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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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