68Wh Li-ion laptop battery

The Dell W5W19 is a lithium-ion replacement battery for select Dell laptops. It has 4 cells and is identified as type MV07R, the battery model associated with part number W5W19. Check these identifiers when matching the battery to a compatible system.

Its rated voltage is 15.2 V, rated capacity is 4255 mAh, and energy rating is 68 Wh. These electrical ratings describe the battery’s power capacity for compatible laptops.

W5W19 identifies the part, while MV07R identifies its battery type. The battery supplies power when a compatible Dell laptop is used away from a fixed power source.