Battery conductance

Battery conductance is a measure of how readily current will flow through a battery’s internal electrical paths such as electrodes, electrolyte and connectors. The magnitude of the conductance can often be directly related to typical battery performance parameters.

Battery conductance is a convenient and rapid measurement made by assessing the AC voltage reaction to a non-intrusive, momentary AC current signal forced through the battery. Conductance, together with other battery measurements such as voltage and temperature, can therefore give an assessment of battery performance without the need of subjecting the battery to substantial discharge currents.

Battery conductance follows battery performance as it degrades through the corrosion of current paths and the deterioration of its internal electrodes. Thus, without running extreme discharge tests, the change in conductance can be used to predict battery health and imminent failure.
 
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