Battery Precautions
When working with batteries observe the following precautions:
1. Never use a booster/starter with a voltage rating above 12 volts to start engine.
2. Be sure the battery is properly connected--prior to starting engine.
3. Do not disconnect battery when engine is running.
4. Disconnect battery cables prior to charging battery.
5. Avoid creating sparks near battery--automotive batteries contain sulfuric acid and produce explosive hydrogen gas.