With this program, you can calculate the amount of battery you need for an emergency power system (UPS).

The results are calculated under normal environmental conditions (temperature, flow rate).

The
amount of current and power of the camera, according to the worst
conditions (WarmLight mode) is considered in the calculations, which
includes the most current.

The amount of power used by the DVR
device for the number of fixed hard drives (4/8 channels: 1 and  16 channels: 2) has been considered and calculated.

The default voltage is 12 volts.

The amount of battery is displayed in terms of current and the amount obtained is close to the best choice.

Be sure to see the relevant instructions in the field of UPS in the software help section.