Battery Charging - A Multitude Of Hazards! Explosive hydrogen….Acidic liquids and vapors….Electrical burns….Strains, sprains, hernias and compressed discs. All of these hazards arise when servicing, charging, or jumping the common lead-acid battery found in cars and trucks. The hazards can be minimized by following a few common sense safety rules. Eye Protection: First, always wear safety goggles or a face shield when working around a battery. Batteries contain corrosive acids that are capable of eating away metals. It takes just one droplet to cause serious eye damage. Just popping open the vent cap may throw out a droplet. A short or faulty...