Ive order a cheap mains to cigarette lighter output thing for the moment until I can afford the 4 port charger at next bit payday (possibly May unfortunately!)
Having seen that the cigarette lighter charger works I decided to check the figures
The charger is looking for input of 10.5 - 21V DC, 4.6A
The plug is outputting 12V 600mA 7.2A
Should this work?