Hi everybody, to answer Bills question, the bank was reading 75% on smartgauge when I turned on the power.
Zenatoamm, it cost £129 for the lot, but I already had the extra cable and the drill and 6mm taps required to fit it.
W+T I have yet to find that out, but I only bought it to charge the batteries whilst away from the boat everything else will be a bonus. I am fairly sure it will recharge my phone,tablet etc. If you want to run the fridge, heating and other appliances the a much bigger unit will be needed say 400w.