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The resistance of a battery provides useful information about its performance and detects hidden trouble spots. High resistance values are often the triggering point to replace an aging battery, and determining resistance is especially useful in checking...

Let’s examine the aging mechanism of batteries in terms of fading capacity and increasing internal resistance. Figure 1 shows a battery with high capacity and another that has aged. The capacity loss is illustrated with growing “rock content;” the rock...

Adding chemicals to the electrolyte of flooded lead acid batteries can reduce the buildup of lead sulfate on the plates and improve the overall battery performance. This treatment has been in use since the 1950s (and perhaps longer) and provides a temporary...

A lead acid battery goes through three life phases, called formatting, peak anddecline (Figure 1). In the formatting phase try to imagine sponge-like lead plates that are being exposed to a liquid. Exercising the plates allows absorbing more liquid, much...

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