Figure 19.
Battery charge.
Figure 18.
Battery discharge.
13. BATTERY TESTING.
a. Since the amount of sulfuric acid in the electrolyte decreases as the
battery discharges, the specific gravity of the battery also decreases as the
battery's state of charge decreases. By using a testing hydrometer (fig 20) to
measure the gravity of the electrolyte, the battery's state of charge can be
determined.
OS 010, 3-P24
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