50Ah to kWh Conversion for Battery
Table of Contents
50Ah to kWh
50Ah is used to mark the capacity of a battery, among which 50AH lead acid and 50AH lithium batteries are more commonly used. Ah stands for Amp-hours and alone cannot well represent the actual capacity of a battery. This article will briefly explain how to convert 50Ah to kWh, so that you can better calculate the relationship between battery capacity and system runtime in various scenarios.
Ah or Amp-hours often appears in battery
The picture above is a typical 50AH lead acid battery. We can read its basic information from the datasheet of these batteries. We can see that the voltage is 12V and the capacity is 50Ah.
The picture above is a lithium battery. Its capacity is marked as 50Ah and its nominal voltage is 48V. 这是一款典型的通信用48V LiFePo4 lithium battery。
Below we understand the 50Ah to kWh conversion by calculating and comparing the capacities of these two batteries.
50Ah to kWh Conversion
We convert 50Ah to kWh using the following formula:
Battery Capacity(In Wh) = Battery Voltage * Battery Amp-hours
Battery Capacity(In kWh)= Battery Capacity(In Wh) /1000
Please note that 1000Wh = 1kWh
According to the above picture, we read the battery voltage or the nominal voltage, as 12V. And its battery amp-hours is 50Ah. Then, substituting it into the above formula, we can get the following calculation:
Battery Capacity(In Wh) = Battery Voltage * Battery Amp-hours
= 12V*50Ah
= 600Wh
Battery Capacity(In kWh)= Battery Capacity(In Wh) /1000
= 600Wh/1000
=0.6kWh
According to the above picture, we read the battery voltage or the nominal voltage, as 48V. And its battery amp-hours is 50Ah. Then, substituting it into the above formula, we can get the following calculation:
Battery Capacity(In Wh) = Battery Voltage * Battery Amp-hours
= 48V50Ah
= 2400Wh
Battery Capacity(In kWh)= Battery Capacity(In Wh) /1000
= 2400Wh/1000
=2.4kWh
Based on the above calculations, we can know that the capacity of the first lead-acid battery is smaller than that of the second lithium battery.
So please note that the unit of Ah cannot fully represent the capacity of the battery, and the battery voltage factor needs to be considered. So when we are asked to convert 50AH to kWh, we need to add the battery factor to the calculation. And flexibly apply this formula:
Battery Capacity(In Wh) = Battery Voltage * Battery Amp-hours
Battery Capacity(In kWh)= Battery Capacity(In Wh) /1000
