this thing actually has some suction power for the whole 20 seconds the battery lasts. currently writing this review as i wait for the battery to recharge...again. if you have pets that shed this is not for you. i usually use this in the second highest power and the battery does not last for deep cleaning of one room (and mind you, my house is pretty small) and to make matters worse samsung doesn't even carry the extra battery needed which would make cleaning a little bit less frustrating.