Dell RJ40G Laptop Battery
Price in Sri Lanka

Restore portable power to your compatible Dell laptop with the Dell RJ40G replacement laptop battery. Designed for selected Dell Latitude business laptops and Precision mobile workstations, this battery provides a replacement option for a worn or degraded battery that no longer holds sufficient charge or provides reliable cordless operation.

The standard RJ40G variant features a 63Wh capacity, 15.2V rated voltage and approximately 3,941mAh capacity. It uses rechargeable lithium-based battery technology and a four-cell configuration. It is designed to support everyday computing, office applications, professional workloads and other compatible laptop tasks. Actual battery runtime depends on the laptop configuration, workload, power settings and battery condition.

The Dell RJ40G battery is associated with selected Dell Latitude 5420, Latitude 5520 and Precision 3560 models. Associated replacement part numbers may include 075X16, M033W, WY9DX and P137G, depending on the specific compatible variant. However, the 42Wh WY9DX battery is a different configuration and should not be treated as interchangeable with the 63Wh RJ40G.