The correct answer is D. All above.
The specific gravity of electrolyte is a measure of its density. The higher the specific gravity, the more dense the electrolyte is. When the specific gravity of electrolyte becomes more than 1.23, it can cause a number of problems, including:
- Loss of capacity: The battery will not be able to hold as much charge, which will reduce its capacity.
- Loss of life: The battery will not last as long, as the increased density of the electrolyte will cause it to wear down more quickly.
- Corrosion of the grids of the plate: The increased density of the electrolyte will also cause the grids of the plate to corrode, which can lead to a number of problems, including a loss of capacity and a shorter lifespan.
It is important to keep the specific gravity of electrolyte within the recommended range to ensure that your battery is functioning properly. If you suspect that the specific gravity of your battery is too high, you should have it checked by a qualified technician.