Final answer:
Based on the provided specific gravity readings, which are all towards the lower end of the normal range for a lead-acid battery, the recommended action is to recharge the battery and then retest. If the readings do not improve, further testing or replacement may be necessary.
Step-by-step explanation:
The specific gravity readings from the six cells of a battery at 80 degrees F are as follows: Cell 1: 1.200, Cell 2: 1.210, Cell 3: 1.190, Cell 4: 1.200, Cell 5: 1.205, Cell 6: 1.200. These readings reflect the state of charge of each cell within the battery. A lead-acid battery's cells have a specific gravity that generally falls between 1.190 and 1.295 depending on the state of charge, with higher readings indicating a higher state of charge. Considering that all cells are close to the lower end of this range, it suggests that the battery is discharged or nearing discharge.
In this scenario, the best course of action would be to recharge the battery. Once recharged, all cells should reflect a specific gravity closer to the fully charged end of the spectrum assuming there are no other underlying issues with the battery. If after recharging the battery the specific gravity readings do not increase accordingly, or if some cells are significantly out of range with others, further testing or replacement might be needed. However, the given readings do not automatically suggest the battery needs to be replaced or that fresh electrolyte needs to be added at this time.