How to eliminate the failure of solar lamps?

1, detect the solar street lamp controller, the controller is the core of the solar street lamp. If it is a yellow light, it means loss of power, can not normally light, at this time to detect the battery voltage of the solar street lamp, if the battery is normal, then replace the new controller to see if it is normal, such as normal is basically determined that the controller is broken. If the light is not on, check whether the wiring is off.

2, if the controller fault is eliminated, the next step is to detect whether the solar panel can be charged, usually can not charge the situation is mainly manifested as voltage without current. At this time, it is necessary to detect whether the panel joint is welded well, and whether the aluminum foil on the panel has current, if there is no current, it is basically concluded that the panel has been scrapped. If there is current on the solar panel, pay attention to whether there is snow cover and can not be charged.

3, the battery is also a link prone to failure. The batteries used by many manufacturers are not waterproof, which leads to short circuit of the positive and negative terminals after the battery is flooded, resulting in voltage instability. During the test, carefully observe the battery voltage changes with the depth of discharge. If the battery cannot be used normally, replace it with a new one.

4, finally check the line for damage. If the insulation layer is worn and the current is transmitted through the lamp pole, it will cause a short circuit and the lamp will not light up.