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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
Felony battery is a crime involving the intentional and unlawful striking of another person that results in serious bodily injury or involves the use of a deadly weapon. It is typically considered a more serious offense than simple battery, as it can result in harsher penalties, including imprisonment. The specific definition and punishment for felony battery can vary by jurisdiction.
How is electricity stored in batteries?
A battery consists of a group of 2 or more primary or secondary cells which convert chemical energy into electrical energy. One portion of the chemical energy is transformed into heat energy and the other portion into an electrical current.
Items that commonly contain batteries include smartphones, laptops, cameras, portable speakers, remote controls, flashlights, and electronic toys. It's important to properly dispose of these batteries to prevent environmental harm.
How does a battery store electrical current?
Batteries convert chemical energy into electricity. Batteries are made up of one or more separate sections, or cells, containing a chemical called an electrolyte.
Each cell has two electrically conductive electrodes immersed into its electrolyte. The electrodes are made of different materials; one releases electrons into the electrolyte, and the other absorbs them.
When an electrical device is connected to the electrodes, an electrical current flows through it and provides electric power for its operation.
Another answer
First we have to understand what a battery is made from. A battery consists of a number of separate cells. Each cell contains two different plates. The plates are held fixed and separated from each other. They are surrounded ("wetted" or "soaked") by a special chemical fluid or paste which conducts electricity.
One plate is called the "positive" ("+ve"), the other is called the "negative". ("-ve"). Every cell works because the plates react with the special chemical in such a way that an electrical current can be drawn off from the two terminals of the cell.
As current is drawn from the cell its plates - and the special chemical in which the plates are immersed - all gradually change their chemical composition. The result is that, as current is drawn off, the charge stored in the cell is reduced.
Another result is that the voltage given out by the cell drops. If nothing is done to replace the charge that has been taken from the cell then, eventually, a point is reached when no more charge can be taken out. That happens because the chemical composition of the plates and the special fluid can change no further. The cell is then called "flat" or "dead".
An even longer answer
"AA" and "AAA" are the international size references for two very popular kinds of cell. Size "AA" is bigger than size "AAA". These sizes are commonly used in flashlights, radios, MP3 players and personal amplifiers, etc. These cells each produce an output voltage of around 1.5 volts, direct current.
You can get them in two main kinds: "for-one-time-use" or "rechargeable".
To be able to explain how they work you will need to know what is inside them. If you have some knowledge of physics and chemistry that would come in handy too, but anyway here goes...
Any item with no moving parts which can produce a direct current flow of electricity is known as a "cell". Every cell contains two different plates. The plates are held fixed and separated from each other. They are placed in a special chemical fluid or paste which conducts electricity. One plate is called the "positive" ("+ve"), the other is called the "negative". ("-ve").
Each plate must be made of a different type of material to the other. The plates can then react with the special chemical in such a way that an electrical current can be drawn off from the cell. [It may be worth mentioning here that if both plates were made from the same material then no difference in voltage would be produced between them and no current could be taken from the cell. Nor could it be charged up.]
As current is drawn from the cell its plates - and the special chemical in which the plates are immersed - all gradually change their chemical composition. The result is that, as current is drawn off, the charge stored in the cell is reduced.
Another result is that the voltage given out by the cell drops. If nothing is done to replace the charge that has been taken from the cell then, eventually, a point is reached when no more charge can be taken out. That happens because the chemical composition of the plates and the special fluid can change no further. The cell is then called "flat" or "dead".
The actual types of materials used to make a cell determine the output voltage it produces. The physical size of a cell determines both 1) how much charge the cell can produce during its life and 2) how fast it can release that charge. (The bigger the cell, the higher is the total charge it can produce along with a higher charge release rate.)
There are lots of different types of AA and AAA cells. The name of the cell-type depends on the metallic elements and chemicals it contains. The name of the type of cell will normally be printed on the cell itself and/or on the packaging in which it is sold.
Common cell- type names are given to cells from the metals and chemicals used to build them, such as: "Zinc/Carbon", "Alkaline" (containing various elemental metals and/or metallic compounds), "NMH" (Nickel Metal Hydride), "Lithium Cobalt Oxide".
Many other sizes of cell are manufactured. Some sizes are available which produce a voltage that is not around 1.5 volts because they are made using different elements for the plates than the kinds used to make AA or AAA cells.
In general the output voltage depends on the materials which have been used to make the cell. Each lead-acid cell in a common car battery produces an output voltage of around 2 volts. Lithium cells produce around 3 volts.
Another short answer
For the invention of the battery we must thank the frog. In the 1780s the Italian physicist Luigi Galvani discovered a dead frog's leg would twitch when touched with two pieces of metal. Galvani had created a crude circuit.
The work was taken up by Professor Alessandro Volta. He created the Voltaic Pile, which is two discs: one made of zinc and one of copper, with a piece of cardboard soaked in brine between the two metal discs. This was the first "wet battery".
No we are not batteries, personaly I don't know specificly but I just know we are defenetly not batteries
YEAH WE ARE!!!!!!! HAMSTER WHEEL+ FAT PERSON+ TWEENKY= ENOUGH ENERGY TO POWER A SCHOOL!!!
How do you check the specific gravity of a battery?
To check the specific gravity of a battery, you will need a hydrometer. Remove the battery caps and draw some electrolyte into the hydrometer. Compare the reading with a chart to determine the specific gravity, which will indicate the state of charge of the battery.
Battery as in assault and ---- Aggression Battery as in my car's --- is flat Batterie My flashlight needs a new ---- Pile
How do you replace the battery in infiniti M35 key fob?
First you need to read the back of the fob. On the back is the number of the watch battery that you need to purchase. These numbers are important as the "button" batteries come in about 18 different sizes, and the size you need is usually sold in sets of two. After purchasing the battery, get a piece of white paper and put under your working surface...that screw is VERY tiny. Remove the screw and carefully remove the back of the fob. Inside you will find the batteries in a metal assembly. One can easily remove the battery with a flick of the fingernail. Carefully insert the new battery printed side up into the assembly, making sure that the spring metal is firmly seated against the side of the battery. Replace the fob back and re-insert the screw, making sure that the assembly is firmly reattached. Your local watch repair will perform this action for you for a very small fee. Walmart jewelry shop will do it for the price of the batteries.
You sure can! Lithium, in theory, can be recycled an unlimited amount of times and still be usable for creating more batteries. There are many areas and programs dedicated to recycling old electronics and the batteries that accompany them. Although it actually costs more to recycle a lithium battery than it takes to mine the lithium, recycling is still encouraged because demand for lithium is increasing and supply may shift in the future.
How do you remove rust on car battery?
Mix baking soda with water to create a paste, then use a toothbrush to scrub the rust off the car battery terminals. You can also use a wire brush or sandpaper to remove stubborn rust. After cleaning, apply a small amount of petroleum jelly to the terminals to prevent future rusting.
Yes, battery acid, which is typically sulfuric acid, is highly acidic. It can cause burns, damage to skin, and should be handled with care.
What is detonation out of battery?
"In battery" indicates that a rifle is ready to fire, a round is in place and the hammer is cocked.
"Detonation out of battery" indicates that the round went off before it was supposed to.
It could have gone off in the magazine, as it was being chambered, or as the bolt closed.
In a revolver, it would mean that a chamber in the cylinder that wasn't lined up with the barrel discharged.
Revolvers and multi barrel pistols that are charged with black powder are noted for this.
Black powder is concussion sensitive and a chamber can detonate when the chamber next to it was discharged.
Putting the wrong ammo in a gun with a tube magazine can also cause this.
The primer can be touched off by the point of the round behind it causing all the rounds in the magazine to detonate.
Is electromotive a physical or a chemical property?
Its a physical property as it is not involved with chemical reactions.
What is the chemical found in batteries called?
The chemical found in batteries is usually a combination of various chemicals, with common ones being lithium, nickel, cadmium, lead, and alkaline materials such as manganese dioxide and zinc. These chemicals undergo reactions to produce an electrical current.
In a desktop computer the battery is located on the PC motherboard. It looks like a silver button about the size of a quarter, in the center of a black circle of plastic. In a laptop the battery is quite a bit larger and is usually found on the bottom of the laptop near the back, underneath the screen hinge.
Because they have internal resistance. Current flow through this internal resistance produces heat, just like current flow through ordinary resistors does. The current can be from use of the battery or charging the battery (if it is rechargeable). Usually the internal resistance of a battery increases with age, meaning older batteries tend to run hotter than fresh ones.
How does the battery charger tell you the battery is charged?
generally speaking, there are several LED lights on the battery charger, when the light is red, it meas the battery is being charged, when the light turn to green or yellow, it means the battery is full charged
How were first electrical batteries charged?
They weren't, they were single-use. Pick the two correct metals, stick them close together in an acidic bath, and they'll deliver a voltage and a current until one of the metals is all used up. No charging required.
Can a 12-volt solar battery charger charge a 36-volt battery?
No, a 12-volt charger cannot charge a 36-volt battery. The electrical potential difference across the leads of a charger must exceed the electrical potential difference across the terminals of any battery it is expected to charge. And 12 volts is much less than 36 volts.
WHY?
The 36-volt battery would require at least 39.3 volts to get to a float charge. This would charge the battery to 80% quickly, and then take a logarithmic period of time to finish the battery. To actually charge the 36-volt battery correctly would require roughly 43.2 volts, but if we can't get 39, this is irrelevant.
The 12-volt charger has no chance.
The answer above is correct; there is no way the 12-volt charger can charge a 36-volt battery. However, the voltages given apply only to lead-acid batteries. They would be different for nickel metal hydride or lithium cells. You still need a charger with more voltage that the battery voltage in any case.
To measure battery current, you can use a multimeter set to measure current in series with the battery. Connect the multimeter in series between the battery and the load to measure the current flowing from the battery to the load. Make sure to select the appropriate current range on the multimeter to avoid damaging the instrument.
Potato battery or lemon battery?
You can make a battery out of both a lemon or a potato - if you want to see how just do a net search on "potato battery" or lemon battery.
In science we have been conducting an experiment to see which of the fruits/vegetables creates a larger flow of electrons- for us it was the potato so it may make a better battery than the lemon.
u make it by putting a penny in a lemon and a nail on different sides, then use a battery meter to see how much electricity the object has.
How do you replace burglar alarm battery?
If you're relatively handy, this is not a difficult task. The hardest part will be opening the enclosure the control panel sits in.
A typical residential burglar alarm will have a main CPU or control panel usually located in a closet. Depending on the brand, it will be securely closed with a lock or screws. In either case you'll have to get it open. Unscrew, pick the lock, drill the lock, etc. Once inside, you'll see two wire leads (usually RED and BLACK) connected to what looks like a brick shaped object. Sometimes it'll be rectangular and other times it'll be almost cube like. That will be the battery. Carefully pull the two leads off of it, go to your nearest source for specialty batteries (batteries plus?) and purchase compatible model. If the alarm system is disarmed, the beeping will go away after your replace the battery and it charges to capacity. The most important factor will be the size of the connectors and the voltage of the battery (usually 12V). It does not have to be the same brand.
How long does a AAA duracell battery last?
A AAA Duracell battery typically lasts between 3 to 5 years when stored properly in a cool, dry place at room temperature. The actual usage time of the battery will depend on the device it is used in and how frequently it is used.
A battery burns out when its chemical reactions are depleted and it can no longer provide the necessary voltage to power a device. Over time, repeated charging and discharging can also degrade the battery's capacity, leading to its eventual failure.
Can you use NiCD battery in place of NiMH battery?
Yes, as long as you use an NiCd charger, but you really shouldn't. NiMh has twice the capacity of NiCd and it is less expensive. NiMh also contains no toxic materials so it is better for the environment.
