The most critical storage conditions for lithium batteries are temperature and humidity. Generally, room temperature has little effect on the state of lithium batteries, but it cannot be exposed to direct sunlight. High temperature can easily cause the model lithium battery to swell or explode. Therefore, the model lithium battery is generally stored in Keep it in a tin or plastic box that is protected from light and air.
When the lithium battery is discharged at full power, the minimum temperature is generally about 15°C. When the temperature is low, the maximum discharge current will decrease and the power will be attenuated. Let's take a look at the related content.
How to treat lithium batteries correctly in winter?
1. Do not use lithium batteries in low temperature environments
Temperature has a great influence on lithium batteries. The lower the temperature, the lower the activity of lithium batteries, which directly leads to a significant decrease in charge and discharge efficiency. Generally speaking, the operating temperature of lithium batteries is between -20 degrees and -60 degrees.
When the temperature is lower than 0℃, be careful not to charge outdoors, you can`t charge it even if you charge it, we can take the battery to charge indoors (note, be sure to stay away from flammable materials!!!), when the temperature is lower than -20 ℃, the battery will automatically enter the dormant state and cannot be used normally. Therefore, the north is especially the users in cold places.
If there is really no indoor charging condition, make full use of the residual heat when the battery is discharged, and charge it in the sun immediately after parking to increase the charging capacity and avoid lithium evolution.
Lithium battery activity decreases in winter, which is very easy to cause overdischarge and overcharge, which will affect the service life of the battery and cause a burning accident in the worst case. Therefore, in winter, we must pay more attention to charging with shallow discharge and shallow charging. In particular, it should be pointed out that do not park the vehicle for a long time by inserting the gun all the time to avoid overcharging.
3. Don't stay away when charging, remember not to charge for a long time
Don't leave the vehicle in a charging state for a long time for the sake of convenience, just pull it out when it is fully charged. In winter, the charging environment should not be lower than 0℃, and when charging, don't leave too far to prevent emergencies and deal with it in time.
4. Use a special charger for lithium batteries when charging
The market is flooded with a large number of inferior chargers. Using inferior chargers can damage the battery and even cause a fire. Don't be greedy to buy cheap products without guarantees, and don't use lead-acid battery chargers; if your charger cannot be used normally, stop using it immediately, and don't lose sight of it.
5. Pay attention to the battery life and replace it with a new one in time
Lithium batteries have a life span. Different specifications and models have different battery life. In addition to improper daily use, the battery life span varies from several months to three years. If the car is powered off or has an abnormally short battery life, please contact us in time Lithium battery maintenance personnel handle it.
6. Leave surplus electricity to survive the winter
In order to use the vehicle normally in the next spring, if the battery is not used for a long time, remember to charge 50% to 80% of the battery, and remove it from the vehicle for storage, and charge it regularly, about once a month. Note: The battery must be stored in a dry environment.
7. Place the battery correctly
Do not immerse the battery in water or make the battery damp; do not stack the battery more than 7 layers, or turn the battery upside down
The above points are the tips for winter maintenance of lithium batteries for electric vehicles, which Xiaoxi briefly introduced for everyone. Of course, there are many knowledge points about lithium batteries.
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