Is it normal for a 72v20a lithium battery to have an 81V battery capacity of 20ah when fully charged

<> lithium iron phosphate battery for electric vehicles.

Normally, a single lithium battery is volts when fully charged.

The number of charge-discharge cycles of lead-acid batteries is about 350, the number of charge-discharge cycles of ternary lithium batteries is about 800, and the number of charge-discharge cycles of lithium iron phosphate batteries is about 2000. The storage temperature of lithium iron phosphate battery is -10 35, and the discharge working temperature of lithium iron phosphate battery is -20 65.

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.

Is it 20 strings of ternary lithium? That full is 84v, 81v is still a bit low, 83v is OK, I am 22 strings, charging voltage, I am fully charged.

It only drops about 1V in two days, and there is a lot of pressure that you have less strings, if it is 21 strings of ternary, it will be worse If it is iron and lithium, 24 strings of lithium iron are full of voltage, but the physique of iron and lithium is more different, and the good ones can be stabilized around the left, and the difference is only that your 81V, the average is about that, which is also normal

Your battery should be poor consistency, if it is a smart protection board, it is best to balance more, you can balance at any time, of course, it is best to balance when it is fully charged, or charge it for a few more hours when charging to let the board automatically balance, or manually set the balance after fully unplugging the charger, and then charge all the strings to the same voltage and then charge

After the 72-volt battery (whether lead-acid battery or lithium battery) is fully charged, without unplugging the charging plug, ** measurement, the voltage is between 80 and 85 is normal. After unplugging the power supply, it is normal to measure the voltage at 76 volts for a period of time, if it is equal to or lower than 72 volts, it may be a problem with a certain battery, so it is not normal.

The 72-volt 20ah lithium battery has an 81-volt capacity of 20ah when fully charged, which is normal.

Hello: 1, rechargeable batteryTerminate the charge voltage] is the rated voltagetimes, 72v battery reachedIt's fully charged.

2. When the battery is fully charged, [Disconnect the power supplyThe battery voltage will drop slowly, and the voltage value you measured is normal.

If the logo is 72V, then the full charge should be within 84, which is still within the normal range.

About 10 hours, the capacity of the 20Ah battery is not too closed, and it is generally considered that 10 hours of full charging is the best, so it is best to use a charging current of 2A.

The main configuration of 72V electric vehicles, its battery is generally equipped with 72V20Ah, 72V24Ah, 72V32Ah and other models, while the motor is generally 800W, 1000W, 1500W and other models. Taking a 72V20AH battery as an example, let's first look at the actual charging amount, which is generally multiple times the ideal discharge amount of the open state.

From the calculations, we can know that the ideal discharge amount is about the kilowatt-hour (rated voltage.

Rated current * time), so the actual charging capacity is about kilowatt-hour. With the same search, we can know that the charging amount of 72V24Ah battery is kWh, and the charging amount of 72V32Ah battery is kWh. On average, the charging capacity of 72V electric vehicles is about kilowatt-hour.

According to the test data, if the 72V electric vehicle is fully charged, the normal full charge time is 8 to 10 hours. Of course, it is rare for people to recharge the battery after all the battery is exhausted, and they generally choose to charge it at 20%-40% of the remaining power, so the actual full charge time is about 5 to 8 hours. All things considered, it takes about 8 hours to fully charge a 72V electric vehicle.

Generally speaking, a 72V lithium iron battery should be between 79V and 81V after being fully charged and standing for about 2 hours. If it's 79v, there's nothing wrong with that.

How to buy. Lithium-ion batteries are divided into liquid lithium-ion batteries and polymer lithium-ion batteries. The electrolyte of lithium-ion batteries is fluid, so it is more unstable than lithium polymer batteries, and can be caused by a drop from an external force or by using a charger that does not meet the standards**.

Many portable electronic products such as mobile phones and laptops use lithium batteries. That is, many people have a "bomb" on their side. For the sake of safety, you must pay attention to the following points when purchasing.

1. Is there a clear capacity marked? Batteries that do not have a clearly marked capacity (e.g. 1000mAh or 1000 mAh) are likely to be inferior or ** batteries. Many cheap batteries on the market are made of **battery heart, **although cheap, but the life is short, the quality is unstable, and the mobile phone may be damaged if you are not careful.

Second, there is no *** standby time. Standby time is the continuous use time from the time the battery is loaded into the phone until the next charge. Generally, the batteries sold on the market cannot guarantee the standby time to customers, because the battery quality is unstable, and many cheap batteries have a short standby time because they use poor quality battery cores.

3. Whether to install a safety protection circuit board. Without a protective circuit board, the lithium battery is in danger of deformation, leakage, and leakage. Under the vicious price cutting competition, each company seeks a lower price to protect the circuit board, or omits this device at all, making the market full of dangerous lithium batteries.

Consumers can't tell if there is a protective circuit board from the appearance, so it is best to choose a reputable merchant to buy it.

The nominal voltage of the lithium iron phosphate monomer battery, the highest termination charge voltage is volts. So a 72V lithium iron battery is only 82V when fully charged. This may be related to the settings of the charger.

It should be considered normal. The actual voltage is a few volts more than his.

Rounding off, charging the Dongshi battery that completely emits photoelectric power once, Senchai's consumption of Nachun scattered electricity is roughly 11 kilowatt-hours of electricity.

Calculation: 72*120=8640*

The 72V120Ah battery has a storage capacity of 8640 Wh, but there will be an efficiency problem with actual charging. If it is a lead-acid battery, according to the efficiency of 70%, the amount of electricity required for charging is kWh; If it is a lithium battery, it can be calculated according to the efficiency of 90%, and the amount of electricity required for charging is degrees. Because of this, the amount of power required for a single charge of a 72V120Ah battery is about **degree**. Hu withered.

Theoretically, the battery capacity is:

72V*120Ah=8640VAH=8640Wh= degrees.

However, there is actually an efficiency problem with battery charging, if it is a lead sour bird, it can be calculated at 70%, and if it is a lithium battery, it can be calculated at 90%.

Therefore, if the electric pool is a lead-acid battery, the amount of electricity required for charging is degrees.

If Yu Nian is a lead-acid battery, the charging voltage should be a multiple of the nominal voltage of the battery, that is, about 86V, the charging cut-off voltage is 84V, and the charging current, that is, the charging current is 2A.

1. Theoretically, the battery voltage is determined by the composition of the positive and negative active materials and electrolytes. Under standard conditions, it can be calculated from the free energy data. Negative oxidation potential + positive reduction potential = standard battery nominal voltage.

2. There is a person in the United States who is known as a battery expert named Maas once proposed an acceptable charging current curve for batteries based on the premise of the lowest gas separation rate, which is a curve with a gradual decline in charging current according to the exponential law.

3. It means that the current is very large at the beginning of charging, and as the battery voltage continues to rise, the electric current of the charging shed and the stove will continue to decrease until it is full, and the charging current will be close to zero at this time. It then automatically switches to constant voltage charging to maintain the loss of electrical chain capacity of the battery from self-discharge.

4. No matter how long the charged power is, it will not be overcharged. This way of charging greatly extends the life of the battery and reduces the charging time.

Generally, for power batteries, the upper charging voltage should be, and the minimum discharge voltage is 30V.

For the battery, the best charging method is to charge according to the current of 10% of the battery capacity, and the charging capacity reaches 2-3 times of the battery capacity.

For example: 20Ah battery, with 2A current, charge for 20-30 hours.

Long-term charging with a small current is good for the battery, and a short charging with a large current will shorten the battery life.

According to the structural characteristics of the lithium battery, the maximum charging termination voltage should be not overcharged, otherwise the battery will be scrapped due to too much lithium ion in the positive electrode. It has high charging and discharging requirements, and can be charged with a special constant current and constant voltage charger. Usually the constant current charging is transferred to constant voltage charging after the festival, and the charging should be stopped when the constant voltage charging current drops to less than 100mA.

Summary. Pro, 72V80Ah lithium battery has 5760Wh electricity, lithium battery 72V, 80Ah full charge is: 72V 80Ah = 5760Wh (watt hour).

Hello, dear, very happy with your question, 72v80ah lithium battery and how much electricity is grand, help you find out that 72v80ah lithium battery has 5760wh electricity, I hope mine can help you to erect to you, I wish you health and happiness!

Pro, 72V80Ah lithium battery has 5760Wh electricity, lithium battery 72V, 80Ah full of poor digging power guess back the amount of panicle hunger is: 72V 80Ah = 5760Wh (watt-hour).

How much electricity is 5760wh.

Pro, 5760wh = 8640wh = = kWh.