Hello everyone. I have had my Swift Escape 622 for 3 years and we wild park a lot. The battery lasts 2/3 days. After each use we take off the battery and put it on a trickle charger. I am interested in solar panels but am totally confused by the choice and costs involved. Do the small briefcase ones work or do you suggest going the whole hog and having a roof panel fitted ? We run lights & TV from the leisure battery, heating/water off the gas when it's cold. Thanks