Charging qiestion

[Ohio Blue Tip]

If that's the case, you don't want to experience a battery blowing up.  I have had it happen once in my many years working with cars.  It was about 20 year back.  I had purchased an Olds and it had a Sears Die Hard which needed terminal cleaning, it was a side post mount, as I leaned over the finder to loosen the terminal bolt, the battery exploded when I turned the bolt.  My fore arms took the brunt of the explosion as the battery top came off, got acid in my eyes and face but was able to get to the garden hose for a bath.  Luckily no real physical damage to me.  The finder was just about blown off.  On investigation, someone had installed a long bolt to attach the cable to the battery and the bolt had broken into the battery, when the bolt loosened a spark was made inside of the battery (in the Hydrogen) and boom.  That's a good reason to remove the ground cable first.  Have a lot more respect for batteries now!