Batteries are boiling when charging...what gives?
I have two old Japanese motorcycles and recently I have been struck with bad battery luck. I have had them hooked up to battery tenders (trickle chargers) for days on end to keep the battery fresh. Well I just started noticing that the batteries are boiling...or at least thats how they sound. Stupidly, I decided to open one of the cells of the battery when one was boiling, and I got an eye full of battery liquid (yes, it burns). Well today I pulled my bike out and found that one of the caps burst off, spraying the liquid all over my paint and chrome, ruining most of it. I did notice that the overflow tube was pinched, which might have been building up pressure inside the battery?
The strangest thing is that I did not have this problem at all (that I know of) last year.
I'm not sure. Has anybody else had a problem like this before? When I took my other bike out the other day, 3 of the cells were bone dry, which I assume is from the liquid inside boiling up and discharging down the overflow tube.
I have also taken the batteries out of the bikes and hooked them up to the tender outside of the bike, and I still get the same problem. Maybe just bad battery tenders?
Last edited by joeyd71; 04-30-2012 at 08:53 PM.