Electric car charger output current instability
1, the charger is not current output, it may be the battery box fuse blows, contact electrode damage the battery case or the battery connection open welding, etc., which should be dealt with one by one to check and.
2, if the charger output current instability, the battery circuit wiring have bad place. Should check the battery circuit wiring and connectors, so the battery circuit wiring and reliable.
3, single-arm charger rectifier circuit. Look for single-leg rectifier charger trip point, re-welding.

4, the charger has a filter circuit breaker, open welding, failure conditions. First check the capacitor is normal, if good, indicating the presence of open solder caused at open
5, charger voltage regulator circuit, the adjustment circuit in device failure will lead to the charger is not current output or output current unstable fault. Can first check charger voltage regulator circuit, the adjustment circuit in the device is normal color, gently shake the device to see whether there is loosening, and observe the back of the circuit board solder. Stepwise forward after charging voltage measuring points of each device and compare the measured voltage and normal to determine the fault of the device.