DELL 42Wh DJ1J0 laptop battery for Latitude 12 7000 7280 7290 13 7380 7390

Battery for Dell Latitude 12 and 13

This 42Wh lithium-ion replacement battery fits Dell Latitude 12 7000 series models 7280 and 7290, plus Latitude 13 7000 series models 7380 and 7390. It is built for owners of those specific ultraportables who need a fresh power source because the original pack no longer holds enough charge. The three-cell design operates at 11.4V and carries CE and RoHS certification for safety compliance.

Capacity and voltage limits

The pack delivers 42Wh at 11.4V using premium three-cell lithium-ion chemistry, so runtime is fixed by that energy rating and cannot be expanded without a physically larger battery. It connects through the proprietary Dell Latitude interface used on the listed 12-inch and 13-inch chassis, meaning it will not work in other Dell families or in models that require a different connector or voltage. Buyers who need longer unplugged time than 42Wh provides should look for a higher-capacity pack designed for the same chassis.

Replaces worn original batteries

This unit directly substitutes the factory-installed battery in the compatible Latitude 12 7000 and 13 7000 systems, restoring the original runtime when the old cell has degraded. The jump is worth it when the current battery drains quickly, fails to charge fully, or triggers a replacement warning in the BIOS. It is not for users whose laptops use a different battery form factor or who require a higher-watt-hour option for extended field work.