all ordered thanks again
When it arrives you will find a quick guide inside to set it up.
The main setup involves charging voltage. These setting will depend on what battery type your leisure battery is. For example, a maintenance free leisure battery would be set to be charged at 14.2v which is the default setting (or it was on mine.) A standard 'open' battery can be set to be charged at 14.6v and there are other charge settings for AGM and lithium batteries.
My Sterling unit came with a battery temperature sensor which effects how the charger deals with a very cold lithium battery. A cold lead acid battery can be charged at a slightly higher voltage so the temp sensor is a good option although not essential when charging these.