1. Ampere-hour
Amp hours is a way to measure the capacity of a battery, meaning how many hours the battery can be discharged at a certain amount of current, for example 10 amp hours can mean 10 hours of continuous discharge at 1 amp or 5 hours at 2 amps, amp hours are often written as Ah, a relationship between current and time:
Ah = I (A) x t (h)
The advantage of using ampere hours is that when we know the amount of current being used in a device we can roughly estimate how long the battery will last and have a clear idea of the capacity and life of the battery.
Ampere-hours are generally used to measure larger capacity batteries, and similarly milliampere-hours (mAh) are used to measure smaller capacity batteries.
1Ah = 1000mAh
2. Ampere
Ampere is a physical quantity that expresses the magnitude of the current, a unit that measures the strength of the current, and from a microscopic point of view, it is a measure of the speed of the current flowing through a circuit, calculating the number of electrons that flow through a specific point in one second, and is expressed in terms of I (A).
3. Ampere-hour to Ampere conversion
Ampere-hour is a simple measure of the size of the capacity of the unit will be easy to get:
E (Ah) = I (A) x t (h)
So when we need to calculate the amperage through the ampere hours, we need to know the time of use of the battery, for example: a 20Ah battery used for 10 hours, then the current size of the battery operation for 20Ah/10h = 2A, so you can convert from ampere hours to amperage. When faced with small batteries need to be converted, such as 300mAh battery work for 10 hours, the need to convert mAh to Ah, according to 1000mAh = 1Ah, 300mAh = 0.3Ah, can be derived from the working current of 0.3Ah/10h = 0.03A, in real life for the convenience of small batteries or use mAh.
4. Ampere-hour conversion of the actual role of the ampere
Solar battery system in order to be able to supply power at night will be equipped with batteries to store electricity, solar panels through the battery charge controller will charge the battery, clear the current size of the solar panel can be roughly estimated after the time needed and can be used for the time for household batteries to measure the battery capacity in kilowatt hours.
5. Relationship between Ampere-hour, Ampere, and Kilowatt-hour
Ampere-hour and kilowatt-hour are both measures of battery capacity, and in the case of large domestic batteries kilowatt-hour is more in line with the standard for household electricity, in order to find the relationship between them you also need the voltage U (V), Ampere-hour Ah, Ampere-I (A), kilowatt-hour kwh.
First of all 1000wh = 1kwh, due to the energy of watt-hour wh the sun is small can not directly describe the large amount of electricity, so the life of the electricity is generally used kwh.
wh = P (w) × t (h)
Power P (w) is a unit describing the speed of current energy is calculated as
P (w) = I (A) × U (V)
Since the ampere-hour is calculated as
Ah = I (A) x t (h)
So the watt-hour can also be expressed as
wh = Ah × U (V)
regardless of the battery capacity to use ampere hours or kilowatt hours, after understanding the current size of the battery when using ampere (A) and voltage size (V) can be used with each other, for example, 48V, 12kwh size of the battery in the battery can be expressed as 12kwh / 48V = 250Ah, if the battery’s output current of 5A, then the battery can continue to work for 50 hours.
Conclusion
Ampere-hour (Ah), Ampere (A), kilowatt-hour (kwh) voltage (V) has a very important role in measuring the capacity and use of the battery time, through this article you can clearly know the relationship between them on the battery calculations and use of a better experience.
