Which test is most accurate in determining the condition of a battery?

A. Hydrometer
B. Open circuit voltage (OCV)
C. Voltage drop
D. Load or capacity



Answer :

Final answer:

Battery testers utilize small load resistors to measure internal resistance and assess the battery's condition based on terminal voltage.


Explanation:

Battery testers, like those shown in the figures, use small load resistors to intentionally draw current and assess whether the terminal voltage drops below an acceptable level. These testers are valuable tools for determining a battery's condition by measuring internal resistance. Higher internal resistance indicates a weaker battery with lower terminal voltage.


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