Some users have reported that it was full of electricity once in the summer. It is no problem to go back and forth for 60 kilometers a day. In winter, it can only run forty or fifty kilometers. In the evening, when you get off work, can you ride home to see the character and luck. It is.
So many car owners began to change the battery for the electric car in the winter.
Here to remind everyone:
The low temperature in winter and the reduction of the storage capacity of lead-acid batteries are normal. Regardless of the quality of the battery, users should not blindly replace the battery.
At present, 90% of electric bicycles sold and used on the market use lead-acid batteries. As the temperature drops, the activity of various substances in lead-acid batteries will decrease, and the storage capacity will also deteriorate.
When the temperature is around 25 °C, the lead-acid battery can be stored normally and can be discharged to the maximum. When the temperature drops below 10 °C, the stored capacity of the lead-acid battery will be reduced by 20%. When stored below 0°C, the stored power is reduced by 30% or more. Therefore, even in the newly purchased electric vehicles, some winters may have poor battery life. Generally, the optimal charging environment temperature of electric vehicle battery is 25 °C. It is better for residents with heating in the home to charge the electric vehicle or electric vehicle battery indoors to enhance the battery storage capacity and extend the driving distance.
In addition, the amount of power consumed by sudden braking and restarting is several times that during normal driving. In order to reduce the power consumption in winter, the brakes and restart should be minimized under the premise of ensuring safety.
Long-term fast charging also shortens battery life. The input voltage of the electric vehicle battery is 50 volts. It takes 10 hours to complete the charging, and the fast charging input voltage can reach 400 volts. The battery can be fully charged in half an hour. Occasionally, using a quick charger is no problem, and often fast charging will shorten the service life of ordinary lead-acid batteries.
Therefore, as long as it is used properly, the battery that is "sleeping" in the winter will be restored in the summer. Don't rush to restore the battery performance, remove the cover and add water. Otherwise, it is easy to cause battery damage, and there are also great security risks.