Battery Maintenance

1.  Daily Maintenance

(a) Battery shall be charged immediately after discharge each time. 

(b) Discharge each time shall not exceed 80% of the total battery capacity. 

(c) Battery must be wiped up if any acidic liquid is overspilled, to avoid battery electric leakage.

2. Weekly Maintenance

(a) If battery is not equipped with automatic liquid adding system, it is required to examine the height of electrolyte after charge. When it is lower than the allowable liquid level (separator height or specified height), it is required to add qualified distilled water to the specified height. When electrolyte is excessive, it shall be extracted to the specified height. 

(b) Examine whether or not water is accumulated inside the battery container, and the accumulated water must be sucked up immediately if it is found. 

3.  Monthly Maintenance

(a) Before charge is completed, examine the voltages of all the electrode units and the battery, and keep records.

(b) After charge is completed, it is required to measure the density and temperature of each battery unit, and keep records. If huge difference from the previous measurement value is found, professional shall be invited for examination.

4. Annual Maintenance

(a) Professional shall examine the insulation resistance of forklift truck and the insulation resistance of battery once a year. The insulation resistance for battery is specified as 50Ω/V. The resistance to the entire battery (voltage to reach 20V) is 1000Ω.

(b) Examine the charger once according to the instruction manual, to ensure that respective functions are under normal conditions.

General Notices

(1) Battery shall be maintained clean and dry, able to avoid generation of creeping current.

(2) Liquid must be sucked out immediately using suction pipe, if any in battery container.

(3) Damage of inside/outside paint or coating of battery shall be mended immediately, if any is found, and the outside container insulation shall be protected, free from corrosion.

(4) Replacement of battery unit shall be carried out by professional.