I have been approached by a company with the following problem, they have a van which is only used once a month or maybe once every 2 months, the problem is that battery goes flat over the down time, it is a new battery and they don't want to take the battery out of the van every time. they are asking is i could put a charging unit in the engine compartment and a waterproof plug in on the outside wing, is this vaiable and safe and where could i get a charging unit like this? RS or CPC?
