Production of electric charger use and troubleshooting, how to use electric car charger! How long does it take to charge the battery car? The correct charge time is to wait for the green light, then float for an hour, then cut the power. Electric car chargers have no overcharge protection, and although the green light is on, the battery is still charging and decomposing, and the water in the battery evaporates because it can’t be turned off. What’s the harm in taking too long a break? Electric vehicle charging should mainly grasp two principles: one is shallow charging. Second of all, we can’t overcharge. Too Long charging time will consume too much water in the battery, accelerate the solidification process of the plate, so that the capacity of the battery gradually decreased due to lack of water, until the battery charging drum, scrap. Are Electric Car chargers universal? Electric car chargers are not universal in theory, but they are based on the same voltage and current. Many users think they can just plug in and leave the lights on. In fact, they can be easily used to recharge batteries. Figure 2. Electric car charger failure repair, POWER DOES NOT START: Plug in the power supply, the big capacitor has 300v voltage, pull out the power, and then measure the big capacitor 2 or 300v voltage does not fall. After the capacitor is discharged, the starting resistance can be replaced. Power input starting resistance, resistance value 150K, power 2W.Start Difficult: sometimes can play sometimes can not start, repair welding circuit board, after the test machine, if still please input part of small capacitance replacement try again, 50v47uf. Electric Car chargers are always green: There are four boxes. Charger damaged, can not be converted and charged, replace the charger resistance; Battery Open Welding, check the multimeter; Charger Insurance Burn, replace the charger; Power Cord and Battery Plug closed, bad contact, check the replacement. Electric Car chargers have Red Lights: This is what causes battery polarization and battery water loss. We can fix it in time. The idea is to add 15 ml of pure water to the battery and charge it with a current of 4 amps until the current drops to 1 amp, then hold it at 2 ml, measuring a voltage of 13.3 per battery. If one of the batteries fails to charge, charge to 1 amp. Then string the batteries together, and you’re good to go. High output voltage: power on, voltage higher than 70V, charging without lights, circuit board repair welding, try again, if still high voltage, please replace photoelectric coupler, try again, still high output, replace 431 reference regulator, try again. The failure was caused by damage to the output stages R31 and C17. In addition, C12 Open circuit or virtual welding can also lead to failure. Output Voltage: The Circuit Board will be welded again, through the testing machine, and then will be 63v470uf capacitor output capacitance replacement testing machine.Unlit charging: test each data with a detector, then replace 358 or 324 with a new test machine. , the output voltage is normal, but the charging current is very small: Check R30, R11, R13 is not bad contact or damage, if normal please replace IC1 can be troubleshooting. Electrify burn insurance: first try the power supply tube does not have the breakdown, if not, will 4 rectifier diode replace completely, try the machine. No power output: test the power of the testing machine, large capacity 2-terminal 300V voltage, and slow down the speed, first test the output diode breakdown, repair welding, and then try again. Turn on the Light 2 Red Light: turn on the Tester, no-load voltage is normal, then 358 or 324 will be replaced with a new tester. No output power: can start normally, the indicator is normal, the first output circuit will be replaced by relay direct short circuit relay tester. About Lightning: Please repair the welding transformer pin, then test the machine, if still, please check the 431, photoelectric coupler, output part of the diode short circuit, whether the transformer core is loose, power input part 10 euros small resistance is disconnected. Or replace the 3842 and try again. No lamp charging: First test data with the Tester, general charging when the new battery voltage is not higher than 59.5 V, charging for half a year or so battery voltage is not higher than 58.8 V, under normal circances, the voltage above the lamp shall not be turned on. Low Output Voltage: Repair Welding Circuit Board. The Tester then replaces the tester with large capacitors for input and output. Output low, hot side: If the output voltage is less than 40 volts, and the power tube, transformer heating, generally there will be transformer failure. Screaming, heating, insufficient charge: Power Measurement capacitance voltage is large, as long as less than 300V, the general capacitor fault can be replaced.