Dell Battery 3Cell 42Wh 11.4V

Dell HM1H5 is a replacement lithium-ion notebook battery, also identified as Dell part CPL-HM1H5. Its three-cell design and model-specific format make it a component for compatible notebooks rather than a general-purpose power bank.

It is rated at 42 Wh, with a listed capacity of 3500 mAh and an output of 11.4 V DC. These specifications describe its stored energy and electrical output for notebook use.

Dell lists compatibility with Latitude 3340, 3440, 3450, 3540, 3550, 5340, 5350, 5440, 5450, 5540 and 5550, plus Precision 3480, 3490, 3580 and 3590. Checking the model number helps identify whether it is the specified replacement for a notebook.

Once installed in a listed compatible system, it provides rechargeable power for use away from a fixed connection or to replace an existing battery in the supported Latitude and Precision models.