Laptop charger & caravans

CM0308
CM0308 Forum Participant Posts: 4
edited August 2013 in Caravans #1

Hi there new to camping, so hope someone can answer this. We spend quite a lot of time in our caravan without being on 230v power, i need to be able to use laptop for work sometimes, looking at a 12v to 230v converter (something like this http://www.amazon.co.uk/BEST-SELLING-INVERTER--Universal-Converter-MRI1513U/dp/B008HLSCIQ/ref=sr_1_7?ie=UTF8&qid=1376950369&sr=8-7&keywords=car+laptop+charger
 but suspect it would quickly drain the leisure battery?  (We have got 40w solar panel on the caravan) has anyone got any experience on this that could give me some advice?