How to repair the battery of an electric car

1) The electric vehicle journey begins to shorten (or the battery capacity is not less than 70%), indicating that the battery has begun to lose water and vulcanize, and you should add water or add a small coppersmith nano carbon sol battery activator. (2) The travel distance of the electric vehicle is shortened by less than half (or the battery capacity is not less than 50%), indicating that the battery plate is severely vulcanized and slightly softened. Various battery repair fluids should be added immediately. (3) The stroke of the electric vehicle is shortened by more than half (or the battery capacity is less than 50%), indicating that the battery plate is vulcanized and softened seriously. The effect of adding various battery repair fluids is not obvious, and the battery reconfiguration method is required. A: Select the drum battery and replace it with the old one. The load voltage of the replaced battery is 11.4V12.7V, and the terminal voltage is about 13.2V. B: Drive the battery car until it can’t run, set up the battery car to run idling, measure the voltage of each battery with a universal meter, select the battery with the lowest voltage, replace the old with the old, and the load voltage of the battery is 11.4V12.7V, terminal voltage Around 13.2V. (4) The electric vehicle travel distance is shortened by more than 3/4 (or the battery capacity is less than 30%, the battery shape is bulging, and the battery leaks), and the repair is abandoned and discarded. Troubleshooting (1) Imbalance repair method: find out the batteries with the same capacity, voltage, self-discharge, battery internal resistance, etc. and use them together. (2) Repair method for water loss: pry open the cover plate above the battery, open the rubber cap to expose the vent hole, you can see the inside of the battery through the vent hole, and see if there is any dryness inside the small hole, that is, whether the battery loses water. The plates of the battery are wrapped with white glass fiber cotton, which should be moist under normal conditions. Use a dropper to suck distilled water into the battery through the vent hole. Cover the vent hole with the water-filled battery with a breathable shield to prevent dust from falling into the vent hole. It is best to use medical double distilled water. The principle of hydrating is to take less and not more. If it is not enough, it can be added. If it is too much, the proportion of acid will decrease, and the battery capacity will be insufficient. Special reminder: Use glass or plastic straws for water replenishment tools. It is recommended to use a medical disposable syringe, which is convenient to use and convenient to measure. Do not use any metal-containing equipment as the water replenishment tool. The metal needle of the syringe should be removed and a plastic tube should be used before use. (3) Sulfation repair method: repair the vulcanized battery with a Kedi repairer, using fuzzy digital control theory, and by measuring the battery status, it will continuously emit positive and negative variable frequency particle waves while charging and discharging, and it will take 10 to 20 hours Time to remove the hard lead sulfate from the battery after crystallization. (4) Plate softening repair method: After the battery is discharged to 10.5V, use a bulb to discharge it for 1-5 hours. Then use the activation instrument to activate the repair. (5) Short-circuit repair method: water batteries can be drilled clearly to remove the short-circuited lead powder! Electric vehicle batteries can quickly short-circuit the positive and negative electrodes, and burn the short-circuited place! (6) Open circuit repair method: 100A test battery voltage 0V is open circuit, use a single measurement method, use a multimeter to measure the open circuit, and weld it. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the principle of the iron-lithium battery protection board