Thanks for all the input regarding batteries, I have read a lot of it and would like to clarify 2 points about my set up.
1) I charge daily for at least 2 hours. I charge at least once a week until the batteries are charging on float. I have 3 lights on my charger, red for teh start up charge which may be as much as 40 amp, orange for the middle bit of charging usually says 15amp or thereabouts, and it usually drops to 4 amp when the green light comes on. When it reaches float it says the batts are at 14.45 or 14.6 amps and I thought that was the correct way to charge. It has never taken 8 hrs to get it up to 14.6 when the genny has been ok. Does it not mean that the batts are fullly charged when the green light comes on?
2) Also I thought it was inadvisable to charge for more than 2hrs at a time when the batts might be a bit poorer as they might create gas? There is a heat sensor on the batteries but I have never known it to intervene, but I have smelt battery gases during charging when the batts were poor before I changed the whole bank.
The 25amp alternator is only used when the main engine (greaves 2ydm) is running as it costs more to run but it is good to run it from time to time. I agree it is a bit low if the genny breaks down, but I just use less power if I find myself having to run my old noisy. When i am chugging it keeps the domestic batts nicely charged up (but I dont chug much these days as I am obliged to wait for a friend to come along with me to crew).
Think the wiring is ok. Think I will get a man in to install the panel and check the electrics at the same time tho. So many variables!
bluegreen