Sunday, October 12, 2003, 9:59:44 AM, Vernogc wrote: > Thanks, this is what I thought but I'm a residential builder and > not too knowledgeable in marine electronics. As a further thought on this - I'd put disconnect switches between each battery and the common positive bar - this will allow you to easily disconnect each battery, so you can test the batteries individually. (Of course, if you do this, you may want to use the isolater in the TC-40 to feed each battery individually, but then you need more circuit breakers in the separate charger feeds. I wouldn't bother with this if the batteries are normally used together, and the disconnect switches are just used for testing.) I have twice (on two different boats) had one of two paralleled batteries die, so I like to be able to use the batteries one-at-a-time occasionally, just to check on the state of things. -- Peter Bennett, VE7CEI Vancouver, B.C., Canada GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver-webpages.com/van-ps