jamesferg78
New Member
Hi All, this may be a stupid question but appreciate the help - when plugged in to shore power at the marina, should I switch the battery switches to off?
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Hi All, this may be a stupid question but appreciate the help - when plugged in to shore power at the marina, should I switch the battery switches to off?
All good feedback thanks everyone! While we're on the subject of newbie electrical questions, and I realize this is entirely dependent upon what I'm running (figure just the stereo, amp etc.) but how can I figure out how long the batteries will last when I'm on the hook - I have two AGM 12V 55AH 785 MCA which were new a few months ago.
+1 for leaving a house battery on even if your gone.
Now your bilge fills up, and floods into your aft cabin, well THAT pump is not directly wired to the battery, and doesnt turn on... then the water fills the midship locker, where again that pump is not connected to constant power.. now your boat is sinking at the dock.
All this can be avoided by leaving a house battery on, with a charger going. Ask me how I know...
Another newbie question coming up.No. Some items only run on DC voltage. Leave the house battery on and make sure you turn on the charger. This way everything in your boat will be operational.
And own question answered properly.Hopefully this isn't too much of a hijack, its mostly in the same vein.
Another newbie question coming up.
New purchase and I know "stuff" has been done that probably isn't by the book. I'm looking to map out my DC system so I can have some confidence on the water. You mention "make sure the charger is on" ... actually, I think I just answered my own question here.
Below is a pic I was taking for general condition during inspection, however I think I just worked out (yes, I'm really new at this) what the white/blue box is a charger.....? I know the black one, white writing is one, and I assume is hooked up to server as an alternator to the genset battery.
Is the white/blue one here likely to be a charger for the house batteries, hooked to shore power? This would follow what you're suggesting....
Whilst we're on this subject of newbie battery Qs, any tips for mapping out my 12v system? I'll start a thread with pics and diagrams once I've collected some info this weekend.
View attachment 25808
And I think I'll need to sign up for an account if I want to post some photos!