PRECAUTIONS FOR HANDLING SEALED LEAD-ACID BATTERIES - CONTINUED
6. Maintenance WARNING
When cleaning the batteries, use a soft damp cloth. A dry cloth may cause static electricity which could result in a fire or explosion.
Replace batteries with the new ones before the end of their useful life as determined in the specifications. When the batteries near the end of their life (50% state of their initial discharge duration time) will shorten remarkably. Finally the batteries will lose their available capacity by either drying out their electrolyte (causing increase in their internal resistance) or an internal short-circuit. In such case, if the batteries go on charging, thermal runaway and/or leakage of electrolyte may occur. The batteries should be replaced before becoming in these state.
The expected life of the batteries(in trickle or float use)will decrease to half (50%) with each 10°C rise in temperature above 25°C. In particular, the life of the batteries will be shortened remarkably at approximately 40°C. Accordingly, precautions are required to prevent the use of batteries at high temperatures.
(1) Avoid using organic solvents such as thinner, gasoline, lamp oil or benzine and liquid detergent to clean the batteries. These substances may cause the battery containers to crack or leak.
(1) Keep the battery terminals clean in order to avoid interruption in the discharge and/or to maintain the charge.
7. Treatment at Emergency WARNING
(1) The batteries have toxic liquid - dilute sulfuric acid solution in them. If the acid comes into contact with skin or clothes, wash skin or cloth with lots of clean water to prevent scalding from occurring. If the acid should come into contact with the eyes, wash the eyes with lots of clean water and consult a physician immediately to prevent possible loss of sight.
(1) Check the batteries visually for any sign of irregularities in appearance. If any damage exists such as cracks, deformation, leakage of electrolyte, or corrosion, the batteries must be replaced with the new ones. Irregularities in the batteries could result in bodily injury, electrolyte leakage, excessive heat generation or explosion, if used. Furthermore, make sure the batteries are clean and free from dirt and dust.
Sealed Lead-Acid Handbook, Page 10