-Cell

Additional Specifications

Capacity	85 Whr
Voltage	11.1 V
Brand	Dell

Description

The Dell MJ440 is a premium 9-cell Lithium-Ion battery pack engineered to deliver superior power performance for select Dell laptop models. With a substantial capacity of 85 Watt-hours (Whr) and operating at a standard 11.1 Volts, this battery is designed to significantly extend the operational time of a laptop between charges. This makes it an ideal choice for mobile professionals, students, or anyone who requires prolonged use of their device away from a power outlet. The 9-cell configuration typically offers a higher energy density and longer lifespan compared to standard 4-cell or 6-cell batteries, providing a noticeable improvement in runtime. The Li-Ion technology ensures efficient power delivery and is generally lighter than older battery chemistries. Dell batteries are manufactured to meet stringent quality and safety standards, incorporating protection circuits to prevent overcharging, over-discharging, and short circuits, thereby ensuring the safety of both the battery and the laptop. This MJ440 battery serves as a direct replacement for the original equipment manufacturer (OEM) battery or as an upgrade option for users seeking enhanced portability and productivity. Its compatibility is specific to certain Dell laptop series, and users should verify their system's requirements before purchase. By providing extended power, the MJ440 enhances the mobility and usability of compatible Dell laptops, allowing users to work, study, or play for longer periods without interruption.

Condition: Refurbished