Please Help Mk5 Ci Camper Electrical trouble

[Longshanksone]

PLEASE HELP!!

My first post, my M reg 2.4 turbo diesel Ci Meridien has started to mess me about. She starts off the running battery, but it seems that radio, head lights, windscreen wipers basically everything that shouldn't be is running off leisure battery!!!!
As I don't have a split charge relay connected I get half way through a journey and I lose all electrical power and haven't a clue what's happening. Never used to do this just started! Any ideas PLEASE.

Lee

[captain hook]

Loads if I could see it

Where are you

[Longshanksone]

Hi captain cook! I'm in Littlehampton West Sussex! But as your miles away anything maybe I can do with guidance? Thanks
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