Plug your Shark® Rocket® vacuum into the wall to recharge the lithium-ion battery. Compatible with 6-cell batteries in the Shark Rocket Cordless and Shark Rocket Cordless Pro Vacuums.. This OEM replacement part number XBCHGX140 is only compatible with the following Shark Vacuum models: Cordless Stick Vac models (Rocket, Rocket Pro, Pet, Pet Plus, Anti-Allergen). Please be sure to check your vacuum model matches one of these before buying!!