Electric vehicle battery discharge time, how to discharge electric vehicle battery

48V20A means that you can discharge for 20 hours with a current of one A. Therefore, it takes about 120 minutes to discharge with a current of 10A, and it is also 120 minutes to discharge with a current of 6A for 48V12A.

Under normal circumstances, a special discharge meter is set to half of the nominal capacity of the battery for discharge.

Reaching the parameters of this comparison table is no problem.

The one who sells the battery is not wrong, 20ah with 5ah discharge time for the new battery is the standard of 260 minutes. 240 is not wrong either, 2

But if your electric vehicle motor is 500W, then you should use the discharge standard of electric motorcycle (10ah discharge 120 140 minutes), so as to meet the conditions for the use of electric motorcycle.

Related to the driving distance of the vehicle is also related to the undervoltage protection setting of the controller. (The under-voltage protection of 48V shall not exceed 42V).

According to the above conditions, the analysis:

Is the battery swapper inspected (individually) for each battery?

Is your electric car 350w or 500w (the detection standard for discharge is different, the result of 240 minutes is absolutely only used for electric vehicles below 350w).

Use your charger to test the battery, run out of power (ride to the bike and can't walk), use the charger to fully charge the time, the new battery must not be less than (7 8 hours in summer, 8 10 hours in winter), (that is, the time to change the light).

According to your own charging time, if it is less than 8 hours, the battery is required to be re-tested, and it takes more than 8 hours or even 12 hours to fully charge, then just change the controller and it's OK.

Do you mean discharge time? It should be the same.

12V20Ah refers to the discharge rate of 10 hours, that is to say, the discharge current should be 20A 10 hours = 2A during the test.

When the current is large, the actual capacity of the hole will be reduced.

It is best to use a "battery-specific discharge meter". It is recommended that you discharge with a homemade high-power resistor.

Use a wire about 3 mm in diameter to tightly wrap about 50 turns around the beer bottle, and pull out the bottle. This results in a hollow resistor (note that each turn is not connected together). Pay attention to the temperature of the battery when discharging, and it is best not to leave.

The main components include side walls (walls), end walls (walls), roofs, etc. The steel structure of the car body is composed of many longitudinal beams and transverse beams (columns), and the underframe of the car body is supported on the bogie by the heart disc or side support.

The steel structure of the car body bears the self-weight, load, curb weight and vertical dynamic load caused by the impact of the wheel and rail and the vibration on the spring; Longitudinal loads such as traction and compressive impact forces generated between vehicles when the train starts, changes, and goes up and down ramps; As well as lateral loads including wind, centrifugal force, and the pressure of the cargo on the sidewall.

Discharge with bulbs: to discharge the 12V battery, several 12V bulbs can be connected in parallel as a load, and different discharge currents can be obtained by changing the number of bulbs receiving people.

Discharge with variable resistance: When discharging, connect the variable resistor and the battery in series, and adjust the variable resistance to obtain different discharge currents.

Discharge with electrolyte: Fill the battery shell with dilute electrolyte, and then release two plates as electrodes, and change the distance between the two plates to obtain different discharge currents.

Discharge by charging the battery: This method is mostly used for the discharge of more batteries, and the voltage of the discharged battery must be higher than the voltage of the charged battery, and a certain discharge current must be maintained. When the voltage of the discharged battery is equal to the voltage of the charged battery, the number of charged batteries should be reduced or the rechargeable battery should be replaced so that the discharged battery can continue to discharge.

Answer: The battery is discharged through oxidation reaction and reduction reaction. Metallic lead is the negative electrode, which undergoes an oxidation reaction and is oxidized to lead sulfate; Lead dioxide is the positive electrode, which undergoes a reduction reaction and is reduced to lead sulfate. When the battery is charged with direct current, lead and lead dioxide are generated at the two poles, respectively.

After the power supply is removed, it returns to its pre-discharge state and forms a chemical cell.

Lead-acid batteries are batteries that can be charged and discharged repeatedly, and are called secondary batteries. Its voltage is 2V, and it is usually used in series with three lead-acid batteries in series, and the voltage is 6V. The car uses 6 lead-acid batteries connected in series to form a 12V battery pack.

Ordinary lead-acid batteries should be supplemented with distilled water after a period of use, so that the electrolyte remains containing 22-28% dilute sulfuric acid.

Electric vehicle batteries are not allowed to rush when they run out of power, even if they are new. That won't do the battery any good. Generally, it is best to charge about 60% of the remaining battery. I'm a repairer for electric cars.

Use a resistance wire to connect to both ends of the battery, but be careful not to overdischarge, or use a high-power battery detector to discharge several times in a row, and stop when the resistance wire burns red, and then release it after cooling.

You are not affected by traditional concepts, and you can charge it before you finish it! If it's non-discharged, find a resistor to send it! I know a charger, you can charge and discharge a little quickly, just a few minutes, if you often discharge like this, you can try, but this thing, the function of research, is not for discharge, originally it is an instrument for fast charging of battery cars, and it also has a battery repair function!

It can extend the life of the battery! You can try it all the way! **。

Hope it helps!

Just use the heating wire to discharge. The kind used for roasting.

Electric vehicle batteries generally last 1 to 3 years. For users whose daily traffic distance is less than 30 kilometers, if the motor, controller, charger and other factors are good, and the use method is not improper, the minimum service time of a good set of electric bicycle batteries should be guaranteed to reach more than 1 year.

If you take care of it a little, it can generally be used for 1 and a half to 2 years; If you add a maintainable technical solution, you can also extend some service time through professional maintenance, and it is not impossible for a group of electric vehicles to have a battery life of 3 years.

Notes:

1. The smaller the depth of discharge of the battery each time it is used, the longer the service life of the battery, so no matter how large the capacity of the battery pack is used, the user should develop a good habit of charging at any time.

2. When the battery needs to be placed for a long time, the heart must be fully charged and replenished regularly, generally once every 1 2 months.

3. The high-current discharge has certain damage to the electric bicycle battery, so when starting and going uphill, please use the pedals to help.

The batteries of electric vehicles are guaranteed for a long time, generally for 8 years. So there is no problem during the warranty period.

Look at the temperature, if it is above zero 15 degrees Celsius, put it for about half a year. If it is minus 10 degrees Celsius, it must be charged once in 3 months. Generally, two-wheeled electric vehicles have anti-theft devices, which will consume a lot of power when setting the anti-theft status when storing.

The discharge performance of electric vehicle batteries in winter is not particularly good, and the mileage will decline in winter, because the mileage is related to the weight of the vehicle, road conditions, tire pressure, etc., during riding, on the bridge, uphill, headwind and heavy load driving must be assisted by foot. When starting, you should first ride with your foot to avoid damage to the battery and affect the service life of the battery.

Charge frequently, use lead-acid batteries, develop the habit of charging on the same day of use, and fully charge no matter how far you ride after riding an electric vehicle every day, and never wait for the electricity to run out before charging, so as not to shorten the battery life due to deep discharge.

The battery can be charged once a month, but the life of lead-acid batteries (most of the electric vehicles are lead-acid batteries, a few are lithium batteries) is almost the same as that of normal use, that is, if you don't use it, it will also be scrapped a little bit of aging to the same time, the theoretical life of lead-acid batteries is two years, but according to my experience, they can generally be used for more than three years, but the longest life span will not exceed four years!

<> lithium iron phosphate battery for electric vehicles.

It depends on the capacity of the battery, the larger the capacity of the battery, the longer it can be stored, generally the lead-acid battery needs to be charged once in two months, and the lithium battery needs to be charged once within a month, and the lithium battery is equivalent to scrapping once it is emptied.

Before buying a lithium battery, see if the battery cell used is a product, the quality of the battery determines the quality of the battery, such as capacity and energy density, etc., and then find a lithium battery produced by a large manufacturer, the production process is mature, the after-sales service is guaranteed, and the lithium battery market reference price is 1250 yuan. If you need to run long distances, it is best to install a range extender, with which you are not afraid of running out of power halfway, it can help you gallop without worry.

Since the battery connected to the electric vehicle is always on, the new battery can only be put on for a month at most, and it is best to charge it after about 20 days, if it is a battery that is more than three years old, it is estimated that it should be charged almost a week.

Please look at the upper left corner of the figure, connect the circuit, and the battery will be energized.

The lead-acid battery is self-discharged for about 1% days, and it will be discharged and lost in more than 3 months, and it will not be charged and cause damage. The battery is not used for a long time, and charging it once a month is good for battery maintenance.

Hello dear, <>

I'm glad to answer for you, the electric vehicle battery has a battery capacity of 50ah, and the discharge time is about 25 hours. The length of time it takes for an EV battery to discharge depends on several factors, such as the capacity of the battery, the weight of the EV, the driving speed, road conditions, load, etc. Generally speaking, the discharge time of the electric vehicle battery should be about half of the battery capacity, that is, the discharge time of the battery with a battery capacity of 50Ah is about 25 hours.

However, this is only a rough estimate, and the actual time of use depends on the specific situation. If you notice that the battery discharge time of your electric vehicle is significantly short, it may be due to aging battery, damaged battery, insufficient battery charge, etc. It is recommended that you check the battery of your electric vehicle and replace or repair it in time to ensure the normal use of your electric vehicle.

In the past two years, consumers in the market for the electric vehicle battery Shouxiao Li Ming controversy is very large, many owners think that the original electric car can be ridden for three or five years, and now the electric car can only be ridden for one or two years with a new battery, why is there such a big difference in battery life?

So, how long is the normal life of an electric vehicle battery? In response to this question, I also consulted professional battery people and got the answer.

Due to the current market electric vehicle battery is generally used for lead-acid battery, from the characteristics of lead-acid battery, the normal charge and discharge of ordinary lead-acid battery is about 300 to 400 times, if the owner charges the electric vehicle once in an average of 3 days, the battery can be used for about three years; If the owner charges the electric vehicle every 2 days, then the battery life of the electric vehicle is about two years.

In addition, it can also be calculated according to the annual use of 60%-70% of the battery capacity of the lead-acid battery, and its service life is averaged in one to two cautious years, after the most saturated and active period of the battery, the charging and discharging performance of the battery will decline significantly, with the passage of time, the battery capacity is getting smaller and smaller, until the final first slag is exhausted.