Quoting Jonathan Kay: This is the one I recommend:Quoting Jonathan Kay: click here, because you're worth it.1 Disconnect that charger and don't use it again until you know more about what happened.
2 Finding out what happened.
That battery is sealed so checking levels isn't relevant.
Visual check on wiring etc; anything detached or flopping around or cooked?
Then you need to know if it's charging while running.
3 Getting it going and testing charging and the condition of the battery.
Start it with that battery and another charger or with another battery and then measure voltage at 3,000 rpm. When it's been charging for a bit measure voltage at rest and while cranking.
Jonathan
Edited by - Jonathan Kay on 17 Sep 2014 11:54:00