Originally Posted by grandbanksbayfield
We need new batteries the current 4D's being 12 years old. What do you owners recommend? I do not want to change the charging system and will be a pretty light user of electricity.
If you have travelled the south shore of Lake Superior, which anchorages would you recommend? I know the obvious ones like Munising, Grand Marais, the cut through Kewanee, etc. If the breeze is from the south, are there good places to simply pull in fairly close to the shore and anchor?
Might be useful to consider how often (perhaps as a percentage?) you might be anchoring out, and for how long at a time. And whether you're got a genset to recharge as often as necessary, whatever that turns out to be.
And "light user" can mean lots of different things... from a few interior lights occasionally... to major load with interior lights, fridge(s), maybe electric cooking, anchor light, plotter for anchor alarm, VHF, etc... so maybe you can better quantify that...
And then are you meaning house batteries only? Or do your 4Ds also start and engine or two?
And how easy is it for you to periodically service batteries? Easy suggests FLA could be fine, more difficult suggests maybe AGMs would make your life easier.
In very general terms, two 12V G31s (for example) weigh less than a single 4D, so might be easier to schlepp and install.
In very general terms, pairs of deep cycle 6V golf cart batteries are often a good solution for house loads.
But it's hard to suggest "best" since situation and circumstances tend to be personal...