How long is the power plant?
To determine the operating time of a device, you need to know the power consumed by this device. This characteristic is always indicated in the technical documentation or on the power supplies, if the devices are equipped with them. Approximate characteristics of the power consumption of electricity by household appliances:
Notebook in charging mode: 50 - 80W
Phone in charging mode: 10 - 30W (this characteristic is often indicated on the power supply, if not, then multiply the voltage at the output of the power supply (it is always 5V) by the output current (for example, 3A) and get a charging power of 15W)
Refrigerator (in operation): 100 - 120W. At the same time, it should be taken into account that at the time of starting the compressor, the power consumed by refrigerators briefly increases to 1100 - 1200W
Computer (in download mode): 400 - 600W
LED bulb: 5 - 12W
To understand how many hours the charge of the power plant will last, you need to divide the declared Capacity Wh (of the power plant) by the power consumption, which often also needs to be calculated.
Example 1: If you connected a lighting system, for example, a camping site, consisting of 5 LED lamps of 10W each, to a power station with a capacity of 600Wh, then the charge of the station will last for 12 hours of continuous lighting (600Wh / (5 x 10W) = 12h).
Example 2: Phone battery capacity = 5000mAh (or 5Ah in other words) In this case, the typical battery voltage is 3.8V, respectively Smartphone battery capacity Wh = 19Wh (5Ah x 3.8V). A power plant with a capacity of 600Wh will be able to charge such a smartphone more than 30 times (600Wh / 19Wh = 31.5).
Example 3: Laptop battery capacity = 5200mAh (or 5.2Ah in other words). In this case, the typical voltage of the laptop battery is 11V, respectively. The capacity of the laptop battery Wh = 57Wh (5.2 x 11). A power plant with a capacity of 600Wh will be able to charge such a laptop more than 10 times (600Wh / 57Wh = 10.5).
