12V DC wiring for 2 battery system with battery switch
OK, I've seen a number of posts dancing around the subject, but decided rather than hi-jakcing a thread I'll start a new one, so my apologies for anyone who feels this has been discussed to death.
I have a 1997 2800 SCR with 2 batteries connected to a two bank battery switch. The whole thing started when I found the orginal old group 24 flooded batteries were dead when I bought this boat. I upgraded to group 27 flooded, but the boat had a cheap 2 bank battery charger on it that cooked the group 27's (Now I beleive I understand what happened to the batteries I replaced).
I bought a new battery charger and decided to go with group 31 AGM batteries, (which the new charger supports). While hooking up the new battery charger and batteries I found a few things which concerned me:
1) There are devices connected to a dedicated battery which I cannot control which battery is being drawn upon and no means to easily swtich the device from one battery to the other.
2) I have no means of turning these devices off with the battery switch in the event of fuel vapors or electrical fire
3) There are mutiple ring connectors on a single battery terminal on both batteries.
Here is how things are currently configured:
Battery 1 connects to Batetery 1 on the battery swtich
Battery 2 connects to Battery 2 on the battery switch
Starter is connected tothe FEED on the Battery switch
Charger is a 3 bank charger connected to Battery 1 & Battery 2 on the swtich. The third bank is not currently being used.
1) Can I install a Power Post of Postive Bus bar and simply move the connections from the battery terminals to the Power Post or Positive Bus Bar? Couldn't I then run a line from the feed on the switch to the positive bus bar/Power Post to isolate everything using the switch?
2) Is there a poblem running the legs from the charger to tehe Battery 1 & 2 connectiosn on the switch, or should the charger be connected directly to the battery terminals?
3) How many connections should be on a single terminal on the batteries, switch or Power Post?
4) Do I need to leave the battery swtich set to BOTH in order to allow the engine to recharge both batteries while running?
I would think that by doing something along these lines EVERYTHING would run off of either Battery 1 or battery 2. I would like to start and run teh boat on battery 1 and then flip to battery 2 when on an morring or on anchor to protect teh battery used to start.
Thoughts??
Thanks in advance,
Steve
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