How many watts does an air conditioner use? The watts required to operate an air conditioner can vary based on many factors, including the type of cooling system, the cooling output and the frequency of maintenance. What are some different types of window air conditioning units? A central air conditioner averages a usage of approximately 3,500 watts, and the operation of the air conditioning fan without use of the compressor averages 750 watts. Window air conditioning units can vary from 500 watts for small units to 1,440 watts for large units. A dirty air conditioning unit may operate inefficiently, using more energy to attain ideal comfort levels because of problems with airflow and with the ability for heat exchange to occur between refrigerant and the surrounding air. The electricity requirement for a Pinguino air conditioner varies depending on the model being purchased and can range anywhere from 950 to 1,500 watts. How many watts does a 5000-BTU air conditioner use?

Most 5,000-BTU air conditioners... What is a 13 SEER air conditioner? An air conditioner with a "seasonal energy efficiency ratio," or SEER, of 13 has a certain degree of efficiency in regards to its cooling output and energy...ac repair cost for car What is a temperature conversion chart for medical use?top central air conditioner companies How much does a new furnace cost?how much is a commercial ac unit What is the best indoor antenna for HDTV use? What are some tips for buying a Jump Starter air compressor? What services does Superior Heating and Cooling offer? On a laptop charger adapter it is written '65 Watt'. When I am using that laptop plugged into an AC socket, does it mean that it consumes 65 watt per second?

I think it actually depends on usage. But is the 65 watt the maximum power consumption for this laptop, or can it consume more than that? However, if it consumes more than 65 watt then the extra power must be taken from battery; but the battery also gets charged simultaneously and it remains fully charged. So doesn't it mean that the laptop uses less than 65 watt, because the maximum capacity of the charger is 65 watt? laptop power energy-saving energy Just to clear up something first of all; it's a minor terminology issue, but: does it then consumes 65 watt per second A watt is measure of energy per unit time, specifically: The unit is defined as joule per second However, this is a noted area of confusion, so don't feel bad about it at all! Typically a laptop will consume less power than its adapter will allow for. So in your case it will normally consume less than 65W. In normal operation it should not consume more power than the adapter sold with it can supply.

(You can test this by plugging the laptop into an energy usage meter/monitor (such as a kill-a-watt) and taking a reading while it is active.) You can get into situations you describe in the last part of your question if the charger is incorrect for the laptop and cannot supply sufficient power1. This situation is more common with mobile phone / tablet chargers. However, I am not certain of the behaviour if the laptop continued to draw more power than the (incorrect) adapter could supply. I suspect it wouldn't charge, may discharge the battery or may not, and the operating system may shut down after a warning. See also Using a higher wattage charger for my netbook 1: The last time I saw this was with a damaged charger, and I recall getting a warning notification to the effect that the battery would not charge. Disclaimer: dodgy recall, years ago, possibly incorrect etc You must log in to answer this question.Browse other questions tagged laptop power energy-saving energy .

Daft Logic > Information > Appliance Power Consumption Turn that TV off if you're not watching it! How much electricity is it really wasting?, and would it not be better to switch off the 4 lights in the room? The best way to compare the cost of running different appliances is to look at their power consumption, which is measure of how much power they use in Watts. The following list points out typical values for the wattage of some devices you would find in your home so that you can compare them. An important point is also to bear in mind the length of time for which the device will be used. For example an electric blanket may be used for 2 hours, but a hair drier for 5 minutes. Therefore the blanket uses 200W * 2 hours = 0.4kWh. The hair drier uses 2KW * 0.0833hours = 0.1666kWh. So using the blanket costs roughly 2.5 times as much as the hair drier. All values reported here are estimates, you should check the appliance labels or literature to find out the correct power consumption.