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1.Check that the battery electrolyte level is between the UPPER LEVEL and LOWER LEVEL indications. 2.Use a specific gravity meter and a thermometer to measure the specific gravity. Standard value: 1.220 -
1.290 (electrolyte temperature 20°C) The specific gravity of the battery electrolyte changes according to the temperature, so the specific gravity when the electrolyte is at a temperature of 20°C can be calculated using the following formula. Use the converted value to judge whether the electrolyte is okay or not. D20 = (t -
20) ×
0.0007 +
Dt D20: Specific gravity converted to a value for electrolyte temperature of 20°C t: Electrolyte temperature at the time of measurement Dt: Actual specific gravity
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