Whenever it comes to winter, as a small connoisseur in the industry can always hear some complaints from car owners, saying that the endurance of electric vehicles has dropped very seriously, electric vehicles are obviously full of electricity, but they are not durable, usually charged once every 3 days, and now they have to be charged every day, there are many similar complaints, then, why are electric vehicles not durable in winter? Is there any workaround? In response to this problem, let's talk about it.
Why are electric vehicles not durable in winter?
Some people say that electric vehicles are not durable in winter, because of its cheap price, although this view has some slight truth, but can not completely "stand on the ground", have to admit, electric vehicles because of cheap, many vehicles are equipped with more "afraid of cold" lead-acid batteries, so in the winter durability will decline, this is the reason, then, why say that this view "untenable"?
If you search on the Internet, in fact, about electric vehicles in the winter is not durable "spit" abounds, and an electric vehicle, its battery is worth more than 10,000 yuan, many times more expensive than the battery of the electric vehicle, but still can not avoid the "bottleneck" of the decline in winter endurance, then, the electric vehicle is not durable in winter, what is the reason?
In fact, the battery is not durable in winter, mainly related to the working principle of the battery, the role of the battery is to put the input current, through the active substance of the battery for chemical conversion, the conversion into storable "chemical energy" for preservation, in the electric vehicle start and then convert the "chemical energy" into the required current release, and this working state is charging and discharging.
In the process of charging and discharging, its efficiency is directly linked to the temperature, the normal temperature of charging and discharging is between 5-40 ° C, the optimal temperature is 25 ° C, and once the winter temperature is too low, it will lead to a "sharp drop" in the chemical reaction of lead and acid in the conversion of important roles, which makes the usable capacity of the electric vehicle battery decrease, the power loss becomes faster, and the charging time will increase.
Suggestions for solutions: If the endurance of electric vehicles declines, the impact on their daily travel is not large, this time actually does not need to be deliberately handled, such as normal weather, battery life will naturally recover, but if the endurance of the electric vehicle itself is not high, the endurance decline leads to daily charging or not enough daily use, then, do not "sit still", small connoisseurs share 5 ways to solve the winter electric vehicle endurance "plummeting", can effectively improve this problem.
5 charging methods to improve the battery of electric vehicles that are not durable
Method 1: Improve the ambient temperature, although the electric vehicle is used in winter, but the discharge time is due to the problem of being outdoors, it is impossible to control the problem of fast discharge, but the charging environment owner can control itself, this time you can improve the charging environment temperature, so that when the battery is charged, the reaction efficiency of the active substance becomes faster, promote the battery storage capacity, and let the battery life be "less discounted" in winter.
Specific method: If there is a condition, try to charge indoors, but it is not recommended to charge at home, you can charge in the indoor parking garage, if only outdoor charging, you can charge during the day when the temperature is relatively high every day, in general, as long as the temperature is not less than 0 ° C, the efficiency of the active substance reaction of the battery is basically restored, which can make the battery's storage more sufficient.
Method 2: electric vehicles with charge, many car owners have a misunderstanding, electric vehicles can not be used with charge, in fact, the current lead-acid and lithium batteries do not have a memory effect, if the electric vehicle is a lithium battery, can be charged with the use, there will be no impact, lead-acid battery is not recommended to charge with the use, mainly considering its cycle charge and discharge times are relatively small reasons, but if the endurance decline is serious, or will waste the number of charging, it is better to take the initiative in their own hands, the use of charge with the increase of electric vehicle endurance.
Specific method: Although it can be charged with use, but if it is a lead-acid battery, it is still necessary to ensure a residual power control as much as possible, and the amount of electricity is charged between 25% and 35%, which can better protect the battery from the impact of vulcanization, which not only ensures the endurance, but also does not damage the battery.
Method 3: do a good job of battery warmth, which can be charged, discharged can make the efficiency of the active substance inside the battery to improve the efficiency, as long as the battery is done to keep warm, the internal electrolyte, lead plate and other substances, will not be affected by low temperature, can do normal charging, discharge.
Specific methods: Now there are a lot of battery protection sleeves, its purpose is to "prevent the cold" of the battery when it is cold, and many people say that lithium batteries cannot be used, spontaneous combustion will occur, small connoisseurs should also debunk rumors, lithium batteries are not so easy to spontaneously combust as imagined, as long as it is not in abnormal circumstances, some bumps will not make the battery spontaneously combust, so you can also rest assured that you can keep warm.
Method 4: extend the "float charge" time, when it is cold, the charging efficiency is reduced, resulting in the charging time of the electric vehicle becomes longer, and the current charger is "three-stage", as long as the constant current, constant voltage charging is completed, it will become a green light, the owner mistakenly thinks that the battery has been full at this time, unplug the charger, in the case of no full charge, the durability of the power will naturally decline, therefore, to extend the "float charge" time.
Specific method: "floating charge" refers to the "three-stage" charger in the third stage of charging, it is a small current mode, a kind of maintenance charging, the original intention is to let the battery can extend life, and "float charge" in winter charging, extended by 1 to 2 hours, can also play a role in the battery storage more sufficient, the purpose of more durable.
Method 5: develop the habit of standardized charging, not only cycling has the correct posture, charging also has a standardized process, and many times, everyone is more casual when charging, such a way, in the winter is not recommended to use, it will also make the battery life "discounted", develop standardized charging habits, is a way to improve battery life.
Specific method: when charging, the charger "first insert the battery", wait for about 10 seconds, after the charger soft start, "plug in the power supply", such a practice, is to protect the battery from the impact of the surge voltage, resulting in the active substance falling off, affecting the charging efficiency, persistently adhere to such charging habits, will make the battery charging efficiency higher, the capacity decline will be relatively slow.
Conclusion: When the electric vehicle in the winter endurance declines, first of all, do not worry, do not suspect that the battery has a problem, do not directly replace the battery, after all, if it is the reason for the temperature, replace the new battery, the battery life is also so, we can through some skilled charging methods, to "prescribe the right medicine", improve the endurance problem of the electric vehicle, of course, if you are in the place, the winter temperature will be lower than minus 10 ° C or lower, small connoisseurs should recommend, in the choice of battery category, To choose colloidal batteries or some batteries with hardy technology, although the price of these batteries is slightly higher, it can fundamentally solve the problem that electric vehicles are not resistant to low temperatures.
I hope the above can help you, pay attention to the electric vehicle connoisseurs, and share the information and views related to electric vehicles every day.