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Identify battery

Compare the size of the battery capacity. The general nickel-cadmium battery is 500mAh or 600mAh, and the hydrogen-nickel battery is only 800-900mAh. The capacity of the lithium-ion mobile phone battery is generally between 1300-1400mAh, so the time for the lithium battery to be fully charged is about the hydrogen-nickel battery. 1.5 times, about 3.0 times that of cadmium-nickel batteries. If you find that the working hours of the lithium-ion mobile phone battery block you purchased are not advertised or as long as specified in the manual, it may be counterfeit.