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  • Battery charging question

    Posted by jard on July 9, 2014 at 6:00 pm

    I have a 3 bank on board battery charger and I get to go out on the lake 2-3 times a week. Ive read its best to hook it up immediately after getting back which I normally do, but is it best just to leave it plugged in forever or until the next trip or unplug it after the battery are charged? Is there any harm in leaving it plugged in at all times??

    simplecircuit replied 9 years, 11 months ago 6 Members · 7 Replies
  • 7 Replies
  • krogers79

    July 9, 2014 at 6:30 pm

    That depends on what type of on-board charger you have. Most of the new ones will get the batter to full power and then trickle charge to maintain the charge. As soon as I get back from the lake, I hook mine up and they stay hooked up until the next time I go out…usually 5-6 days later. In the winter…it is plugged in all the time.

  • degaman

    July 9, 2014 at 6:46 pm

    Agree with Krogers.

  • Brian

    July 9, 2014 at 8:51 pm

    I have ways been taught to disconnect chargers after they are charged. That might just be what was recommended for my 3 bank charger though. I do know a few people that left the charger on all the time and it appeared to suck the life out of them.

  • jard

    July 10, 2014 at 2:11 am

    I have the 3 bank version of this one (no, I didnt pay that price for it. You can get it much cheaper on amazon). It says plug it in and forget it! Its worked great so far and I tend to leave it plugged in.

  • rolltidech

    July 10, 2014 at 5:28 am

    I have the Bass Pro Shop Xps 3 bank 5amp charger.
    I also unplug mine when its done charging and I’ve had it for about 4 yrs now.
    My batteries stay charged for the whole trip.

    Chuck Howell..

  • krogers79

    July 10, 2014 at 2:56 pm

    Jard, the one you have has the long term maintenance on it, so you should be good. I guess it would be good to get in a habit of unplugging due to the fire hazard, but my motto is…always be ready. 😀

  • simplecircuit

    July 10, 2014 at 3:05 pm

    I leave mine plugged in all the time when not on the water.
    I also use AGM batteries. So, I’m not sure that there is quite the same risk of off-gassing or overheating as with flooded plate batteries.
    As long as your charger charges in stages – full power to trickle, it should be fine to leave it plugged in whenever not on the water.

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