When Lead-acid batteries are built with a number of individual cells containing layers of
lead plates immersed in sulphuric acid. When the sulphuric acid comes into contact with
the lead plate, energy is produced. The battery will have a negative and a positive
terminal on the top or side of the battery, and will have vent caps
on top. The purpose of the vent caps is to allow for the escape of
gases formed when the battery is charging. In addition, the
vent caps allow water and acid levels of the battery to be checked
during maintenance.
Lead-acid batteries can produce explosive mixtures of hydrogen and oxygen gases when they are being
charged. If ventilation is poor, the escaping hydrogen creates an explosive atmosphere around the
battery. All ignition sources, such as sparks, flames, burning cigarettes, and other sources of ignition,
shall be kept away from the battery recharging area because the gas can be ignited. The result of an
explosion could be severe burns and/or fire.
General Safety when Working with Batteries
When working with batteries it is very important to know where the deluge showers and emergency
eyewash stations are located. In addition, knowing proper first aid treatment for dealing with acid
splashes is also essential. Acid neutralizing bottles can be purchased from local first aid companies,
which can be used to allow you to reach the deluge shower or eye wash.
BATTERY SAFETY
WSPS.CA
