Batteries are arguably the most critical part of a device considering the fact that they keep the device up and running. Power back-up is one of the key factors that defines your mobility and safety of the stored data. It is often dangerous to use any battery with your laptop as it may not complement its statutory technical requirements. This may affect the performance of the laptop and can even damage its hardware. 

Here is the list of best batteries for your Dell Latitude E7440 Laptop. Do check it out-

1. WISTAR Laptop Battery

Specifications-

Voltage-7.4V. 4500mAh 4-Cell. 

Type-Li-ion.

Number of Batteries - 4 Lithium Ion batteries

Brand-WISTAR

Battery Cell Composition-Lithium Ion

Voltage-7.4 Volts

Reusability-Rechargeable

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2. SellZone Replacement Compatible Laptop Battery for DELL Latitude E7440

Number of Batteries-1 Lithium Ion batteries required. (included)

Brand-SellZone

Battery Cell Composition-Lithium Ion

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