1. Surge method. Try 2x or 3x voltage, it can be reactivated. 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 recharged, wrap it in paper or 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. Regarding the discharged battery which is not a serious problem, use a clean eraser to gently wipe the surface of the battery.e metallic contact between the battery and the device. After long-term use, the metal surface of the battery will have a certain degree of oxidation, resulting in. poor contact and shortened battery life, and using an eraser can erase the oxide layer on the surface to improve the contact between the battery and the equipment.
How to reactivate a lithium battery?
How to restore lithium battery after power outage?
1. Low voltage charging method
In this case, you can use a relatively small charger. to charge the battery. For example, if the battery is 60V-20Ah, you can use a 48V-20Ah charger to charge it. After two hours of charging, the voltage will increase significantly. At this point, switch to a 60V-20AH charger for charging.
2. Special charger
The most experienced repairers generally prepare chargers dorepair function tees. This type of charger is mainly used to charge the battery. It can charge the battery regardless of the battery voltage, and the power failure repair rate is generally relatively high.
3. Charging a single battery
In order to maximize the probability of battery activation, each battery in the battery pack can be charged with a 12V charger. However, as the battery often remains too long, you should pay attention to make the charging time longer than usual, in order to achieve satisfactory results.
4. Simple batteries connected in parallel
An ordinary battery with saturated power can be directly connected to a battery that lacks power according to the method of connecting the positive electrode to the positive electrode and the negative electrode to the negative electrode. All defective batteries in the group canwork the same way one after the other.
5. Connect the whole battery in parallel
According to the same principle, connect the two sets of batteries in series to a battery with the same voltage and saturated power, then Connect the total of the positive and negative poles of the two sets respectively of batteries. Connect and operate using the “battery charging” method. One thing to note is that the rated capacity of the normal battery selected is better than the rated capacity of the exhausted battery.
The simplest method to reactivate a lithium battery is as follows:
1 The lithium battery is completely “starved” and suffers from serious problems. loss of power. Generally speaking, lithium batteries lose more power due to over-discharging. For example, electric vehicles last a long time. Leaving it without regular charging will causehas the “starvation death” of the lithium battery.
At this point, you can use a high voltage charger to charge the electric vehicle to activate the battery. For example, if you want to activate a 48 volt lithium battery, you can find a 60 or 72 volt battery charger to charge it, then charge it for 20 minutes and then replace it with the original charger.
2. The lithium battery still has some energy and the headlights can be turned on. At this time, another method can be used to activate it. The method is relatively simple, that is, turn on the headlights of the electric vehicle, then connect it to the original charger to charge it. If the charger light changes from green to red, it means the lithium battery has been charged. charge for a few hours. Finally, the lithium battery is ready for use.
3. You can connect the exhausted lithium batteries in parallel, finder a battery of the same model as the original battery and connect the two with a wire for charging. If there is a device to detect voltage, you can use it to test and see if it has any effect. If you cannot activate the lithium battery after trying several methods, you can only solve the problem of not being able to charge by replacing the battery.
Notes on using lithium batteries:
1 When riding in rain or snow, it There is a gap between the battery and the electric bike. The discharge plug part should not come into contact with water. When not in use, turn off the battery power switch to avoid the consequences of a short circuit. And try to avoid using electric vehicles in harsh environments. Pay attention to the tightness of the battery pack.
2. The battery must beplaced away from water and fire sources, kept dry and avoid strong shaking, impact and short circuit. In summer, batteries should be stored away from direct sunlight.
Special reminder: Do not unpack, modify or damage the battery without authorization; it is strictly prohibited to use this battery on other brands or models of electric vehicles; prevent foreign objects from short-circuiting the load and; discharge ports when in use.