My need: to facilitate cleaning inside the car + occasional use in the home for anything that needs to carry the vacuum cleaner (staircases, shelves of cupboards, lampshades, etc ...). The battery-hand vacuums: very limited useful life; charging time ultra long battery; comments on their life that left me skeptical! So I looked for another solution. 1st solution: 1 PD1200 vacuum cleaner and a 2nd battery, but I think it is necessary to unscrew etc ... to change the battery; no interest daily 2nd solution: vacuum cleaners have 2 PD1200 battery for sufficient autonomy and always have one available. The ideal for my taste but large budget ... I chose this one: the PAD1200, its "twin" car version (with cigarette lighter) + an adapter for electric cooler (sufficiently powerful). Nickel for the car. Tiny. Very correct suction power. And inside, I use the adapter. The hose is very convenient. I tested. It works very well. Certainly with a wire but at least I could take the time to suck without minuter my time. Whether on car battery or AC outlet, it is certainly not recommended to use more than 30 minutes non-stop, but this solution is perfect for my needs. With an overall budget very correct for my taste. By cons, for a garbage collector usage, with the wire, it's probably not ideal. The PAD1200, unlike PD1200, is not provided with either the mounting bar accessories or with the turbo-brush. Suggestion manufacturers: "mixed" versions that can run on both battery and AC / 12V, like our mobile phones. Maybe it already exists but I have not found ...