12 volt engine starter to power a lipo charger

[notatoy]

hi guys not sure if any one has done this before so hear goes , lets say i am out in the field with my electric r/c and need to run my lipo charger but dont have a car batterie to run off so what about a alternative light weight and portable and cheap like this . http://www.amazon.co.uk/Blackspur-En.../dp/B000FTDYEK will it work or no chance ??? thanks in advance