Battery maintenance

Maintenance personnel must always wear the necessary safety equipment, such as helmets, overalls, labor protection

boots, gloves, ear protection, goggles, and other necessary labor protection equipment.

Always disconnect the negative (-) pole first and then the positive (+) pole. When reconnecting, always connect the positive (+) pole first, then the positive (+) pole.

（When reconnecting, always connect the positive (+) pole first and then the negative (-) pole.

● Reversing the polarity of the battery, sudden rupture of the battery case due to sudden discharge of electrolyte from the air vent or explosion of hydrogen inside the battery, or both.

Reversing the polarity of the battery can cause injury if the electrolyte is suddenly discharged from the vent port or if the battery case suddenly ruptures due to an explosion of hydrogen gas inside the battery, or both.

● To prevent sparking when connecting the battery charger, disconnect the charging cable from the charger before connecting it to the battery terminals.

To prevent sparking when connecting the battery charger, unplug the charging cable or turn off the charger switch before connecting the charging cable to the battery terminals. Open the battery cover slightly during charging to allow for the generation of gas.

Open the cap of the battery slightly during charging to allow the generated gas to escape.

The acid in the battery can burn skin, make holes in clothing, and cause blindness if splashed in the eyes. If any of the acid in the battery is splashed on your skin, it can cause blindness.

If any battery acid splashes on your skin, rinse immediately with water. If splashed in the eyes, flush with plenty of water first, then see a doctor.

Seek medical advice.

When caring for batteries, remember that lead-acid batteries (during charging and discharging) produce oxygen and hydrogen, which can form highly explosive gases.

During charging and discharging, lead-acid batteries can produce oxygen and hydrogen, which can form a highly explosive gas mixture that can explode with a spark or open flame.

Therefore, if necessary, the battery room should be properly ventilated before disconnecting or connecting electrical cables.

● To prevent an explosion, check the electrolyte level regularly and keep it high. If necessary, add distilled water before starting the engine.

Add distilled water before starting the engine when needed, never immediately after use. If the electrolyte level is high enough, the battery will not work if there is gas in the battery.

If the electrolyte level is high enough, there is little room for gas to remain in the battery.

● When checking the electrolyte level, use a flashlight and do not use an open flame.

● Never short-circuit the battery terminals, as the sparks generated can cause the battery to explode.

● Do not test the electrical equipment by contacting the battery terminals.

● Always apply contact grease to the battery terminals.