I'm not sure on the one you have posted here but I know the one I got off ebay wouldn't jump start anything! I went with a cheaper model so my thoughts are spend the few extra bucks and get a good one!
I have 2 of those. One i keep in my wifes truck and the other's a floater... they work great IF you keep them charged...
If you dont' use it... plan on plugging it in about once every few weeks (even just to the cigarette lighter in the car).
Jumpstarter
