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Batteries
Batteries are sources of chemical energy that are used in circuits to provide electrical energy for a wide range of useful devices. Any questions and answers regarding batteries or other power supplies would be welcome here.
4,818 Questions
Is the lemon battery better than real electricity from power plant?
Lemon battery is better than real electricity from power plant. Lemon battery saves money than paying electricity bills per month.
How long can a tv run on a 12 volt battery?
That depends on the Amp-hour capacity of the battery and the power requirement
of the TV when it's on.
If the TV isn't designed to operate on 12 volts, then it won't run at all, no matter
what the capacity of the battery is.
How serious is a disturbing the peace 415 misdemeanor and will it bar you from being hired?
This should not bar you from being hired. It is not a serious misdemeanor. Most jobs will overlook misdemeanors when they are considering candidates.
What is the importance of the fruit battery's study?
To show students the chemical reaction that occurs in a fruit battery
How long do most UPS backups last on-battery?
"UPS battery backups have a variety of times for which they last. If you're running a server room on a few UPS backups, they will last at least a half hour to an hour. If you're running one for a desktop, the minimum time it should last is at least 45 minutes."
Can you make a fission battery?
You sure could, but no one ever will, at least not commercially, because the amount of money needed to buy a powerful, portable neutron source, plus a large enough supply of fissionable material, is outrageous. Not to mention that the majority of said items are exclusively sold to government labs, oilfield services, and the military. And, the risk of radioactive contamination and environmental exposure far outweigh any increase of power efficiency. I'm afraid that we're going to be stuck with the good old-fashioned chemical batteries for awhile.
Check out the related link I added below if you'd like some more information on portable neutron sources.
Why cant positive charges be used to create current?
Actually, they can. In metals, it's common for an electrical current to be carried by electrons, and that's because electrons are light (low mass), and move around easily. But electrons are by no means the only charge carriers - for example, in a liquid, currents may be carried by positive ions; and in a semiconductor, either by electrons (which have a negative charge) or by holes (which have a positive charge).
Why do you have to connect one wire to each end of the battery for the circuit to work?
The battery pushes electrons out one side, and attracts them back to the other side. Without a closed circuit, the electrons can flow for a brief time, but they would quickly accumulate on some connected object. Since electrons repel one another, they will quickly come to the point where no further electrons can get into an object.
What is present inside a dry battery?
lemon battery is a battery used in experiments proposed in many science textbooks around the world.[2] It is made by inserting two differentmetallic objects, for example a galvanized nail and a copper coin, into an ion bridge (for example a lemon, a potato or paper soaked in salt water or acid). The copper coin serves as the positive electrode or cathode and the galvanized nail as the electron-producing negative electrode or anode. These two objects work as electrodes, causing an electrochemical reaction which generates a small potential difference. The origin of lemon and potato batteries is unknown.
The aim of this experiment is to show students how batteries work. After the battery is assembled, a multimeter can be used to check the generatedvoltage. For a more visible effect to be produced, a few lemon cells connected in series can be used to power a standard red LED. Flashlight bulbs are generally not used because the lemon battery cannot produce the amount of current required to light such bulbs. Digital clocks can work well, and some toymakers offer small kits with a clock that can be powered by two potatoes or lemons.
The energy for the battery comes from the chemical change in the zinc (or other metal) when exposed to an acid. The energy does not come from the lemon or potato. The zinc is oxidized inside the lemon, exchanging some of its electrons with the acid in order to reach a lower energy state, and the energy released provides the power.[3]Energy source
In current practice, zinc is produced by electrowinning of zinc sulfate or pyrometallurgic reduction of zinc with carbon, which requires an energy input. The energy produced in the lemon battery comes from reversing this reaction, recovering some of the energy input during the zinc production. CalculationsAssuming that zinc and copper electrodes are used (such as a copper coin and a zinc plated nail) then a lemon could generate approximately 0.9 Volts.The current depends on the size of the electrodes used and the strength of the ion bridge.
As an example, if we make some assumptions about the acidity of the lemon and the size of the electrodes, a current of 0.0003 amperes could be produced.
volts x amperes = watts
1 lemon: 0.9 volts x 0.0003 amperes = 0.00027 watts
Flashlight bulb: 2.4 volts x 0.5 amperes = 1.2 watts, or about 5,000 lemons
Halogen bulb: 12 volts x 0.83 amperes = 10 watts, or about 37,000 lemons
Red LED bulb: 1.7 volts x 0.0005 amperes = 0.00085 watts, or three lemons in series
ReactionsIn a lemon battery, both oxidation and reduction occur. Consider the case of a zinc-copper battery; this battery is similar to the original "simple voltaic cells" invented by Alessandro Volta.[4] At the anode, metallic zinc is oxidized, and enters the acidic solution as Zn2+ ions:Zn → Zn2+ + 2 e-.At the copper cathode, hydrogen ions (solvated protons from the acidic solution) are reduced to form molecular hydrogen:2H++ 2e- → H2.
VariationsPotato battery with copper and zinc electrodes
Potatoes,[5] apples, sauerkraut, or any other fruit or vegetable containing acid or other electrolyte can be used, but lemons are preferred because of their higher acidity.[6] In potatoes, for instance, the electrolyte is phosphoric acid, while in lemons it is citric acid. Other non-rusty metal combinations (such as magnesium-copper) are more effective; for example, using a magnesium strip instead of zinc increases the voltage from 0.9 volts to 1.3 volts with magnesium. However, zinc and copper are usually preferred because they are reasonably safe and easy to obtain.
Popular CultureIn the game Portal 2, GLaDOS's A.I. was embedded into a potato-battery-run computer.In the NCIS Season 7 episode "Power Down",Forensic Tech Abby Schito uses lemons to power her stereo.
In the Bones Season 6 episode "The Blackout in the Blizzard," Angela and the other "squints" build a massive potato battery array in an attempt to power a cell phone. Illustrating the pathetically low output of such a system, it is successful for only a handful of seconds while using dozens of potatoes.
What charges the battery on a ATV?
On the end of the crankshaft is a set of electrical windings that turns as the crankshaft turns ( known as the rotor ) . There are staionary windings mounted in the engine casing that do not turn ( known as the stator ) . this makes up your alternator and this charges the battery as the engine is running . Hope that answers your question .
What cause batterie ligh to stay on after changing batterie and alternator?
Check volatages everywhere, there could be a short somewhere.
Also, check the tension on the belt that drives your alternator. That belt might be slipping due to a faulty tensioner and not spinning the alternator fast enough.
How long can a car sit with a dead battery before it does damage to the car?
having a flat battery should not damage a car however in newer cars you might have to get some things re-set like the imobiliser,ecu etc
Does a car radio work without a ground?
No, but they are sometimes grounded via frame vs wire.
Most car radios use negative as common with ground. But caution should be taken therefore make reference to the manual before installation. This is because some radios have a low resistance on the wire marked negative which affects operation of the radio and results in impaired output.
What may be the cause of energy to drain from a new battery?
Computer modules are supposed to "go to sleep" about 15 mins after you shut off the vehicle. If they don't, they can drain the battery. See related links on how to find the bad module.
The battery itself may have a dead cell which will cause it to drain overnight. If that is the case the only fix is to replace the battery even if it is a new battery. It may also be you have light that is on pulling power from the battery. Under hood, trunk, glove box, dome light, brake light, etc. You could also have a relay that is sticking.
Explain why you never touch both terminals at the same time when working on a car battery?
I can be a shocking experience. When someone grabs both terminals, they are completing the electrical loop. It's not the voltage that will get you, it is the Amperes. Electricity always follows the path of least resistance.
Is the battery in an air hogs vectron ultralite replaceable?
The battery is replaceable, but I have not yet found any more information than this: It is a six volt, five cell, one hundred ten Milli-amp hour Nickel Metal Hydride battery. The battery is eighteen thirty-seconds of an inch high, about three-quarters of an inch wide, short ways along the bottom, and one and three-sixteenths inches long, long ways across the bottom. I think the plug is custom made. Even though they (Spinmaster/ AirHogs) discontinued it, try them first.
The battery is located in the central motor core in the center of the Vectron. (charge the battery first before you do anything.)
To get it out, remove the three screws holding the orange lid down.
Next, find the plug on the Vectron core where the charger goes in.
Remove the lid. (it will catch a bit around the switch, but do not worry. Push the lid toward the switch while pulling up gently near or under the switch. It will come up.)
Now find that charge port again.
With that port facing you, there is a thin black rectangle just to the left.
It will have two thick wires coming out of it. Remove this plug by finding the spot where two golden square leads go into it. Put your fingernail there, and slide the plug straight out from the plug horizontally parallel to the charge port.
The battery is now disconnected.
Flip the power on. The red led will flash once if the battery is disconnected.
It will keep blinking if the battery is not disconnected. TURN THAT SWITCH BACK OFF AFTER THIS TEST.
If it is truly disconnected, next take a flat head screwdriver and gently pry up the circuit board from the three white columns where the screws for holding the lid were.
Lift the board. You will see a black piece of foam rubber.
Lift it out and save it. Remember it's orientation. You will need it again.
The battery can now be lifted out. Put in the new one the exact same direction the original was facing.
Now put down the foam square over the new battery.
Put the circuit board back on the white columns.
Plug the power cord from the battery into the circuit board power connector. (RED on the LEFT.)
Angle the lid towards the switch and the charge port, then put it on with it still angled toward the switch and charge port. When the switch and plug are back in the proper lid openings, you can lever it back down over the rest of the board.
Now insert the screws.
YOU DID IT! That wasn't THAT bad now, was it?
Can you put anything in a 12 volt battery to help it hold charge?
No. Your best bet is to keep the battery clean. Wipe it down often. Dirt will conduct electricity from the battery terminals and slowly discharge it. If the battery is on your garage floor, make a simple wooden tray to put it on. Batteries find concrete a nice path to discharging. In a car, ensure that all lights are off when the car is turned off.
In the winter, use an extension cord and a utility light with a bare bulb and leave it turned on on the driveway or street underneath where the battery is. Warmth will greatly increase cranking power. In the old days when we had a naturally-occuring cold period of 25 years, I would crank the car engine for one revolution just to create a little heat in the battery. After about 20 seconds, I would start the car. This often made the difference between the car going and the car staying right where it was.
Can you run a12 volt pump off 24volt batterys?
100% overvoltage to an electrical device is never a good idea. It would have
to be a premium, heavily designed pump to put up with that for very long
without burning up. You probably have a lot of money invested in the pump.
Now you need to spring for the battery that it's designed to operate on.
