1. The charger transformer is burned out. 2. The diode […]
1. The charger transformer is burned out.
2. The diode on the charger is burned out.
3. The charging current meter of the charger is damaged.
4. The fuse of the charger is burned out.
The way to troubleshoot is to disconnect the connection between the charger and the battery, and test the voltage between the two output terminals of the charger with the multimeter DC voltage (50V). Note that the red pen is connected to the positive pole of the charger, and the black test lead is connected to the negative pole. No voltage output was found. Remove the charger housing and inspect the charging fuse to find that the 60A fuse burned out. After the replacement, the charger resumes normal charging and the fault is eliminated.