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General Safety Information

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General Safety Information

ERDIL batteries are safe for use by proper handling and operating and do not represent any danger or harm for the operators and environment. For safety handlings take in to account all safety and maintenance instruction.

Like all other flooded, lead-acid batteries, ERDIL batteries may leak, release hydrogen gas or cause acid misting. Always follow the generally accepted safety procedures for handling batteries. In addition, it is vitally important that you observe the precautions recommended in this manual.
Electrolyte – Diluted Sulfuric Acid
ERDIL batteries are safe when operated and handled properly. However, some of our models do contain sulfuric acid, which can cause burns and other serious injuries. Always wear protective clothing.
Because battery is filed with acid it always exits risk of acid spilling through air vent system.
Battery shall never be inclined or turned around for angle greater than 45degree.
Sulfuric Acid Burns
In case of contact with skin or cloth, immediately:

  • remove contaminated clothing
  • flush the area thoroughly with water
  • get medical attention, if required

In case of eye contact with sulfuric acid, immediately

  • flush thoroughly few minutes with large amounts of water
  •  get medical attention.

Explosive Gases and Fire
Batteries generate explosive gases in all stages of batteries operation which, when released, can explode, causing blindness and other serious personal injury. Consider following:

  • always wear protective clothing and use the correct safety tools
  • eliminate any potential of sparks, flames or arcing
  • provide adequate ventilation of batteries room


Inspection upon delivery
Immediately upon delivery check quantities and note any damage to packing, wetness or stains indicating electrolyte leakage.
Store batteries indoors in a clean, dry and cool location with ambient temperature from 5 to 30 C.
Storage at higher temperatures will result in accelerated rates of self-discharge and possible deterioration of batteries performance and life.
Do not stack pallets to prevent damage.
Batteries should be installed as soon as possible. See following tables below for recommended store time.
Batteries should be stored according to FIFO system.
Do not store the batteries for a longer time as it is recommended for (Ca/Ca, Sb/Ca).
FIFO system should be implemented.


  • When installing a battery check that air vent with flame arrestors are not covered.
  • The battery shall be properly connected. The positive connector to the positive pole and negative connector to negative pole.
  • The battery shall always be kept clean and dry. Metal parts (connectors) should be coated with a thin layer of acid-free petroleum jelly or other suitable protection against corrosion.
  • Avoid causing sparks when connecting the battery clips. This can cause irreparable disruption on the electric circuit and increase the danger of explosion.
  • For trouble-free operation of the battery it is recommended periodical inspection at a qualified automotive shop. The proper voltage level of a charging system during driving is 14,2 – 14,4 V.
  • Do not handle metal items close to the battery terminals. Short circuits can cause permanent damage and increase the danger of explosion and acid leakage.
  • A discharge d battery shall be recharged within two days at a list. Otherwise irreparable damage will appear. The electrolyte of a discharged battery freezes at 0 C and freezing causes irreparable physical damage to the battery.
  • In the case of detecting low acid level always fill up the cells with deionized water. Never fill with acid.
  • If recharging is necessary charge the battery in a ventilated room.


  •  Uninstall the battery from the vehicle, first disconnect the negative pole.
  • Switch the charger off, disconnect charger plug.
  • Connect the battery to the charger the positive connector to the positive pole and negative connector to negative pole, unscrew the plugs and reconnect plug and switch charger on.
  • At the beginning set the strength of the charge current to 1/10 of the switch charger on. After that set the charge current to 1/10 of the twenty-hour capacity C20 (e.g. a 100 Ah battery is charged at 100 Ah/10 or 10 A). Charging lasts 10 to 14 hours, depending on the level of discharge capacity of the battery. After battery is fully charged turn off the charger and disconnect the battery.
  • The charging room shall be properly ventilated.
  • The electrolyte temperature should not exceed 55 „aC. If it is necessary interrupt the charging to cool the battery.
  • After battery is charged return the plugs, clean and dry the surface of battery.
  • Before reinstalling the battery in the vehicle switch off all the electrical consumer due to the possibility of sparking on the terminals during connecting and possible danger of explosion.
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