With this app you can make battery sizings and running times. For battery sizing you will need 3 parameters; System Rate, System Voltage (or blocks) and the Battery Autonomy. The running time just require the first two parameters.
System Rate:
The amount of power needed. This can be set in Kilowatts, Kilo Volt Ampere and Amperes
System Voltage:
Defines the amount of blocks in the system. It is possible to give a range.
Battery Autonomy:
The discharge time given in hours or minutes.
This is the oficial Battery Sizing App from CSB Battery.