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After the device is connected, the charging speed is extremely slow or unable to charge


1. Check if the output voltage and current of the adapter are stable. If they are unstable, it may be due to aging or decreased performance of internal circuit components, and need to be repaired or replaced.
2. Check if the charging interface is loose or has poor contact. If there are any problems, re plug or clean the metal contacts at the interface.
3. It may be due to a malfunction in the device's battery management system. You can try restarting the device or connecting another normal power adapter for testing.