?31V Fast Charge Design? With 31V Fast Charge Design, It Takes Only 4-5 Hours To Fully Charge The Vacuum Cleaner, Then It Can Be Used For 15-45 Minutes. Extra Batteries Can Also Be Purchased To Delay The Usage Time. | | ?Two Charging Modes?Two Charging Modes To Choose From, You Can Use The Adapter To Charge The Cordless Vacuum Cleaner Battery Separately Or Charge The Whole Handheld Vacuum Together Without Removing The Battery. | | ?For Cordless Vacuum?Only For Cordless Stick Vacuum Sv002. | |