1. What is a watt-hour and what is the difference between it and a watt?
Watt-hour can be expressed by the symbol Wh, which is usually used to express the size of the energy consumption of electrical appliances or the size of the capacity of the battery, as an example, you can learn the capacity of your lithium iron phosphate battery from its instruction manual, assuming that the capacity of your battery is 100Wh, in the case of the battery’s depth of discharge is 100%, the battery can be used to 100Watt power to power your equipment for a continuous period of one hour. The battery can power your device continuously for one hour with 100Watt.
Watt is a unit of power, usually denoted by the symbol W, which is used to indicate the rate at which a device does work, and is fundamentally different from the watt-hour. However, you need to know the number of watts of a device in order to calculate the watt-hours of a device, and watts are derived from the phase of volts and amperes, and 1W equals to 1VA in DC circuits, but in AC circuits, this equation is not valid, which is something you need to pay attention to.
2. What is the relationship between kilowatt-hours and watt-hours?
Kilowatt hour is commonly used as the symbol kWh, which is the same unit used to express the energy consumption of an electrical appliance or the capacity of a battery, there is no difference between the two in essence, but the order of magnitude of the two units is different, you can realize the conversion between kilowatt hour and watt hour by the following formula, i.e.
1kWh = 1000Wh
This conversion formula you can often use to, for example, your lithium iron phosphate battery battery capacity of 1kWh, according to the above formula can be your lithium iron phosphate battery capacity of 1000Wh, through such a conversion, you can solve the problem due to the order of magnitude is not equal and can not be calculated.
3. What is the role of the working hours of the equipment in the calculation of watt-hour and how to get the working hours of the equipment?
The working hours of the equipment is one of the essential data for calculating the watt-hours. Only by getting the working hours of the equipment can you know the watt-hours of the equipment, which is something you need to pay attention to.
To get the watt-hours of a device, you can record how long it takes for the device to consume a certain amount of power next to the device, and this time is the watt-hours required to consume this amount of power, however, this process is very time-consuming and laborious, and the recorded data is not so accurate.
Of course, nowadays, a lot of equipment have equipment operation monitoring system, which can record the running time of the equipment and let you know the recorded data through the app, in this way, you can easily get the working hours of the equipment, which can save your time and energy to a certain extent.
4. The process of calculating the watt-hour
After getting the operating power of the device and the operating hours of the device you can calculate the watt-hours of your device, you need to specify the physical quantities first, i.e., the operating hours of the device (h), the operating power of the device (W), and the energy consumed by the device (Wh), then you can calculate the watt-hours by the following formula
Wh = W x h
For example, let’s say your battery has been running at 50watt1 for 3 hours, then your battery has provided 150Wh of power to your device in those three hours.
5. The role of the watt-hour calculator
The Watt-Hour Calculator saves you time and effort by using a specific algorithm to quickly calculate the results you need from the data you provide. By calculating the watt-hours of your device you will know how much power your device consumes, which will help you to control the electricity consumption in your home and thus save some of your electricity bill, which is very important for you.
