When choosing a battery for replacement, it must be of the same performance level as the current battery mounted in the vehicle and have positive and negative terminals at the same locations as terminals on the mounted battery.
When the terminal positions different, cables to the vehicle will become abnormally loaded and damaged. The battery type is indicated on the top (lid) of the battery. When two batteries are mounted in the vehicle, replace the batteries with a pair of batteries of the same type and similar history. If ignored, there is a risk of battery explosion.

Side Vent Type

    Even if the battery is not used, check once a month whether “Replacement Required” is shown in the indicator, indicated in red. Do not use the battery when “Replacement Required” is shown in the indicator. Replace the battery immediately if “Replacement Required” is shown in the indicator.
  2. Indicator check and action to be taken
    Good: The battery electrolyte ration and fluid level are both acceptable. The battery can used as is. Charge required: The battery electrolyte ration is low. Recharge the battery according to the recharging battery. When the battery cannot be restored to its normal state by this action, replacement is recommended. Replacement required: The battery electrolyte is insufficient. Replace the battery immediately.

Do not add water removing the indicator.


Vent Plug Type

  1. Inspecting the level from the side of the battery
    Use a piece of cloth moistened with water to clean the area around the level line, and then make sure that the level line is between the UPPER LEVEL marking (highest level limit) and LOWER LEVEL marking (lowest level limit). Cleaning this area with dray cloth will generate electricity, possibly resulting in an ignited explosion. When the level line is midway or lower than midway between the UPPER LOWER and LOWER LEVEL markings, loose and detach the vent plug. Then refill the battery with distilled water (such as commercially available battery water) up to the UPPER LEVEL marking. After refilling, firmly secure the vent plug.
  2. If the electrolyte level cannot be checked from the side of the battery or the UPPER LEVEL marking cannot be seen from the side, detach the vent plug from the top of the battery, and then look into the inlet to check the level. If the level does not reach this sleeve, be sure to refill the battery with distilled water (such as commercially available battery water) up to the bottom of the sleeve.


*Useful tips
Should you accidentally refill the battery above the UPPER LEVEL marking of the sleeve bottom use a pipette or something similar to remove excess liquid to obtain a level reaching the UPPER LEVEL marking or sleeve bottom. Use baking soda (sodium bicarbonate) or something similar to neutralize the removed liquid, and then use plenty of water to wash it away. Otherwise, consult the battery manufacturer for more information.



Battery life is finite. To safety use the battery, be sure to stop the engine of the vehicle and remove the engine key. Inspect the fluid level of the battery every day and check the fluid level via the indicator at least once a month.
  • When charging the battery with a charger, use the charger correctly according to the procedure shown in the instruction manual that comes standard with the charger. Incorrect handling of the charger may cause an explosion.
  • When charging the battery, do it in a well-ventilated place, distant from fire. When “Replacement Required” is shown in the indicator, do not charge the battery and immediately replace with a new battery. If ignored, there is a risk of battery explosion.
  • Do not connect the charge clip to the battery while the charger power switch is ON. If ignored, spark may occur causing an explosion.
  • Do not remove the charge clip while the battery is being charged. If ignored, there is a risk of a battery explosion.
  • When the charger has been provided with a voltage changeover switch, set the switch corresponding to the target voltage of the battery to be charged. Incorrect setting of the voltage may cause the charger to become overheated or catch on fire or the battery to be subject to an explosion.
  • Electrical energy may remain in a used battery. Do not short-circuit the positive and negative terminals of the battery or do not place it near a fire. If ignored, there is a risk of an explosion or fire due to a spark.
  • Store the used battery in a location away from children’s reach. If electrolyte solution comes into contact with eyes, there is a risk or loss of eyesight.
  • Do not store the used battery in a wrong direction. If ignored, there is a risk of electrolyte solution leakage causing corrosion pollution of surroundings or electrical leakage causing a fire.
  • Do not discard a used battery as a waste, contact your battery dealer or further information.