1, check whether the charger has a fault, if there is a manufacturer to solve.
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2. After connecting the charger, there is no power output under the clamp meter.
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3. Check whether the charging terminal is loose and oxidized. Often encountered poor contact resulting in no electricity.
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4, whether the battery is placed for too long, no charging during the battery pack substrate vulcanization is serious.
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5. Use a multimeter to measure whether the voltage of the battery meets the standard voltage of the battery.
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6, check whether the connection of the charging circuit is reliable, check whether the connection and plug contact is intact, carefully check whether the socket and plug have a \"spark\" burning arc phenomenon, there is no line damage and broken line.
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7, check whether the charger is damaged, to see whether the battery inside the dry phenomenon, that is, the battery is serious lack of liquid.