How much mA is a battery 4 0Ah?

4ah is equal to 4000mAh, which is 4000 milliampere-hours.

How harmful is battery pollution:

Relevant experts pointed out that in our lives, if a No. 1 battery rots in the ground, it will cause one square meter of land to lose any use value.

If the waste battery is mixed with domestic waste, the battery will rot, which will cause the cadmium, lead, nickel, mercury and other heavy metals in the rotten battery to dissolve, which will pollute the soil and water, and eventually pass through the food chain.

Harmful to human health. If a person is poisoned with mercury, it can cause the central nervous system.

The mortality rate is as high as about 40%. Therefore, cadmium is recognized by experts as a Class I carcinogen.

Experts also found that there are five substances in the natural environment that pose the greatest threat to the soil, and batteries contain three of them: mercury, lead, and cadmium. Mercury is what everyone knows as mercury.

Mercury is a high carcinogen. Mercury is a toxic substance, and scientists have found that mercury has a toxic effect on the immune system and endocrine system.

and so on, and children are more vulnerable.

Before calculating your problem, it is necessary to talk about the advance rate of the current unit, 1 ampere is equal to a kiloampere. 4A is 4000 mAh, which means that the battery can also be said to be 4000AMH.

This is just two milliampere units of expression, and the way he now expresses it is multiplied by 1000 is its milliampere number, that is, a 4000 milliampere battery, which is relatively large.

It is marked by the 10-hour discharge rate.

So it should be Ann. i.e., 400 mA.

4000mah

Analysis: mAh is a physical quantity that describes the capacity of a battery.

Because so. Ask again if in doubt.

1 ampere-hour is equal to 1000 mAh, so your four-ampere-hour is 4*1000=4000 mAh.

A 44ah battery is 44000 mAh. 44ah is the battery storage capacity of 44 amp hours, that is, charge (or discharge) with a current of 44 amps for 1 hour, and it will be charged (or discharged) to the rated capacity of the battery. The rated capacity c of the battery, measured in ampere-hours, is the product of the discharge current ampere and the discharge time hour, so after conversion, 44ah is equal to 44000 mAh.

Factors affecting battery capacity:

1. The effect of discharge rate on battery capacity.

The capacity of the lead-acid battery decreases with the increase of the discharge rate, which means that the larger the discharge current, the smaller the calculated capacity of the battery. There will be different capacities for a given battery to be discharged at different time rates, and it is essential to know the time rate or multiplier of the discharge when it comes to capacity.

2. The influence of temperature on battery capacity.

Temperature has a great impact on the capacity of lead-acid batteries, and generally decreases with the decrease of temperature. When the temperature of the electrolyte decreases, the viscosity of the electrolyte increases, the ions are subjected to greater resistance, the diffusion capacity decreases, and the resistance of the electrolyte also increases, so that the resistance of the electrochemical reaction increases, and a part of the lead sulfate cannot be converted normally. Charge acceptance decreases, resulting in a decrease in battery capacity.

3. The effect of termination voltage on battery capacity.

When the battery is discharged to a certain voltage value, the voltage drops sharply, and the energy obtained is actually very small, and if it is deeply discharged for a long time, the damage to the battery is considerable. Therefore, the discharge must be terminated at a certain voltage value, and the cut-off discharge voltage is called the discharge termination voltage. Setting the end-of-discharge voltage is of great significance to prolong the service life of the battery.

The above content reference: Encyclopedia - battery capacity.

The battery is 2500 mAh.

1ah=1000mah；1 ampere-hour = 1000 mA-hour. There is an electric car battery.

It's 24ah, and another mobile phone battery is 1000mAh, so the electric car battery is 24 times that of the mobile phone battery.

ah = the integral of the output current and time of the battery, if it is considered according to the negative load of the constant current, it is the product of the discharge current and the discharge time of the battery, which is supported for 1 hour under the current, or 2 hours under the support, or 20 hours under the 110mA (.

Temperature on battery capacity.

Effect: temperature on lead-acid batteries.

The capacity has a greater impact, generally with the decrease of temperature, the decrease of capacity, the relationship between capacity and temperature such as: CT1 = CT2 1+K (T1-T2), T1T2 are electrolytes.

The temperature of k, k is the temperature coefficient of the capacity, ct1 temperature is the capacity (ah) when the lead ear is t1, and ct2 is the capacity (ah) at the temperature t2 in the battery production standard.

Generally, a temperature should be specified as the rated standard temperature, such as T1 is the actual temperature, T2 is the standard temperature (generally 25 degrees Celsius.

When the electrolyte temperature decreases, the viscosity of the electrolyte increases, the ions are subjected to greater resistance, the diffusion capacity decreases, and the resistance of the electrolyte also increases, so that the resistance of the electrochemical reaction increases.

The battery is 2500 mAh.

1ah=1000mah；1 ampere-hour = 1000 mA-hour. If there is an electric car battery that is 24ah, and another mobile phone battery is 1000mah, then the electric car battery is 24 times that of the mobile phone battery.

ah = the integral of the output current and time of the battery, if it is considered as a constant current load, it is the product of the discharge current and the discharge time of the battery, which is supported for 1 hour at current, or 2 hours under support, or 20 hours at 110mA (.

Effect of temperature on battery capacity:

Temperature has a great impact on the capacity of lead-acid battery, generally with the decrease of temperature, the decrease of capacity, the relationship between capacity and temperature such as: CT1 = CT2 1+K (T1-T2), T1T2 is the temperature of the electrolyte, lead is the temperature coefficient of the capacity, CT1 temperature is T1 when the capacity (Ah), CT2 is the capacity (Ah) when the temperature is T2 in the battery production standard.

Generally, a temperature should be specified as the rated standard temperature, such as T1 is the actual temperature, T2 is the standard temperature (generally 25 degrees Celsius) The negative plate is more sensitive to low temperature than the positive plate, when the electrolyte temperature is reduced, the viscosity of the electrolyte increases, the ions are subject to greater resistance, the diffusion ability decreases, and the resistance of the electrolyte also increases, so that the resistance of the electrochemical reaction increases.

Lithium battery with a voltage of 3.7 volts and a capacity of 4 ampere, (the storage capacity is 0.015 watts.)

The lithium battery with a voltage of 12 volts and a capacity of 4 ampere-hours has a storage capacity of 0.048 kilowatts (12*4=48).

The lithium battery with a voltage of 60 volts and a capacity of 4 ampere-hours has a storage capacity of 0.24 kilowatts (60*4=240).

The battery does not use the kilowatt as a unit of power, which is the unit of power for electrical appliances. Due to the different discharge rates of lithium batteries, there are generally 1C, such as electric vehicles, and there are also 5C, 10C or even higher discharge rates. The output current varies greatly, depending on the specific parameters on the battery housing.

It is the battery storage capacity of 4 amp hours, that is, charge (or discharge) with a current of 4 amps for 1 hour, and it will be charged (or discharged) to the rated battery.

Capacity. 4ah = 4000mAh (i.e. 4000 mAh) 18650 battery should also be marked with 4000mAh (4000mAh.

You lost one"times"words, the meaning is not the same,'mah"is a unit of electricity; "Milliampere" is a unit of electric current.

Of course, now many people mix and use, you don't mix, and people say that you don't rush to "get in time".

It is 4000 mAh indicated. Milliamperes and milliampere-hours are not the same, milliamperes are the unit value of current, and milliampere-hours refer to the capacity of the battery, although the difference between the two is only one word, but the meaning of the expression is very different.

milliamps

A milliampere, which is a unit of measurement for electric current, is represented by the letter MA. A milliampere is one thousandth of an ampere. The ampere is the international uniform unit of current, represented by the letter A.

In physics, the current is represented by an English capitalized i. The relevant units are large unit Ana, small unit Milli Zen return Anma, and smaller unit Micro A A.

mAh

Milliampere-hour is a small unit of the main unit ampere-hour, when the current intensity is measured in milliamperes (ma) and time is measured in hours (h), the two of them are multiplied by milliampere-hours (mah). Like the usual mobile phone battery, or the power of the rechargeable battery is milliampere-hour, it is defined as the current generated by complete discharge at a certain discharge time. For example, 1300 mAh means that the battery can be fully discharged for 1 hour at a discharge current of 1300 mAh.

ah is ampere-hours, which is a unit of capacity, and it can be converted into milliampere-hours, but there is no way to convert it into milliampere, because these are two completely different units, just like there is no way to convert meters and kilograms to each other.

Through the above explanation, do you have a certain understanding of milliamperes and milliampere-hours?

How many volts is a lithium battery.

The voltage of a lithium battery is usually volts, so the voltage of a lithium battery is still volts. mAh (milliampere-hour) indicates the capacity of the battery, which is measured in milliamps multiplied by the number of milliamps in a small segment, which refers to how many milliamps of current the battery can provide in an hour. Therefore, the lithium battery can provide a current of 4000 mA at volts, that is, it can continuously provide 4 amps of electric digging current for 1 hour.

4800 mAh. 1ah is equal to 1000 mAh, then, it is equal to 4800 mAh.

According to the 10-hour discharge rate: Fenchun.

Amp) 1 amp = 1000 mA. Cover feast.

Milli stove silver an.