1. Lithium-ion battery activation method:
1.
Try 2x or 3x the voltage to reactivate it. Overvoltage refers to: the battery is generally 3.7-4.7V, you can use 6V, otherwise, you can use 9V.
All batteries and wires available, preferably monitored with a multimeter. If you have no experience related to maintenance, this is exempt. Connect the available batteries in series and charge the batteries with positive to positive and negative to negative wires.
2. Freezing method
If it cannot be loaded, wrap it in paper and then in a plastic bag. Place in the refrigerator for 1 week and take out for 2 days. Connect the device and if power may appear, charge it immediately until fully charged.
3. Wiping Method
For low battery life that is not a serious problem, use a wiper propre to gently wipe the metal contact surface between the battery and the device after a long time. During use, the metal surface of the battery will have a certain degree of oxidation, resulting in poor contact and reduced battery life. Using an eraser can erase the oxide layer on the surface to improve contact between the battery and the device.
How to repair a lithium battery that cannot be charged
If a lithium battery is broken, you can usually go to the store where you purchased the battery, and there will be after-sales repairs, or you can also go to a nearby electric vehicle repair shop.
If the lithium battery of an electric vehicle is broken, you can go to the sales site where you purchased the lithium battery to repair it. Especially during the periodwarranty, repairs on the sales site are possible. usually for free. If the warranty period has expired, you can go to the nearest repair shop and find a professional repairer to repair it. However, it should be noted that different repair shops will have floating suggestions on repair prices. Choose a reputable repair shop for repairs.
Before repairing, you must carefully diagnose the cause. If it is determined that there is a problem with the battery itself, you should choose to replace it rather than repair it. For lithium battery repair, you can choose an officially designated repair shop. It is generally recommended to use formal channels. You can also choose a regular third-party technical service provider, such as graphene repair workshop, to ensure the technical level and ppieces. quality and guarantee safety, reliability and reusability.
Lithium battery repair methods:
1. This method is actually better and simpler. Car owners can do it at home, which is to seal the lithium battery of the electric car with plastic film or the like, and then put it in the refrigerator or freezer at home, usually freezing it for 2 hours . 2-3 days, then take it out and leave it at room temperature for another two days, which will have a certain restorative effect on the lithium battery.
2. Activation method. The activation method is also relatively simple. You can find a charger with relatively low current to charge the lithium battery. After two hours of charging, return to the original charger and continue charging. This will have some activation effect on lithium. Battery goodOf course, it also has corresponding repair effects.
3. Use large to charge the lithium battery, find a charger with larger current than the original charger to charge the lithium battery for two hours, then switch to the original charger and continue charging until it is fully charged. Through this high current charging, the battery can be activated, which helps to increase the battery capacity and has a certain restorative effect on the battery.
Repair methods of electric bicycle lithium batteries
There are generally three methods to repair lithium batteries that cannot be charged, namely fast charging method and slow charging method. Charging method and parallel repair method.
It should be noted that if the lifespan of the lithium battery is reached (the lifespan of a lithium batterythium is usually around four years), it cannot be repaired. These three methods are. Applicable only to lithium batteries.
Fast charging method: Use a high-power charger or go to a fast charging station to charge the lithium battery. The quick charge time is checked at around two hours. Once the time is up, use a multimeter. to measure the voltage of the lithium battery. If the voltage is higher than before charging, this proves that recovery is successful. At this time, use the original charger to fully charge the lithium battery.
Slow charging method: The principle is almost the same as the fast charging method. Use a charger with lower power than the original charger to charge the lithium battery. If the original charger is 60V, use a 48V charger. Charge the lithium battery for half an hour beforeto use the original charger. There is some probability that the battery can be repaired.
Parallel repair method: Find a new battery with the same specifications as the lithium battery, and use wires to connect the old lithium battery and the new lithium battery in parallel. Discharge the old lithium battery. After a period of discharge, use a multimeter to measure the voltage of the old battery. An increase in voltage indicates that the old battery has been successfully repaired.
Precautions for charging lithium batteries
Avoid charging at too low temperatures. If you use lithium batteries in a low temperature environment, i.e. below 4°C, you will also find that the battery life is reduced. The original lithium batteries of some mobile phones cannot evenbe charged in low temperature environments. But don't worry too much, this is only a temporary situation. Unlike use in high temperature environments, once the temperature rises and the lithium-ion battery molecules are heated, they immediately return to their previous power.
Used often. Life is movement. If you want to maximize the performance of a lithium-ion battery, you need to use it frequently to keep the electrons in the lithium-ion battery flowing. If you do not use the lithium battery frequently, remember to cycle the lithium battery charge every month and perform power calibration, that is, deep discharge and a deep load.
Repair methods of electric bicycle lithium batteries: freezing method and activation method. 1. Freezing method This method is relatively simple. As long as there is a freezer or refrigerator at home, the lithium battery of the electric vehicle should be used. wrapped in plastic film. The class is sealed,Then put it directly in the freezer and store it. Generally speaking, it should be frozen for 2-3 days, then taken out and placed at room temperature for two days, which will have a certain restorative effect on the lithium battery. 2. Use the activation method This method is to find a charger with a current lower than that of the lithium battery to charge the lithium battery. Charging only takes about two hours. Then replace it with a matching charger and continue charging the lithium battery until it is full. This method can activate the battery and have a certain repair effect. Types of batteries au lithium 1. Ternary lithium battery Ternary lithium battery means that the cathode material is nickel-cobalt-manganese-lithium. oxide and negative electrode material graphene are used as negative electrode materials. Nernary materials are mainly used in new energy vehicles, electric vehicles, pneumatic tools, energy storage technology, intelligent sweeping robots, drones, intelligent wearable devices and other industries. 2. Lithium iron phosphate battery As the name suggests, lithium iron phosphate battery means that the material of the positive electrode is lithium iron phosphate as the material of the positive electrode and the material of the negative electrode. graphene is used as a negative electrode material. Lithium iron phosphate batteries are mainly used in energy vehiclesnews, energy storage batteries, etc. 3. Lithium cobalt oxide battery Lithium cobalt oxide battery means that the material of the positive electrode is lithium cobalt oxide and the Negative electrode material is graphene. Lithium cobalt oxide batteries have stable structure, high capacity ratio and outstanding overall performance. However, they have poor security and a very high cost. They are mainly used for small and medium-sized batteries and are widely used in small electronic devices such as laptops. , cell phones and MP3/4.