![](../../../img/54/AC102027AB00ENG.png)
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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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