I don't have a tourer but I have a static which is on a site has no mains electric. There are only 20 caravans on this site and everyone uses a generator. However, I have been using a car battery with an invertor to power the tv on a night and I was looking at leisure batteries. Whats all this '120' life cycles, '500 life cycles'. Is this the amount of time it can be left to run flat and then re-charged? I only power a portable tv.
Anyone know what type of battery I should get for this. Like I say, it will only be used to power a portable and perhaps re-charge my laptop.
A caravan leisure battery is designed for a slow discharge(thicker plates I think)so will last longer than a car battery when being used as described by you. If your car battery is still ok just continue to use it, when it does fail(ie wont hold a charge anymore)buy a caravan leisure battery.
------------- Sell my camper? I'd rather eat school semolina!
A bit of advice, look out for a proprietory 12 volt TV rather than using an inverter as an inverter is a very inefficient way of running a TV. You have a transformer in the TV usually returning the voltage to 12 volts. This is likely to be about 80% efficient, the inverter only about 70% efficient, so about 50% of the energy is being wasted. Given that there is only a limited amount of energy in the battery, this is a huge cost and also reduces the life of the battery.