Tpoppa Posted August 22, 2009 Report Share Posted August 22, 2009 ...so I was installing a new battery on the GF's Nighthawk 2fity. I added the electrolyte, charged it, and let is sit per the instructions. I attached the positive terminal, and as I ws 'trying' to attach the negative terminal the battery started hissing and getting hot. I disconnected it and let it sit for 5 minutes. I tried again with the same result. WTF? Did I get a bad battery?I never even had the ignition turned on. Quote Link to comment Share on other sites More sharing options...
Likwid Posted August 22, 2009 Report Share Posted August 22, 2009 Get to the choppaaaaaa!!!!!!!•••••••••••••••••••• Quote Link to comment Share on other sites More sharing options...
wrillo Posted August 22, 2009 Report Share Posted August 22, 2009 its gonna explode right meow!!!!!!!! Quote Link to comment Share on other sites More sharing options...
buildit Posted August 22, 2009 Report Share Posted August 22, 2009 Two things:1. hook up the negative first then the possitive2. are you sure you are connecting to the right terminals? If the fuses are blown on the bike you put it in backwards. At least you hope the fuse blew if you installed it backwards. Quote Link to comment Share on other sites More sharing options...
SWing'R Posted August 22, 2009 Report Share Posted August 22, 2009 I know it sounds like an obvious question or thing to try, but, check the battery with a meter and make sure that the polarity is actually correct. I've seen a battery charged BACKWARDS so that the polarity actually read the opposite of what was marked! Quote Link to comment Share on other sites More sharing options...
Lost Posted August 22, 2009 Report Share Posted August 22, 2009 He said that he added the acid. As suggested check it with a volt meter. I also believe that the battery may need to sit for a while with the acid in it before installation. Let me know what you find out. Quote Link to comment Share on other sites More sharing options...
conn-e-rot Posted August 22, 2009 Report Share Posted August 22, 2009 Sounds like a bad battery Quote Link to comment Share on other sites More sharing options...
buildit Posted August 22, 2009 Report Share Posted August 22, 2009 Negative is the first to be removed and the last to be connected.Really??? And all these years I've done it backwards. I always figured it was best to have it grounded before going to the live circuit? Live and learn. See what happens when a scientist trys to play mechanic! Quote Link to comment Share on other sites More sharing options...
ReconRat Posted August 22, 2009 Report Share Posted August 22, 2009 (edited) It's because the positive side is the one that wants to throw sparks.Also, if you disconnect the positive side first, a short circuit might be made to the chassis, which is still hooked up.Disconnecting the ground first prevents that.A hissing battery is venting gases. Either through the vent, or through a crack.(hydrogen gases, no sparks or flames around that please)I don't know why. A battery can hiss for a lot of reasons.It should probably not hiss. Certainly not with the engine not running.Check battery voltage for 13.8v to 14.5vCharge it or have a load test done if in doubt.edit: checking the polarity. It would not have charged up backwards when adding the acid.But check and make sure that the new battery is the same as the old one.I mean are the positive and negative terminals on the correct sides.I've been given batteries that look the same, but the terminals are reversed. Edited August 22, 2009 by ReconRat moar Quote Link to comment Share on other sites More sharing options...
Tpoppa Posted August 22, 2009 Author Report Share Posted August 22, 2009 Well, I let it sit overnight and tried it again and now everything is fine. Go figure. Quote Link to comment Share on other sites More sharing options...
Lost Posted August 23, 2009 Report Share Posted August 23, 2009 Glad it worked out. Last one I did said let it sit for an hour or so before installing. Quote Link to comment Share on other sites More sharing options...
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