I have read the other review , and I can only say that this vacuum do NOT run for 20 minute before lose its charge ... the response\/review from B&D; state 7 minute of continuous run time . I love the versatility of all the tool and the ease with which you can change they , but this vacuum 's run time be very short . we wash both of we car today -lrb- and they be not even really filthy inside -rrb- , and this vacuum do not have enough of a charge to even clean the interior of two car . and it be constantly plug in and charge when not in use . we have a Dustbuster for many year which be power by the B&D; VersaPak rechargeable battery , but it finally die . we have other B&D; small appliance and outdoor product which use the VersaPak battery , and I know the battery still can be purchase . however , Black & Decker no longer sell any of those product , only battery . that Dustbuster be 100 % more reliable and powerful than this minus canister vacuum . Suggestion to Black & Decker : to avoid disappointed customer , perhaps you should consider print the run time on you box . I be equally disappointed , for the same reason , with you blower and whip which we use for yard work .