With the onset of the cold wave across the country, many provinces and cities in our country have now entered cold weather. It can be found from the recent weather forecast that the temperature in many areas has plummeted, directly entering subzero temperatures. This has a serious impact on our daily work and life travel.
Especially when traveling on electric bikes, many users have reported in the background recently that their electric bikes can’t be ridden far. It used to be that when fully charged, they could ride one round trip to and from get off work, but now they can’t ride that far, so they can only carry the charger with them. Just recharge it.
In fact, many people ask this question every year. Every winter, I believe that most friends who travel by electric vehicles will encounter this situation. So what is the reason?
Because temperature will affect battery performance. We all know that whether an electric car can run far depends mainly on the battery. However, batteries have environmental requirements. Generally, the ideal discharge temperature of ordinary batteries is around 25°C. If the outside temperature is low, battery performance will be affected.
According to testing, when the external temperature of the battery reaches 0°C, the internal capacity is equivalent to about 70% of the normal state. The capacity decreases by about 1% for every 1°C drop in temperature below 0°C. If the temperature reaches -20°C, the battery may only have about 50% of its normal performance.
Therefore, it is normal for electric vehicles to not run far in cold weather. Don’t worry too much. As long as the temperature rises, the battery life will be restored.
Of course, there are certain things to pay attention to when using electric vehicles at low temperatures. As long as you do these things well, you can maintain the battery life to the greatest extent.
1, charge frequently.
html The battery life performance decreases after 4 days of cold weather. It is recommended that you carry the charger with you in the car in case of emergency. You should also charge more diligently than usual. Don't wait for the battery to run out before recharging. Generally, you need to charge immediately when the battery drops to about 30%.
2. It needs to float for a while.
It is difficult to charge electric vehicles in winter. When charging an electric vehicle, the charging time is usually 8 hours. In winter, you can float charge for a while. After the electric vehicle charger turns green, continue charging for 1-2 hours, which is better for the battery.
3. The charging environment should be better.
Just like you should not charge under the sun in summer, when charging electric vehicles in winter, you should also pay attention to the charging environment. Never charge in the open air in rain or snow. First, it is difficult to charge at low temperature. Second, it is easy for the battery to deteriorate. Water problem. It is best to charge in the basement or greenhouse, which is safe and efficient.
4. Be careful when riding a bicycle.
Battery performance itself decreases in winter. If you turn the handle all the way when starting or going uphill, there will be a momentary large current discharge. Therefore, you can consider turning the handle slowly when starting, and consider pushing it appropriately when going up a steep slope.
5. Keep it fully charged when not in use.
Under normal circumstances, if an electric vehicle is not used for more than 15 days, the battery will basically run out of power. If it is not used for more than 20 days, the battery will be basically empty. If it remains undisturbed for more than 30 days, the battery will basically starve to death. Even if the battery is charged, it will not be able to charge.
So if it’s cold in winter and you don’t need to travel with an electric car, remember to charge it and park it so that you can continue to use it when the weather is good without fear of damage.
Everyone can tell each other that it is normal for electric vehicles to not be able to run far in cold weather, and they will recover when the temperature rises. Develop good usage habits and you can have good battery life in winter.
