super dave Posted February 25, 2015 Report Share Posted February 25, 2015 I have 2 deep cycle batteries that are dead. I know one is done but one might be salvagable. anyone know what i can do with the dead one and anyone know of a place that can recharge? I"m in pickering/scarborough. Thanks!! Link to comment Share on other sites More sharing options...
jimmer Posted February 25, 2015 Report Share Posted February 25, 2015 I think metal recyclers will take them. Most places that sell batteries will test the questionable one to see if it's any good still and recharged it for you. Link to comment Share on other sites More sharing options...
leaf4 Posted February 25, 2015 Report Share Posted February 25, 2015 With the one that's dead dead, you can return as a "core" they'll give you $10 towards a new battery, the other I don't know what anyone would do with it other than put it on a trickle charger, though you can have the battery diagnosed to see if it still meets all the cold cranking amps etc its supposed to and that will help your decision to either keep it or buy 2 new ones Link to comment Share on other sites More sharing options...
manjo39 Posted February 25, 2015 Report Share Posted February 25, 2015 Happened to me last year. I put it on a charger for a long time, but it did not come back. I took it into where I bought it. They sent it to the manufacturer and they revived it. It doesn't hold a charge as long anymore. Link to comment Share on other sites More sharing options...
porkpie Posted February 25, 2015 Report Share Posted February 25, 2015 (edited) Keep it for the next battery as was mentioned. Saves you $10. Even if it's just a car battery, they don't care what kind of battery you turn in. Edited February 25, 2015 by porkpie Link to comment Share on other sites More sharing options...
super dave Posted February 25, 2015 Author Report Share Posted February 25, 2015 thanks guys. Link to comment Share on other sites More sharing options...
John Bacon Posted February 25, 2015 Report Share Posted February 25, 2015 If you think it might be salvageable try connecting it parallel to a good battery and then connect the charger to the two batteries. Sometimes this will allow an apparently dead battery to take a charge. If it doesn't work, it is still worth $10 towards a new battery. Link to comment Share on other sites More sharing options...
Freshtrax Posted February 25, 2015 Report Share Posted February 25, 2015 If I have a stubborn battery, that won't take a charge I like to "zap" it at 30 amps for a few min. Then put it on a trickle.. Sometimes it works sometimes it does not. something about bubbles on the plates or something. Link to comment Share on other sites More sharing options...
Freshtrax Posted February 25, 2015 Report Share Posted February 25, 2015 And make sure they are at room temperature. Link to comment Share on other sites More sharing options...
Blue Lk Posted February 25, 2015 Report Share Posted February 25, 2015 Sometimes deep cycle batteries become sulfated (build up on plates) Some "smart" chargers can identify this condition & go into a desulfate mode,enabling the battery to accept charging. My cheap ctc "smart" charger has saved more than 1 battery for me when I thought they were finished. Link to comment Share on other sites More sharing options...
Sinker Posted February 26, 2015 Report Share Posted February 26, 2015 Check the cells for water while your at it. Refill them with distilled if they're low. S. Link to comment Share on other sites More sharing options...
wormdunker Posted February 26, 2015 Report Share Posted February 26, 2015 You need a charger that will go into a de sulphation process which will remove the electrolyte from the plates & possibly revive your batteries. Battery minder model 12248 is the one I use. For an education on batteries & chargers go to "battery stuff.com" Intense amount of reading but, well worth the info. Link to comment Share on other sites More sharing options...
slidehammer Posted February 26, 2015 Report Share Posted February 26, 2015 If you are running both the batteries for a 24V. trolling motor, you may want to consider getting 2 new ones and coring out the ones you have. Link to comment Share on other sites More sharing options...
steelhedrmatt Posted February 26, 2015 Report Share Posted February 26, 2015 Check the cells for water while your at it. Refill them with distilled if they're low. S. Bingo!! Had one battery for my trolling motor last summer that wouldn't take a charge. Popped the cap and it was low on water. Topped it up and it was good to go. Good place to start. Link to comment Share on other sites More sharing options...
Big Cliff Posted February 27, 2015 Report Share Posted February 27, 2015 A combination of several of the above: Check for water and refill with distilled water if necessary Hooking in parallel to a fully charged battery can sometimes re establish polarity, if your battery is so dead that your charger can't detect polarity, most won't try to charge. Use a charger that can detect and desulphate a battery. If all of these things fail, take it to a scrap yard or use it as a trade-in for a new battery. Link to comment Share on other sites More sharing options...
Canuck Posted February 27, 2015 Report Share Posted February 27, 2015 If they are a pair you use together and they are not very close in capacity, rating etc or if one is OK and the other weak, the bad one will cause the good one to quickly go bad. Its always best to replace them as a pair. They will last longer. As others have said, a smart charger that desulfates or a battery shop with a commerical charger can revive some batteries to some percentage of new capacity, but they wont be anywhere near 100% and should only be used solo, if at all. Link to comment Share on other sites More sharing options...
Mister G Posted February 27, 2015 Report Share Posted February 27, 2015 Sometimes deep cycle batteries become sulfated (build up on plates) Some "smart" chargers can identify this condition & go into a desulfate mode,enabling the battery to accept charging. My cheap ctc "smart" charger has saved more than 1 battery for me when I thought they were finished. EXACTLY.......and this is why a on-board charger is so important if you really want to get the most out of all your boat batteries. All modern on-board chargers are "Smart Chargers" to keep batteries de-sulfated not to mention how easy it is to just plug in your "boat" when not fishing. I would not have a boat without one. Link to comment Share on other sites More sharing options...
BillM Posted February 27, 2015 Report Share Posted February 27, 2015 I think I need a new pair of Group 31s before the soft water season starts. Link to comment Share on other sites More sharing options...
Sinker Posted February 27, 2015 Report Share Posted February 27, 2015 The difference from 27's to 31's is night and day. I couldn't believe how much more power I had with the 31's. S. Link to comment Share on other sites More sharing options...
BillM Posted February 27, 2015 Report Share Posted February 27, 2015 The difference from 27's to 31's is night and day. I couldn't believe how much more power I had with the 31's. S. That's what I've been hearing, I run a pair of 27s right now but my Terrova really tends to suck them dry if I'm on it all day. Link to comment Share on other sites More sharing options...
Raf Posted February 27, 2015 Report Share Posted February 27, 2015 even the 29 series wally world one makes a big difference compared to the 27 on my 12v 55pd Link to comment Share on other sites More sharing options...
Sinker Posted February 27, 2015 Report Share Posted February 27, 2015 (edited) even the 29 series wally world one makes a big difference compared to the 27 on my 12v 55pdI run two 31's for my 12v 55pd.....it will troll steady at 1.5-2mph all day long, no problem, no matter what the wind. I might have to troll with the wind on really windy days though. S. Edited February 27, 2015 by Sinker Link to comment Share on other sites More sharing options...
fish_fishburn Posted February 27, 2015 Report Share Posted February 27, 2015 Bill, you will have to change your battery trays as well if you go to 31s. Link to comment Share on other sites More sharing options...
BillM Posted February 27, 2015 Report Share Posted February 27, 2015 Bill, you will have to change your battery trays as well if you go to 31s. Ugh, thanks for the heads up I guess I gotta break out the measuring tape! Link to comment Share on other sites More sharing options...
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