Hi,
The CTEK comes raedy witha 13 amp 3 pin fused plug, so I use it by plugging in to a van socket, or when the van is in store I remove the battery and charge it at home. When used in the van I have to use an extension lead and disconnect the battery terminals. The vans own power supply keeps the vans 12 v kit working. I do plan to install a link that will allow me to isolate the ZIG and connect directly into the van charging circuit so avoiding the use of an extension lead and having to take off the battery terminals. I purchaed the CTEK from VERTAR (Use Google) and they were a good price and quick delivery. For my battery I usea Elecsol carbon fibre and for 100-110 amp hrs it is only 2kg heavier than my last 70 amp hr lead acid. Elecsol are pricey but have good reputation anda 5 yaer gurantee. I need a good battery for CLs and the mover.
Cheers