Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Even though it has been on the charger it will not come on. What can be done?
Document: The same goes for returning the filter to the device and putting it back together...its like a rubics cube.A true waste of 40 bucks. Don't buy this! It doesn't even look very cool.
The bad reviews almost made me not get it, but I'm glad I did. I got it mostly for cleaning up pet hair. It works great for small jobs. The vents aren't a problem because they aren't on the bottom and I have had no problem putting it on the charger. It is kinda loud and needs to be emptied often, but it works great.
just banged most of the dust off the filter & reused, until it got to the point where i had to wash it...no big deal. it's very convenient, has great suction & i didn't have to drill holes in the wall for a charger plate.7-3-10 update! !i put this in as a comment, but then u have to click on the comment link to see.it has now been almost 7 months since purchase & am still happy w/ it.
As a cordlesas vac it is quite powerful and does the job nicely...it is too large in scale, looks overwhelming on it's table and the unit needs to have two arrows or match up labels to help replace in charger properly.The area that match up  are extremly small, in order for the unit to fit the charger properly.Worth the money as a vac but should never have been introduced as such a large scale unit.
I bought this for my apartment last summer and it works GREAT. It's very powerful for its size and handy to have around the house for picking up spills--way better and more convenient than lugging out the "big" vacuum from the closet. I love that it's cordless too because you don't have to worry about finding an outlet. I even use it to clean my car--no more driving to the gas station to use their vacuums.
OK...this is quite possibly the most retarded device ever crafted. It barely picks up even simple dirt and debris, and when it does it fills the filter up and gets clogged in seconds, not minutes.Also, it is about as easy to return the device to its charging stand as it is to hack into Bank of America and swipe a few mil. Really, its like cracking a safe to lock in back into place to charge.
We've been using this vacuum for the past 8 months and it has been perfect! It looks great in the living room and is always handy for toddler crumbs and other messes. My 20 month old son can even operate it. It has great suction power for a little machine and even works around the litter box with hard to pick up cat litter. It's a great little machine.
The only reason I am giving it a 4 is because I find the light to be annoying, I have the vacuum in my bedroom and had to turn it around so it faced the wall because it was so bright. Not really a big deal though.
i read some of the negative reviews w/ skepticism & bought this anywayDirt Devil 0213BLU Kone Cordless Rechargeable Handheld Vacuum Cleaner, Blue...it has proven my skepticism to be well-founded. perhaps the negative reviewers were comparing this to a reg vac, which is apples to oranges. for its size & the fact that it's a handheld & cordless, it works very well.
brought it home & recharged w/o emptying & sucked up a huge amt of dry catfood & the fine dust from it, & there was a lot of stuff in there!
Answer: The product must be the Kone vacuum as that is the product on this page. And... I am having the same problem. Could the battery be exhausted? I have had this vacuum for several years.