Keep compatible Dell notebooks in service with a rechargeable battery designed to restore mobile runtime and reduce interruptions. With 11.1 V DC output and 4,400 mAh capacity, this battery is built for users who need dependable day-to-day operation from Latitude and Vostro systems without constantly searching for a charger. For IT teams supporting mixed notebook fleets, a replacement battery like this helps extend the useful life of deployed hardware and maintain productivity between charges. It is a practical choice when the original battery no longer holds sufficient charge, but the notebook itself remains fully capable. This battery is compatible with select Dell Latitude 3440 and 3540 notebooks, as well as Dell Vostro 14-3446, 14-2421, and 14-2521 systems. That compatibility makes it a focused replacement option for organizations that value predictable fit, rechargeable convenience, and a straightforward path to keeping users working longer away from the dock.