FLUID LEVEL AND SPECIFIC GRAVITY CHECK


caution
  • If the battery is used with the electrolyte level below the LOWER LEVEL indicator, there is the danger that explosions may occur, so add water to the battery until the electrolyte level is between the LOWER LEVEL and UPPER LEVEL indications.
  • If too much water is added to make the level rise above the UPPER LEVEL indication, the electrolyte may leak out, so adjust so that the electrolyte level is between the LOWER LEVEL and UPPER LEVEL indications.

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