SailNet Community - View Single Post - Lifeline Batteries
View Single Post
post #27 of Old 06-03-2012
Mermaid Hunter
SVAuspicious's Avatar
Join Date: Oct 2006
Location: on the boat - Chesapeake
Posts: 3,998
Thanks: 0
Thanked 158 Times in 141 Posts
Rep Power: 10
Re: Lifeline Batteries

Bill, Dave, and RC are--as usual--on point. I won't repeat their suggestions.

I will share my slightly different configuration and procedures in the hope someone will find it of some interest.

I have a 675 Ah house bank of six 6VDC wet traction batteries (the EU 'name' for golf cart batteries) and a 12VDC start battery. The only connection is a crossbar switch normally left open.

On my Yanmar 4JH4E is the original 55A Hitachi alternator, internally regulated, and a 110A (I think) Balmar alternator with external Balmar regulator. The Hitachi charges the start battery and the Balmar charges the house bank. My Mastervolt MASS 80A charger is wired to the house bank and the 3A trickle line feeds the start battery.

Accordingly nearly any failure (like the sense line on my Balmar breaking off last month) can be addressed by closing the crossbar switch.

Simple is better.

My battery bank is under the main, aft berth. Whenever we wash the sheets (every month or so at dock and every couple of weeks (or less with Janet aboard full time)) I dig in and check the batteries for water and record the specific gravity, giving me a check on the battery monitor.

Checking the batteries is easier and faster than making the bed.

sail fast and eat well, dave
S/V Auspicious
beware "cut and paste" sailors.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
SVAuspicious is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome