-How much remaining power is best for charging electric vehicle batteries?

How much remaining power is best for charging electric vehicle batteries?
author:enerbyte source:本站 click114 Release date: 2024-05-15 09:01:24
abstract:
When is the best time to charge an electric vehicle battery while riding? Here are the answers provided by 5 netizens. Netizen 1 Most electric vehicles are lead-acid batteries, and due to the deeper and shallower discharge, the number of cycles will signif...

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When is the best time to charge an electric vehicle battery while riding? Here are the answers provided by 5 netizens.

Netizen 1

Most electric vehicles are lead-acid batteries, and due to the deeper and shallower discharge, the number of cycles will significantly increase. Therefore, according to this theory, frequent charging is beneficial for cycle life, but for the chargers widely used in the current market, due to factors such as price and technological level, chargers have disadvantages such as high defect rate, poor reliability, and low accuracy. Therefore, sometimes frequent charging can actually affect the battery's lifespan. Empty the battery and charge it again. Although the number of charges is reduced, there may always be differences between individual batteries during discharge, which may cause some individual cells to be over discharged. The charging capacity of over discharged batteries will be greatly reduced, leading to the problem of insufficient charging. In addition, due to discharging and recharging, the charger is overloaded for a long time and is prone to damage. So it is more suitable to charge the electric vehicle battery once when it is discharged 60% -70%. Assuming that your car can ride 100 miles when fully charged, it must be charged after about 70 miles. If you ride 30 miles every day, charging every day is beneficial and harmless. If the battery level does not exceed 30%, it will not be charged temporarily.

1. After continuously charging the battery for more than 10 hours, if the charger still does not turn on or the battery shows signs of overheating, the charging should be stopped immediately. Generally, the charging time of the battery should not exceed 8 hours.

2. The same type of electric vehicle is charged once a week by one person, and only needs to be charged when there is no battery. It has only been used about 260 times, and can only run one-third of the new car's journey now. And another person can charge as much as they need to go to and from work, and after using it for three years, they can still drive more than ten kilometers, which is the difference in charging control.

3. When an electric vehicle is not ridden for a long time, it should be recharged and stored, and discharged and charged once a month.

4. After long-distance driving in summer, wait for half an hour before charging. Do not charge outdoors in sunlight, and try to charge indoors in winter.

5. Every time the battery is charged, it is completed by changing the light, which can avoid vulcanization and extend the battery's lifespan.

Netizen 2

Regarding the question asked by the questioner about the best charging level for electric vehicle batteries, let me share some of my opinions.

The accurate charging of electric vehicle batteries directly affects their service life. What people usually pay the most attention to is when it is best to charge. Besides this point, there are other things that need to be detailed!

1、 Charging order

When charging electric vehicle batteries, the charger output plug should be inserted into the battery charging socket first, and then the charger should be plugged in

Pierce your head into the socket, investigate the indicator light for charging verification (as usual, a red light indicates charging, a green light indicates abundant power, and the more discharge, the longer the charging time).

2、 Charging time

The number of charging and discharging cycles of a battery is certain, usually around 600-800 times. Charging once is equivalent to losing the opportunity of charging and discharging once. Frequent charging of the battery means that it will greatly shorten its service life.

In typical environments where electric vehicles are used, it is advisable to charge the battery when there is a remaining 20% -30% charge, which can suppress the early loss of battery capacity and also suppress over discharge.

If it is rarely driven as usual and has not reached 60% -70% of the longest driving distance in a week, it is recommended to charge it once a week. If going out or not using it for a long time, it is recommended to replenish the battery once a month and store the electric vehicle in a cool and dry place.

3、 Charging duration

The charging time should be appropriately controlled within 8-10 hours, and should not exceed 8 hours in summer and 10 hours in winter. After the charger indicator light turns green, float charging for about 1-2 hours can suppress charging incidents. Remember that the charging time should not exceed 12 hours, as charging during a lifetime can seriously damage the battery and affect its performance.

The normal lifespan of electric vehicle batteries nowadays is usually around three years, and the reason for the large premature completion lifespan is due to different charging customs. Accurate charging methods for electric vehicle batteries can not only provide a peaceful travel experience for oneself, but also prolong the lifespan of one's own batteries.

Netizen 3

Frequent charging is not a problem. At the very least, it is not allowed for the battery to be severely depleted and stored for a long time. If conditions permit, frequent charging is possible. Of course, if the battery level can be guaranteed to be above 50%, the difference between charging frequently and not charging is not significant.

Firstly, it is important to understand that you are using a lead-acid battery with a electrolyte ratio of 1:1.3 (distilled water and sulfuric acid). When the battery is overcharged, the sulfuric acid attached to the electrode plate runs into the water, resulting in the highest concentration of sulfuric acid in the water. After discharge, as the sulfuric acid in the water adheres to the positive and negative electrode plates, if you do not charge the sulfuric acid, it will gradually corrode the lead powder on the electrode plate, causing it to loosen and fall off the grid of the electrode plate. If it falls between the north and south electrode plates, a short circuit will occur, and the more you charge, the worse it will become until it bulges.

The battery can be charged after about half of its usage, and battery manufacturers have a test curve for the impact of discharge periods on charging. For example, some lead-acid batteries can be used up to 70% of their capacity for over 1500 uses, 50% for over a thousand uses, and then recharged about 500 times after use.

Although the charging time is prolonged, it will reduce the oxidation and crystallization of the electrode plate, and the charging temperature is relatively low, which has a small negative impact on the battery. For example, the battery capacity is about 1c, which is 10% of the charging current, and it can be charged for about 13 hours. Be able to use high-power chargers for fast charging in advance and in emergency situations, achieving the purpose of emergency use.

Netizen 4

The charging methods of lead-acid batteries and lithium batteries are different, so the best charging level for electric vehicle batteries should also be divided into two situations.

If your electric vehicle uses lead-acid batteries.

The main reason that affects the lifespan of lead-acid batteries is battery vulcanization, which occurs due to factors such as high current discharge, inability to charge in a timely manner, deep discharge, frequent charging, short charging time, and factors caused by the charger itself. The most suitable time to charge lead-acid batteries is when there is only about 30% left when downloading them. But this is difficult to grasp. So many times, I advocate that if the distance of a day's cycling is greater than or equal to 50%, then you need to charge it every day (after confirming that it is no longer used). If your cycling journey is less than 30% of the continued distance, you can choose to charge it every two days. If it is less, it can be extended appropriately, but cannot exceed three days.

If your electric vehicle uses lithium batteries.

After use, the lithium battery is in a shallow cycle state, and charging it every day will extend the lifespan of the electric vehicle's lithium battery. Due to the fact that lithium batteries will enter the vulcanization process after discharge, if charged in a timely manner, less severe vulcanization can be removed. Therefore, lithium batteries should be charged as early as possible after use, in order to keep the battery fully charged as much as possible.

Netizen 5

With the development of time, lithium-ion batteries are now being used in batteries. For lithium-ion electric vehicles, the first 12 hours of charging is incorrect, and it only needs to be recharged. If charged for a long time, it may damage the battery. The activation of lithium-ion batteries is activated during use, and there is no saying of charging activation.

Only by using the original configuration of the charger can the battery be used reasonably. There are many fast charging chargers on the market, but I do not advocate using them because it will damage the battery. If you use them alone (without people or climbing slopes), when the electric vehicle's battery level is 60% -70%, it can be fully charged, so as not to overuse the battery and affect its lifespan. When charging, the battery can be fully charged without the need for excessive charging. Electric vehicles can be recharged when there is still 50% of the battery when driving people uphill, without the need for long-term charging, and can be fully charged.

When an electric vehicle is not in use for a long time, it is also necessary to ensure charging once a week and to store the battery for a good service life. If no one handles it for a long time, the battery should also be maintained once a month to increase the lifespan of the electric vehicle.

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