david100952
Member
I have trawled through the numerous threads on batteries/charging questions and cannot find a similar case to address my query. My starter battery seems to slowly lose its ability to turn over the 1GM10 after a few weeks and a half a dozen uses.
I have a small cruiser (sail) and have a house and starter battery system controlled by a BEP VSR cluster. I keep the batteries ashore in winter and keep them topped up with a "smart" charger on maintenance cycle which seems to work well as they both return to service in spring with full charge and work well. I replaced the Hitachi 35 amp alternator last year to try and solve the problem and have completely rewired the system and checked that I do not have any "leaks". I am sure the VSR is wired correctly and checked the voltage going in to the start battery at 13.7 when the engine is running. When I charge the start battery with my shore powered charger it takes a full charge and starts the engine well afterwards but after a few weeks it wont turn it over by itself and I have to use the bypass switch and put both batteries on line to start the boat.
Short of buying new batteries I have addressed every possibility and I still cant find out why this is happening. I have not replaced the batteries because I had them tested by a marine engineer and they are fine. - HELP!!!!!!
I have a small cruiser (sail) and have a house and starter battery system controlled by a BEP VSR cluster. I keep the batteries ashore in winter and keep them topped up with a "smart" charger on maintenance cycle which seems to work well as they both return to service in spring with full charge and work well. I replaced the Hitachi 35 amp alternator last year to try and solve the problem and have completely rewired the system and checked that I do not have any "leaks". I am sure the VSR is wired correctly and checked the voltage going in to the start battery at 13.7 when the engine is running. When I charge the start battery with my shore powered charger it takes a full charge and starts the engine well afterwards but after a few weeks it wont turn it over by itself and I have to use the bypass switch and put both batteries on line to start the boat.
Short of buying new batteries I have addressed every possibility and I still cant find out why this is happening. I have not replaced the batteries because I had them tested by a marine engineer and they are fine. - HELP!!!!!!