There may be a problem that needs to be checked.
< br >
If the tricycle is not charged, the charger shows a red light for the following reasons:
< br >
1, the charger converter is damaged, can not be converted and charged, replace the charger resistor.
< br >
2, battery welding, check with a multimeter.
< br >
3, the charger insurance burned out, replace the charger.
< br >
4, power cord and battery socket fall off, poor contact, check and replace.
< br >
How to protect electric car charger:
< br >
1. Add 15ML pure water to the battery, charge it with a 4 amp current, charge it until the current drops to 1 amp, park it for 2 hours, measure the voltage of each battery is 13.3, if a certain battery is not charged, reach it. Then string the batteries together, and you're done. When the power is found to be less than 30% during use, it should be charged in time. Long-term deep discharge (riding to the system forced power off) or too shallow discharge (riding only 1~2Km) will affect battery performance. Battery performance is best when the battery power is used up to 70%.
< br >
2, it is best to charge the battery in a cool, ventilated and dry place. Direct sunlight or rain can have a bad effect on the performance of the battery and charger. When charging, keep the battery and charger away from other heating sources.
< br >
3, after the battery is used up, it should be fully charged in time, and the green light of the charger means that it is full. A long period of undercharge storage or use of the battery before it is fully charged will affect the performance of the battery, especially if the battery is used 3 hours after the charger is green.
< br >
4, Connect the battery before charging, and then plug in the mains. After charging, unplug the mains first, and then put the battery end. If you do not follow these steps, a spark may occur when the battery is connected. The hydrogen generated in the power box may explode. In addition, the charger must be disconnected from the mains after charging.
The reason why the electric tricycle charging has been showing a red light: the charger has a problem, the battery has a water loss problem, and the battery pack has a short circuit fault. 1. If there is a problem with the electric car charger, it is usually manifested as the internal electronic devices falling or destroying, which will cause the charger to not normally jump the light, and even cannot be charged, causing the charger to always show a red light. In that case, you can only decide to replace the new charger.
2. If the battery loses water, it is necessary to add a little liquid to the battery moderately, and it must be added by professional maintenance personnel, because the battery liquid will more or less interfere with the battery performance.
3. If a small battery in the battery pack shorts out, the electric vehicle cannot run normally when charging, resulting in the charger showing a red light all the time. For such a case, the user can first test the voltage of each small battery with a multimeter, and the battery with the lowest voltage display is the battery with a short circuit fault. In this case, it is usually necessary to reconfigure the battery and replace it with a new battery.