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batteries

  1. Boiling Batteries

    Electrical Systems
    Hi, When I came on board my C30 the other day, I realized my batteries were boiling. I shut of my battery charger and sake of good order also disconnected my shore power. I was puzzled as to why they were boiling as I hadn't been on board for a few days and I would have thought that the...
  2. Alternator Blowing Fuses, Won't Charge

    Gear & Maintenance
    A couple days ago, I noticed the voltmeter in the cockpit reading low (below 12 volts), then I noticed that battery 1 (which I use to run lights, electronics, etc.) was quite low (11.8 volts on the multimeter). Upon inspection, I found that the fuse on the line between the alternator and...
  3. Swapping batteries...one question.

    Gear & Maintenance
    My batteries in my 2 bank system are well past their prime. I bought 2 replacement deep cell batteries and am going to install them soon. My main question (and there doesn't seem to be much info online) is, what order to remove the terminal cables? I realize you remove the black (-) then the...
  4. Battery Switch rewired... wont turn OFF

    Electrical Systems
    I replaced all of my 4 gauge cables going from my two deep cycle batteries to the battery power switch (as well as the one going from battery switch to the alternator). The switch has the option to run on battery 1, 2 or both. But I'm fairly certain the way it was hooked up it was running on...
  5. Checking Alternator

    Electrical Systems
    I have an Atomic 4 engine, and I think my alternator is on it's last legs. The amp meter only goes up to about 12.7 when the engine is on. I'm told that it should go up to 13.5-14. I was told I should take it out and bring it to "pep-boys", or some other auto parts store where they can check...
  6. battery bank dual charger or triple charger?

    Gear & Maintenance
    Currently in my boat we have 2 x deep cycle 12v 150amh for house and 1 x starter battery for engine to start and a dual battery built in charger. if i run the 2 x deep cycles in parallel can they be charged as 1 battery since it would stay 12v and change to 300 amh? or will i need a 3 battery...
  7. Power Battery Set up for 27ft sailboat

    Gear & Maintenance
    I am looking into changing my 2 deep cycle batteries that keep failing on me. any suggestions for a good battery, inboard charger setup for a 27ft sailboat that doesn't use to much power normally for 2-3 day trips. Always docked at marina with power when not in use
  8. Solar Power for catalina 27

    Gear & Maintenance
    I am looking to purchase some solar panels to power my cat27. I currently have 2 deep cycle batteries on board. I am new to the solar world and am looking for some advice on what to get to make sure my batteries stay charged.
  9. Batteries - Replacement

    Gear & Maintenance
    Fellow Sailors! I believe it's time to replace my house batteries and as usually it's difficult to choose. I currently have two GC2 6volts installed in series, however I think it may be an overkill. I say that because I keep the boat on a mooring and use the engine about 10mins each sail...
  10. AGM Mounting positions

    Electrical Systems
    Hi! I've read in many places that one of the advantages of AGM batteries is that they can be mounted in many odd positions that wet cells cannot. In every picture I've seen or account I've heard, however, they are always mounted just as a car battery would be. Has anyone actually mounted one in...
  11. AGM Battery Upgrade and Charger

    Electrical Systems
    So I upgraded my Starting and House flooded cells (Group 27) to two Group 31 AGMs. Is there anything that I have to modify to accept these two batteries within the electrical system? I'm usually on a mooring, so it's not top of mind ... but I notice my pre-existing TrueCharge (Model 20 -...
  12. Leaving Dead battery on shore power charger

    Electrical Systems
    hi. My batteries are dead. i new they were going but i thought i could squeeze the rest of the season out of them. i could not. For several reasons (not in stock, i'm out of town for a couple of weeks, plan to modify battery compartment) i cannot install the new batteries i want for at least...
  13. A Guide: Choosing a Solar System for your Yacht

    Electrical Systems
    I've been reading sailnet for years, gleaning little bits of information here and there. One thing that I have done an extensive bit of reading on is solar power. I've learned quite a bit, and since buying my own cruising yacht I installed my own system and am now using it to cross the Pacific...
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