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Which advantage does conductance testing have over load testing?

  • A.It measures the capacity directly, which a load test is unable to do because it applies the load only briefly
  • B.Lower cost
  • C.It detects a faulty cell reliably, which a load test cannot do because the load is applied to the battery as a whole
  • D.It works on a partly discharged battery without heavy current

Answer: D

A conductance tester injects a small signal and infers plate condition, so it needs no heavy current and can test in situ. Neither method measures capacity directly. Cell faults show in both tests to some degree. Tracing the requirement back to the physical constraint that produces it makes the answer follow. Naming what changes and what stays the same is the reliable route through questions of this shape. A limit that survives making every external component ideal is an intrinsic one, and worth knowing for that reason.

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