Installation and servicing of the 12V VRLA battery should only be performed and supervised by personnel knowledgeable of
lead acid batteries and required personal and equipment safety precautions. Keep unauthorized personnel away from the batteries and installation activity.
Electrical Hazards
Battery systems present a risk of electrical shock and high short circuit currents. The following precautions should be observed when installing and maintaining
VRLA batteries:
1. Remove all personal metal objects (watches and rings).
2. Use insulated tools.
3. Wear full eye protection and rubber gloves.
4. Observe circuit polarities.
5. Do not make or break live circuits.
6. Prior to handling batteries on a metal rack, assure the battery is not inadvertently grounded by measuring the voltage between the battery and the rack. It should be zero. If not, determine the cause and correct prior to proceeding.
Disposal
Lead acid batteries must be recycled. Batteries contain lead and dilute sulfuric acid. Dispose of in accordance with Federal, State and local regulations. Do not dispose of in a landfill, lake or other unauthorized location.
Chemical Hazards
Any gelled or liquid emissions from a VRLA battery is electrolyte which contains dilute sulfuric acid, which is harmful to the skin and eyes; is electrically conductive; and is corrosive.
If electrolyte contacts the skin, wash immediately and thoroughly. If electrolyte enters the eyes, wash thoroughly for 10 minutes with clean water or a special neutralizing eye wash solution and seek immediate medical attention.
Neutralize any spilled electrolyte with the special solutions contained in a spill kit or with a solution of 1 lb. bicarbonate of soda to 1 gallon of water.
Fire, Explosion and Heat Hazards
Lead acid batteries can contain an explosive mixture of hydrogen gas which can vent under overcharging conditions. Do not short circuit terminals. Do not smoke or introduce sparks in the vicinity of the battery.
Do not install and charge batteries in a sealed container. Mount the individual batteries with 0.5 inches of space between the batteries to allow for convection cooling. If contained, assure the container or cabinet and room have adequate ventilation to prevent an accumulation of potentially vented gas.
Refer to the current issue of the National Electric Code.
Caution
Do not attempt to remove the vents (valves) from the 12V VRLA battery or add water. This presents a safety hazard and voids the warranty.
The individual batteries may weigh from 25 to 180 pounds depending on part number. Exercise care when handling and moving batteries. Assure the use electrolyte which contains dilute sulfuric acid which is of appropriate handling equipment.
