A lot of people ask about the calories of the battery without considering the calories they are consuming with the battery, which are often much higher than the calories of the battery itself. If you are looking to lose weight, you should just put less mayo on the battery, or use low-fat mayo. And when you're getting that battery acid taste out of your mouth, do it with water, not sugary sodas. Show
About | Privacy | Marketing | Cookies | Contact us All rights reserved © ThisNutrition 2018-2022 Medical Disclaimer: All content on this Web site, including medical opinion and any other health-related information, is for informational purposes only and should not be considered to be a specific diagnosis or treatment plan for any individual situation. Use of this site and the information contained herein does not create a doctor-patient relationship. Always seek the direct advice of your own doctor in connection with any questions or issues you may have regarding your own health or the health of others. Affiliate Disclosure: Please note that each post may contain affiliate and/or referral links, in which I receive a very small commission for referring readers to these companies.  Humor #1, #2, #3 So, how many AA batteries would it take to power a standard adult human for one day? A Manganese/Alkaline AA cell it rated at about 2.4 amp-hours. If we assume 1.5 volts average this gives approximately 3.6 watt-hours (slightly optimistic). Since there are 3,600 seconds in an hour this is equivalent to 12,960 Joules. A human consumes about 2,000 calories/day. A dietician calorie is equal to 1,000 engineering calories. A calorie is equal to 4.2 Joules. Therefore this is equivalent to 2,000 * 1,000 * 4.2 = 8.4 * 106 Joules per day. Dividing one by the other you will need about 648 AA cells to power a human for one day. This assumes that the power from the AA cell will go through the same inefficiencies as the chemical processes in a human. (A human runs at about 20% efficiency chemical energy to mechanical energy). If we can circumvent this inefficiency we would only need 20% of this number of cells - say 130 cells. ---From: Ben Gebeau Related Pages on RF Cafe: - Battery Drawings - Battery Vendors - Li-Po or Li-Poly Battery Characteristics - Inside a 9-Volt Battery - How Many AA Batteries Would to Take to Power a Human? - Ray-O-Vac Ad, August 25, 1945, Saturday Evening Post
Advice Whether you’re talking EV power, battery capacity or charging, everything seems to be measured in kilowatts. So how do they relate to each other?22 Jan 2022 Electric vehicles are, in many ways, simpler than conventionally powered cars in that they have far fewer moving parts or things that can go wrong. However, anyone new to EVs would be forgiven for being a little confused at all the numbers relating to their power, battery capacity and how long they take to charge, as their respective units of measurement all contain a reference to kilowatts (kW). So what do the numbers and letters mean and how do you tell them apart? EV motor power (kW)The car’s power is fairly straightforward and refers to the electric motor’s maximum output. This is measured in kilowatts (or 1000 watts) just like a normal internal combustion engine (ICE). The higher the kW figure, the more oomph you'll get at the expense of energy consumption. As the following list shows the power ratings of EVs aren't too different when compared with similarly-sized and performing ICE vehicles.
Battery capacity (kWh)The total battery capacity of an EV is measured in kilowatt-hours (kWh or kW-h). This rating tells you how much electricity can be stored in the battery pack. It's a unit of energy just like calories and one kWh is equal to 3600 kilojoules (or 3.6 megajoules). Unlike kW, it is not a unit of power. Lower-powered EVs require a smaller capacity; for example the Nissan Leaf stores 40kWh and the Hyundai Kona Electric 64kWh. The Porsche Taycan Turbo S meanwhile stores a maximum of 93.4kWh. If all these cars had the same electric motor (and thereby the same maximum amount of power drawn from the battery at any given time) the Porsche would have the longest driving range because of its higher capacity. However, the Porsche has a 560kW motor that's designed for high performance and that comes at the cost of driving range, which is about 405 kilometres. But the Hyundai Kona Electric has a 557km distance range, even though it has a smaller battery capacity, because its motor is less powerful. The reference to 'hours' in the unit is a source of confusion for some, but it's fairly simple. The kilowatt unit is calculated as the amount of energy necessary to produce a kilowatt of power sustained for one hour. EV efficiency (kWh/100km)Like how ICE vehicle fuel consumption is measured in litres per 100km in highway, urban and combined settings, EV efficiency is rated by the number of kWh consumed over 100km. More economical EVs, such as the Hyundai Kona, consume about 14kWh/100km combined, while the larger and more powerful SUVs such as the Audi E-Tron will suck electrons at a rate of 24kWh/100km. It's worth noting that while petrol and diesel vehicles are more efficient on the open road, EVs consume less power in urban settings as stop-start driving allows for coasting and the recouping of energy through regenerative braking. Charging point power (kW)A kilowatt is also the unit of measurement and energy used for charging points. With electricity, a watt is simply the voltage (volts) multiplied by the current (amps), which means the higher the kW number the more electricity is being used to charge your car, which means quicker charging. This is why a 400v/50kW rapid charger will charge an EV far quicker than a 240v/2.4kW socket in your garage. For more on electric vehicles, see our guide below. COMMENTSHow much energy is in a car battery?A 12-volt battery has six cells, which produce 12.6 volts of electricity when the battery is fully charged. However, the amount of electricity that's produced will decrease as the battery is discharged. Your battery is considered to be discharged when each cell holds 1.239 volts or less.
How many calories is gasoline?A gallon of gasoline (about 4 liters) contains about 31,000 calories. If a person could drink gasoline, then a person could ride about 912 miles on a gallon of gas (about 360 km per liter). Considering that a normal car gets about 30 miles per gallon, that's pretty impressive!
How many AA batteries would it take to power a human for a day?A dietician calorie is equal to 1,000 engineering calories. A calorie is equal to 4.2 Joules. Therefore this is equivalent to 2,000 * 1,000 * 4.2 = 8.4 * 106 Joules per day. Dividing one by the other you will need about 648 AA cells to power a human for one day.
How many calories are in a gram of gasoline?Food Energy
For comparison, coal ranges from 4–7 kcal/g, gasoline is 10 kcal/g, and natural gas is 13 kcal/g. So fat is pretty much like gasoline. On one extreme, we could use a gallon of lard for our fuel.
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How many calories in a car battery
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