Data Mining Algorithms on Electrical Power Systems

Only 0.4 volts difference between a fully charged 12.6volts and a 50% 12.2 volts discharged battery. Only 0.9 volts difference between full charge 12.6volts and full discharge 11.7 Battery has to be at rest 24 hours (no charge or discharge) before accurate specific gravity can be measured. ................
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