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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
How long does it take to charge a lithium ion battery?
look at your manual!! if your manual didnt havae any info about that> restart your computer.> presss DEL while starting.>enter CMOS set up> then SYSTEM informatio.> that will display info about your battery>
note: dont change any thing at the set up.
How do you replace your watch battery?
I have a 93 SC2 DOHC. The battery is on the right side behind the fuse box. You need a metric set to undo the 3 screws. Theres one that attaches to the body, one to the bar that goes along the top, and theres one on the left side below the vacuum hose and air induction. After you've taken out those three, you should lift the whole thing out(battery and shroud) together. It's hard to take the shroud off before you lift the battery out. After that, you have to pry the shoud off the battery. The two terminals in the back make it hard. Then just go to any auto parts store and they'll give you a new one.
How do batteries get their charge?
You can rub the tips of the batteries together for 5 min and they will work for 15 more min.
I would like to tell you 3 tips about chargering your battery
1\ Your new laptop battery requires three complete charge/discharge cycles before use and achieving maximum capacity. It means the battery would have to be charged fully and then be discharged fully. Repeat it three times before starting to use the battery. By this way, battery's internal chemical materials can be activated and its internal chemical reaction can come into the optimal state. After the activation, the battery can be charged and used freely. But the battery will have to be discharged completely once a month so that the battery activity can be released by such deep discharge and battery life can be maintained.
2\ If battery is idle for over 3 months, it is also necessary to conduct 3 cycles of complete charge and dsicharge to ensure that the battery is activated. Please remember not to overcharge continually, or it will shorten the battery's life. Furthermore. It also needs three complete discharge/ charge cycles before starting to use it. Most users are used to using Alternating Current instead of a battery for power supply when they use laptops. Actually the battery needs to be used at least once or twice per month to release the battery power completely. Then fully charge the battery with AC power once. Please remember that it is always good for rechargeable batteries to use up the battery power before giving them a full charge. Because the li-ion battery used by laptop has its own laziness and would lose its activeness when being idle for long time. It needs to be reactivated.
3\ It is suggested to take out the battery from laptop when it uses AC power supply indoor to avoid having the battery get charged frequently. It is also suggested to shut down the laptop so that battery can be fully charged. Do not remove the AC power during charge. In addition, the power of battery can easily be used up and most laptops have only one battery.
COMPAQ 367759-001 Battery
http://www.global-battery.co.uk/laptop-batteries/compaq-367759-001.htm
For a common laptop, the best charge method is to turn off the laptop when its battery is being charged. The charge time will be shortened by 30% by this method.
How long do laptop batteries last before you have to get a replacement one?
It depends largly on the person using the laptop. It also depends on what the laptop is functioning like. If it is used for business and is used nearly daily I would recommend having a fairly nice one that has nice RAM, good Operating System, nicely functioning software, connection, etc. So if I was recommending a buy of a new laptop, either for regular or business use it would be either a Compaq, HP (Compaq is owned by HP, so there are only about 2 laptops on the site,) Dell, or a Sony Vaio. But considering your question, generally, if it is a home computer used maybe 4 times a week you probably want to get a new one in about 3 years. For business you should have a nice laptop anyway so, generally, I would say that probably every 3 years as well. You may need to upgrade earlier, though, so, in which case, I would say that you should get one with at minimum the following: 1 GB RAM Windows XP DVD/CD Rewritable Disc Drive (Optional) 3+ USB Drives 802.11g Wireless (Virtually any built in wireless card) Pentium 4 (Intel) 17+ inch screen Output to a monitor Etc.
Does the red wire go on the plus sign on a battery or the minus?
The red wire is Positive, (+) and the Black wire is Negative. (-)
How does electricity get into a battery?
A battery is made with chemicals that will react with each other in a particular way, and which, if you arrange things just right, will generate electricity in so doing. Thus, you do not put electricity into a battery, you put chemicals into a battery, and they make electricity.
Where was the battery first used?
There is some archaeological evidence that a battery was created in what is now Iraq, in the Parthian period around 250BC, although for what purpose it was used is not clear. Some experts have suggested that the current could have been used to electroplate jewellery.
The evidence consists of earthenware pots that were found to have the residue of an acid inside (possibly vinegar or lemon juice, both of which were available at the time), with a copper cylinder inserted from the top, surrounding an iron rod. The two metal elements were isolated from each other by a tar cap.
Speculation that a plant-based acid could be used as an acidic electrolyte to allow current to flow between the two electrical potentials of copper and iron was given strength when modern reconstructions of the design showed a single pot could provide a voltage of between 1 and 1.5 volts.
This 'battery' pre-dates the official development of the battery by Alessandro Volta in 1800 by two millennia. The term 'battery' was coined by Benjamin Franklin to describe several Leyden jars connected in series, although 'battery' is used today to refer to a single voltaic cell.
Where could one purchase rechargeable AA batteries?
Rechargeable AA batteries can be purchased both online and in stores. Online retailers include Amazon and USB Cell. Stores that cell rechargeable AA batteries include Walmart, Best Buy and drugstores.
Zinc-carbon AA =400-900 mah
Alkaline AA = 1700-3000 mah
:: I believe the above answer to be misleading/misguiding, the question is "How much mA does a single AA battery have?" not how many mAh.
in mA a single AA batter will have about 3.6mA to 4.0mA
it is important to distinguish mA from mAh, if one were to connect a device that required 4.0mA to a power source of 400-900mA this would likely destroy the device. mAh deals more with how long the battery life lasts.
What watch battery does an Armani mens AR-0237 take?
its the 364 which is the americano (621sw) you can pick it up at Target for like $4
Where can I get a Challenge cordless drill 21.6 battery replacement?
Many wireless drills use the same batteries. The batteries can be purchased at home improvement stores and they will be able to help pick out the best battery for the drill.
What type of current is produced by a battery?
Automotive lead acid batteries of 12 volts have six cells internally wired in series, each cell generating 2V. The positive plate is made of lead grid with a lead oxide paste coating and the negative plate is porous lead. Dilute sulphuric acid is the electrolyte. The lead acid battery produced a direct current or DC during a chemical reaction that turns lead dioxide to lead sulphate and sulphuric acid to water. During recharging the process is reversed.
What happen to the bulb when the copper wire connect to the battery?
if the copper wire (s) were conneting the battery to the lamp removing one of the wires would break a circut and the lamp goes out.
Can you replace a CR2016 battery with a CR2032?
Both batteries are the same diameter and the same voltage. The CR2032 is twice as thick as the CR2016 and has a larger ah capacity. If the extra thickness is not a problem, the CR2032 will be a good replacement for the CR2016. Some mounting methods are thickness specific and others are not!
How long does the nexus 7 battery last?
Screen on time is generally 3-5 hours depending on what apps you are running and the screen brightness. Stand by time can range up to a week using the Doze feature.
Why do batteries only supply direct current?
The nature of the chemical reactions taking place in a battery cause electric current to flow only in one direction.
How do you clean battery acid from wooden floor?
The best approach here is to consider neutralizing the acid. a solution of baking soda and water will do the trick. Battery acid is strong and acidic. Any damage occurred to the concrete will be permanent. The effects you see from the acid coming in contact with the concrete will vary based on how much acid there was and how long it was left to etch into the surface. Hydrochloric and muriatic acids will eat the concrete paste from the surface and leave anything from small mica to larger sand and gravel aggregate finishes. Neutralize it immediately when not intended!
The orange you see is called acid "burn" and any concrete "rust" removers you find on the market will not be effective at removing acid burn. Rust removers are good for rust but may damage, reactive or spread acid burn making it even worse.
Bleach will only remove a small portion of the stain and the scrub brush on concrete will definitely cause permanent damage to the concrete. Once concrete is "spot treated" with improper tools, chemicals or techniques it can be permanently damaged. Battery acid stains are not rust and are a chemical reaction within the concrete.
If you try Hydrochloric Acid, Hydrochloric will only remove a maximum of 60% of the stain. It is very dangerous and will permanently damage your concrete. The only reason HCL Acid works is because it dissolves the cement past and takes a small amount of stain with it. Battery Acid Stains can travel up to 2" deep into the concrete.
There is only one solution that will work- it is a new product called F9 BARC (Battery Acid Restoration Cleaner) made by Front 9 Restoration, Inc.
What is the metal that is used in car batteries?
That depends on the type of battery. There are nickel cadmium, lithium, lead acid,
How much does a phone battery cost?
Depending on the store, you could buy one for 10-40
It also depends on what phone you have.
The only reason someone would need a phone battery would be because they lost it or they broke it in some way.
The reason its unlikely for someone to buy a phone battery is because you can charge a phone unlike a normal battery.
Can you use and charge and battery at the same time?
I kinda wonder that myself...I am running my 12v LED computer fan from a 12v battery pack from my Ryobi drill with the charging cable inserted into the battery...it says its charging, and my fan is running...So, I will see if it doesnt explode...fingers crossed...
Do magnets have an effect on cell phone batteries?
Yes, definitely. many electronics work with magnets, and this can screw them up. WARNING: don't bring it close to a television, there will be permanent damage to the picture. the circuits in many electronics move etc. when magnets are brought close to them.
