Batteries

BL-5F batteries power cell phones. If your cell phone is mysteriously quiet and you suspect that it could be something other than a dead battery, you can check the battery by grounding it just as you…

Most people may now know that when any small electronic device or battery gets wet, one of the first things to do is to stick the wet object inside a sealed container with some dry rice. The purpose…

Nickel metal hydride batteries are electrochemical batteries or, in other words, they produce electricity as the result of chemical reactions between the materials that make up their positive and…

A sealed battery, more properly known as a valve-regulated lead-acid battery, or VRLA, is a type of lead-acid rechargeable battery that doesn't require much maintenance. These batteries are made to…

The Samsung Code cell phone, with its large color display and full keyboard, offers up to six hours of talk time before its battery needs a charge. If you seldom use the phone, it has up to 300 hours…

DeWalt and other makers of portable battery-powered drills and other tools use rechargeable nickel-cadmium battery packs to energize the tools. Over time, these battery packs wear down and may no…

Batteries make it possible to carry portable power to almost any location. Electronic and computing devices use battery power as both a primary and backup source of power. If a battery does not…

Lasko makes several space and personal heaters for home and office use. None of these heaters are battery operated. Even Lasko's smallest personal heaters require more power than most batteries can…

Users of the HTC Desire may find that this Android-powered smartphone suddenly turns off when the battery is weak. Knowing how to look for how much battery power is left on the HTC Desire is a simple…

Sizing a switchgear battery system is typically done with automated computer software, but it's possible to calculate it by hand using the peak discharge rate and the total amp-hour rate. Battery…

The Craftsman 19.2 NiCad battery is a battery for certain Craftsman power drills. All such batteries are rechargeable, but, as is the case with many such batteries, they might not provide power even…

You can replace a defective CMOS battery with a new one and reset the hardware settings so that RAM and other components are recognized by the computer's basic input/output system. If you power on…

The crusty film that appears around your batteries in an electronic device is corrosion. While the appearance may seem foreboding, often corrosion only affects the actual batteries and the terminals…

A careful look at the labels on household batteries reveals an interesting difference between different kinds: for the same battery type, such as AA, C or D, some are rated at 1.2 volts, and others…

Your BIOS, or basic input/output system, setup settings can be erased if your CMOS battery fails. The CMOS battery does not typically fail all at once, and you can experience other errors as it begins…

NiMH batteries are rechargeable batteries that behave somewhat differently than zinc-carbon or alkaline single-use batteries. Older gadgets that were not designed for rechargeable batteries may not…

The standby time on a Sprint Overdrive mobile hot spot represents the amount of time that the device can stay powered on when not connected to a power outlet and when not in active use. The average…

A magnetic field can have unpredictable effects on an electronic device, as most electronic components are not affected by such a field. It is certainly possible for a strong magnet or a rapidly…

Sealed lead acid batteries are batteries that are commonly used for cars, all-terrain vehicles (ATVs), scooters and golf carts. While most car batteries are mounted under the hood inside a battery…

Nanotechnology is the art of building machines and devices molecule by molecule. Several past and current nanotech research projects focus on building batteries that will hold their charge longer and…

Before you toss a set of batteries in the garbage, consider the repercussions your actions might have for the planet. A single battery takes centuries to decompose and even then, might contain…

Verizon LG phones use four major classes of battery technology. The only one in wide use in new devices as of October 2011 is lithium ion. Your choice of battery is limited by the model of phone. If…

The mobility on your Sony W910i cell phone is powered by its battery; your phone may not turn on or even drop calls when power issues occur. The battery must be installed and charged correctly to gain…

Some models of Honeywell thermostat do not have a connection to your home's electrical supply and use a pair of AA batteries instead. You might want to access the batteries when the battery status…

The Yamaha Raptor is an all-terrain vehicle, also known as an ATV. ATVs are used for a variety of recreational activities, from riding off-road to competing in races and other events. The size and use…

All MacBooks are designed to be operated on AC electricity from the power adapter, without making use of the internal battery. In these situations, the battery is used only for recharging. However,…

The Panasonic CF-W7 is a personal notebook computer sold under Panasonic's Toughbook brand. The CMOS battery provides the power needed to store data in the CMOS memory when the computer is not turned…

eMachines netbook personal computers come with a rechargeable battery pack. eMachines recommends calibrating the battery to maximize its life, a process also referred to as conditioning. A properly…

A battery hydrometer measures the concentration of sulfuric acid and water in each cell of a battery, in a measurement of specific gravity. This is a direct indication of the integrity of the anodes…

The Cub Cadet is a type of small tractor made by the International Harvester company. Compact and useful for smaller yards and even on farms, the tractor can do its fair share of work. However if you…

The LG Ally operates on the popular Android platform. The device features a 3.2-inch touchscreen and the ability to run multiple applications. The Ally has a rechargeable lithium ion battery that is…

NiMH stands for "Nickel Metal Hydride," a rechargeable battery technology invented by American inventor Stanford R. Ovshinsky in the late 1980s. NiMH batteries are a variation on earlier NiCd, or…

When you're playing Pokemon Ruby, or any other Pokemon game for a GameBoy system, the game will eventually present you with an error message stating that your internal battery has run dry. With Ruby,…

The Hot Bodies Ve8 is a high performance remote-controlled car made by the Hot Bodies HPI-Racing division. The car is a descendant of the 2008 International Federation of Model Auto Racing World…

The T105 battery is made by the Trojan Battery Company and is typically used to power golf carts. It's a deep-cycle battery that produces 6 volts and has 225 ampere-hour capacity. A battery can only…

The Huawei Ascend is an Android smartphone with multitasking abilities. If you close out of apps by pressing the "Back" or "Home" buttons, some apps will minimize and continue running in the…

Many countries require cell phones to be disabled while aboard aircraft. The HTC Droid Eris has a built-in "Airplane Mode" feature. When your Eris is in airplane mode, all of your phone's radio…

An AC electrical circuit may be stepped up in voltage without using batteries or any other extra external power supply. Because AC electricity changes polarity on a specified frequency, this allows an…

Batteries generate direct current (DC) electricity through reactions between chemicals and metals. Different battery formulations, such as lead-acid, carbon-zinc and lithium-ion cater to a variety of…

Two common components in electronics are the resistor and the capacitor. When connected, they form a resistor/capacitor -- or RC -- circuit. RC circuits are powerful and have diverse applications. By…

Interfacing a solar cell to to a NiCad battery is typically an elementary electronic circuit process that can teach budding electronics enthusiasts how sunlight energy may be converted to electrical…

It's important to teach 3rd-grade students about the human body. Education is key to helping children develop healthy habits that will keep their bodies strong and healthy as they grow. Engage…

The first papers utilized plant materials and cloth fibers. According to Robert C. Williams Paper Museum, historical records show that paper was invented in China by Emperor Ts'ai Lun in 105 A.D, but…

Exide Industries originally began as an import house in 1914 before becoming the company it is in today's battery manufacturing industry. Batteries for industrial energy storage to mobile equipment is…

During third grade, children make large gains in the developmental areas of attention, responsibility, memory and stamina. Prior to third grade, projects are more likely to be created as a whole…

Third-graders have many questions about the world around them, and a science project is a very effective way to find some of the answers. An experiment on the germination of seeds can help students…

A resistor can go bad for a number of reasons: poor manufacturing, normal aging, voltage overload or physical trauma. Regardless of the reason, a bad resistor can cause failure of an electrical…

Although LeapFrog offers several interactive Leapster learning products, "Tag" refers to a line of children's reading products separate from Leapster. LeapFrog has designed two Tag products to help…

The types of batteries available today are numerous, and with an increasing number of different chemical bases from which to choose, deciding which battery is best for your needs can be daunting. The…

An electrical current is a fairly simple concept that can be a bit difficult for kids to understand. Basically, an electric current can be described as the flow of electricity. Since this can seem…

Acronyms, or abbreviated names, appear to be everywhere; the concept is to make it easier to remember, so you don't have to say or write the complete name. Battery manufacturers' are no exception to…

Make a homemade battery using Clorox bleach and water. This battery will be powerful, but will last only up to one week if you don't refresh the water supply. Be careful to keep children and pets away…

Deep cycle is one of the three primary types of batteries, the other two being starting and marine. A deep cycle battery differs dramatically in use and construction from a starting battery, while a…

Electricity is generated by the movement of electrons. A voltaic battery creates electrical energy using electrodes and a chemical solution called an electrolyte, which contains positive or negative…

When the television remote is no longer doing its job, it's time to take out the old batteries and put in the new. Your job, however, is not complete until you've determined the type of battery and…

Connecting power supplies in series lets you increase the amount of voltage you can obtain to power your electronic system. This can save money and time if neither of your power supplies can supply a…

A battery is an electrical storage device. It holds an electrical charge by chemical means. It can convert that stored energy into current. Most people are familiar with common battery sizes such as…

Non-rechargeable, dry cell batteries are categorized in several ways: by letter designations, by voltages and by applications. However, a chemical classification that differentiates dry cell batteries…

Batteries are generally electrochemical cells, which convert chemical energy to electrical energy. They mainly consist of an anode, a cathode and an electrolyte. There are two major categories of…

Alarm systems are an efficient means of ensuring security in your home. Installing one can be easy if you follow simple instructions from the alarm system manufacturer or from do-it-yourself sites.…

Knowing when to use batteries in series can help you design electronic products or save you in emergency power situations. Using batteries in series often depends on whether you need more voltage or…

Uniden manufactures cordless land-line handsets that use rechargeable batteries. Like all rechargeables, they wear out over time. There are many different models of Uniden cordless phones, but they…

Every year, millions of batteries are used by millions of people. When batteries lose their power and stop working, they are often disposed of in the trash. However, depending on the chemicals used in…

Megaliters, abbreviated ML, and gigaliters, abbreviated GL, are units of volume in the metric system. Metric prefixes are added to the base unit to describe units of different magnitudes. The metric…

Tea lights allow you to set the right type of atmosphere for your home or social gathering. Designed to be lit and then left, these candles give off just enough light for a romantic dinner, without…

If you need to make a 24-volt battery and only have two 12-volt batteries, you can connect the two batteries together to make one 24-volt battery. The two 12-volt batteries are connected end-to-end in…

Dry cell batteries, those common, convenient, easily obtainable, low-cost power sources that power numerous parts of our lives, are marvels in small packages. From their invention to modern day…

Car alarms are essential security components of your vehicle. They are sensitive to impact or any disturbances to the vehicle due to sensors embedded in the car body. Most new cars come with an alarm…

Battery-powered electric heaters operate by connecting a wire element between the positive and negative power source terminals, similar to regular electric light bulbs. The wire's resistance…

Science projects are great opportunities for kids to get up close and personal with scientific principles they usually only read about in books. Making their own battery is a safe and educational…

For many, unfurrowing the sails and setting a course into blue water is the epitome of sailing. Heading out for calm waters and stout winds is a pastime that gets you out of the urban rat race.…

An IR transmitter is an electronic device that emits energy in the form of an infrared spectrum. An infrared transmitter has many applications, the most prominent being its use in a remote control.…

Tape recorders provide cheap and interactive educational activities for students that teachers cannot provide. Tapes are important for use in foreign language and history classes. Tapes allow teachers…

Button batteries are small single cell batteries usually between five and 12 millimeters in diameter. They are classified according to a wide range of attributes and may be compared and contrasted…

Electricity is the flow of subatomic particles called electrons, and its energy can be harnessed for an almost instantaneous and convenient source of power. Electricity's contributions to modern…

Burglar alarm systems ensure the security of you and your property. Automobiles can be stolen or burglarized and there is often a need to secure them with alarms. The systems are available in auto…

Harvesting the sunlight for energy has been a growing method and a renewed natural alternative to other energy sources. Solar cells are devices that convert sunlight energy into electricity using the…

The CardMaster language master/card reader is an automated classroom assistant that helps you perform teacher tasks, even if you must be out of the room. With the device you record your question and…

Electrical cells and batteries are electrochemical devices that convert their preserved chemical to electrical energy. There are two types of batteries -- rechargeable batteries and disposable…

Batteries are made to store energy. There are several components that make a battery, but the core minerals are what make a battery work. These minerals make the chemistry that allows a battery to…

Electricity is usually measured in kilowatt-hours (kWh), which is the number of kilowatts used in an hour's time. This figure is used to calculate your energy consumption and the amount billed by the…

Assessing the efficiency of a pump can be difficult without the proper relationship between power and effect. One way to offer such a relationship is by estimating how many megalitres of water is…

Understanding wiper motor wire colors is a very difficult task. If a motor simply had two wires, one for the positive and one for the negative, it would be no problem. Unfortunately, many wiper motors…

Batteries operate by generating electricity using a copper and a zinc electrode, which reacts to an electrolyte, sulfuric acid. Potato juice contains water soluble chemicals that can cause a reaction…

An acidic citrus fruit, such as a lemon or a lime, can be converted into a battery by inserting two 2-inch nails — one copper and one galvanized (zinc) — into the fruit. The amount of…

Lemons, limes and grapefruits are wonderful power sources for the human body. They give people energy to complete tasks that they might have before them. However, due to the acidity level in their…

Most people's concept of a battery does not typically include fruit, but in fact, you can transform lemons into a little power plant to make a lemon battery for a science project. The voltage output…

Gel and AGM (absorbed glass mat) batteries are different types of lead-acid batteries. In gel batteries, the addition of silica turns the liquid electrolyte into a gel. In AGM batteries, a…

The kilowatt hour (kWh) is a unit of energy equivalent to 3.6 million joules (J) or 3.6 megajoules (MJ). It is typically used to measure the consumption of domestic electricity, and in the case of…

The Chrysler 300 is a luxury style sedan designed for cruising in comfort. However, the engine cannot perform its job without a working battery. Locating the battery in your Chrysler 300 will be…

When an iPAQ battery is not holding a charge for a prolonged period of time, recalibrate the battery. Changing the battery standby settings, causes the battery to reawaken from the settings it's…

The GMC C4500 is adored by its owners for its Duramax engine and extended cab features, but without a working battery, it cannot serve very much of a purpose. Installing a battery in your GMC C4500…

The building blocks of digital logic circuits are called gates. These gates act like on and off switches. If a voltage is present at an input or output, it is called logic 1 or "high." If no voltage…

A solar cell powered electric battery charger can be a helpful and practical addition to any household taking steps towards going green. Solar cell battery chargers can work with any standard format…

Power stations are able to utilize many different fuel sources to generate electricity. While a finite resource, diesel is currently (2010) readily available as a fuel for power station and a large…

Sometimes you just need more battery voltage. You may need to light more LED Christmas lights, or you may have an electronic device that requires more voltage than your battery can put out. One of the…

Casio's FX 2.0 calculator is used by students of all ages across the world, primarily those required to perform basic equations with complex numbers in algebra, statistics and geometry. It is powered…

A diesel generator is a worthy addition, but it should be only an addition. It should not be relied upon as the main source of power. The main source of power should be the public utility grid, since…

Babies need visual and audio stimulation for proper brain development. According to Sean Brotherson, Family Science Specialist at North Dakota State University, "three critical activities that…

Alkaline batteries are a type of dry cell battery. Dry cell batteries consist of a cathode and an anode. Within the dry cell is an alkaline electrolyte, which gradually lessens the corrosion of the…

Whether you use your calculator daily or occasionally, eventually you will need to change the batteries. Batteries naturally lose their charge even when not in use. Casio FX-7400G Plus has two battery…

Hydrogen fuel cells have been powering satellites and spacecraft for well over 40 years. Just recently hydrogen battery power has slowly found its way into conventional applications. Scientists are…

Handheld lasers and handheld flashlights are available for purchase in stores. They both run on batteries and give off a beam of light, but there are several important differences between lasers and…

There are essentially three common types of car batteries on the market, according to the Speedace website. These include gas-recombinant absorbed glass mat batteries, wet maintenance-free batteries…

The Peukert number is a value that represents how efficient a battery can hold a charge. When a Peukert number is close to 1, it means that the battery loses very little charge. The higher the Peukert…

Lithium-ion cells (batteries) remain the source of power for most laptop computers on the market. This type of cell is employed because it is one of the most versatile batteries available.

A deep-cycle battery is quite different from its counterpart, the conventional car battery. You can find deep-cycle batteries in boats or powering solar energy systems, both large and small.

Solar energy, like all other forms of energy, can be converted from one form to another for storage purposes. Solar panels, for example, are used to convert radiant energy from sunlight into electric…

A laser pen or laser pointer is a small, hand-held device that emits a narrow laser beam when a button on the pen is pressed. Laser pens are battery powered and can come in red or green versions.…

The Califone Cardmaster is an educational device for children in elementary schools, bilingual reading programs, and English as a Second Language (ESL) and adult education programs. The device…

Mini tape recorders come in handy for people who want to keep actual writing to a minimum while getting the most detailed notes possible. There are several types of mini-recorders to choose from,…

If you would like to help your kids learn science at home, you can help get their attention with home experiments. One possible energy project that you might want to undertake with your kids is the…

Series and parallel circuit connections can be made in thousands of different ways and with all types of electronic components. Most electronic circuit designers first learn how to use resistors,…

Digital circuit design, the use of "logic gates" to design electronic circuits, allows you to create electronic circuits that can make decisions. A logic gate will produce one of two states at its…

Information can be transferred from one computer to another by various hardware devices. The choice of the equipment or device used depends on the user requirements, the speed of transfer, the data…

If you have a few quarters lying around at home and some extra vinegar in the pantry, you can make a homemade battery. An excellent way to demonstrate basic electrical concepts to students, this…

Battery amperage life, the number of ampere-hours that a battery can supply, is dependent on a number of factors. One of the most important factors is the average electrical current level your battery…

Understanding voltage drops and resistors is fundamental to almost every electronic concept, and that's because almost every circuit contains a resistor, and across every resistor is a voltage drop.…

The TI-84 Plus is a scientific graphing calculator designed by Texas Instruments, one of the U.S.' largest electronics manufacturers. Originally released in 2004, the TI-84 Plus is one of the most…

If you are looking for an easy, safe science experiment for children, either to teach them how electricity works or for the elementary science fair, constructing a dry cell battery is a good project…

Solar cells are ideal projects for the classroom. They produce a low current and a low-voltage, so they are relatively safe when used properly. With solar cells, you can easily construct a circuit…

The laws of thermodynamics are three natural laws, discovered by three different physicists, which govern the exchange of heat and energy in physical systems. A physical system may be the size of an…

A dry cell battery converts chemical energy into electricity. The chemical reaction produces electrons, which then collect at the negative terminal of the battery. When there is a connection between…

While an analog multimeter has the same basic function as a digital one, you'll find differences in its use. To read resistance, you must first set the meter for the right range and zero it every time…

Electrical grounding and earthing are both types of grounding. A grounded circuit could be a wire that is literally connected to the ground, or it may be a circuit with no voltage. Grounding is…

Zinc and silver oxide are the main constituents of a silver oxide battery. Silver oxide acts as the positive electrode and zinc the negative electrode. Therefore, it is also called "silver-zinc…

If you're a recreational vehicle owner, knowing how long your battery will provide power is important. And that's because your battery will powers all your electrical appliances and electronic…

Lemons make us pucker, but the same property in lemon juice that creates a sour flavor--acid--is what gives lemons battery power. The acid in lemons works like regular battery acid to create an…

Building a crystal radio has long been a popular selection for science projects .One of the things that makes crystal radios so interesting is the fact that you don't need to worry about hooking them…

Solar batteries typically comprise multiple solar cells connected to semiconductors and solar panels. (Most commercial solar batteries incorporate conducting and solar cell components made mainly from…

Operating a manual defibrillator (cardioverter) requires familiarity with the equipment at hand. There are many types of manual defibrillators, each with differences, such as what the monitor face and…

Many of the cordless tools and appliances we use are powered by rechargeable nickel-cadmium batteries, typically abbreviated as Ni-Cd or Ni-Cad. Ni-Cd batteries are often used in solar-powered garden…

Hydrogen and oxygen are components of many compounds. You can extract them from these compounds with a variety of methods, such as electrolysis. Electrolysis is the process of splitting a compound…

A suctioning machine is an portable apparatus used in the medical field for aspirating fluids from a person's airways and mouth. There are many parts that go into the manufacturing of an electric…

Rust consists of various iron oxides that form on the surface of many iron alloys. Electrolysis is a process that uses electricity to split the rust compounds into iron and oxygen, thus cleaning the…

Whether you are recording an important lecture or a review for a final exam, you can use a mini tape recorder to help you with your studying. With the option of listening back to important information…

Batteries have undergone almost continuous refinement and improvement since the technology was first developed. Over the years, major battery constructions have included lead acid, carbon-zinc,…

Batteries can be wired in an electrical circuit so that their voltages add together. This is necessary when you don't have a single battery that provides the voltage needed for a particular electrical…

Rust is caused by electrochemical corrosion. When water, oxygen and metal create an electrical circuit, the metal becomes oxidized and rust forms. Rust is not only an unattractive condition…

DC batteries are often called "dry cell" batteries; however, this term is not really correct. DC is actually an abbreviation for direct current. The most common form of DC batteries are made up of a…

Zinc chloride batteries are steadily becoming a thing of the past. While they are more efficient than the carbon zinc battery, they pale in comparison to the popular alkaline battery. However, just…

Alkaline batteries supply many electronic devices with power. Since the invention of the alkaline battery, there have been many further battery developments. Nickel-cadmium (nicad), lithium-ion and…

A water (HHO) molecule is composed of two atoms of hydrogen and one atom of oxygen. A hydrogen fuel cell produces an electrical current when it combines hydrogen and oxygen to form water as a…

An alkaline battery is so named because it uses an alkaline electrolyte of potassium hydroxide and electrodes composed of zinc and manganese oxide. This is in contrast to zinc-carbon batteries, which…

A water (HHO) electrolyzer may be any device that splits water into hydrogen and oxygen. The simplest type of water electrolyzer involves adding an electrolyte to the water, allowing the water to…

Batteries can be constructed using common household materials. It's all a matter of chemistry: When acids are present in a solution, ions are produced. When two dissimilar metals are introduced into…

Commercial burglar alarms consist of complex electronic components that must be serviced and repaired by professionals. However, you can demonstrate the principles behind these devices with a very…

The Flip and similar digital camcorders are ideal for students to use in the classroom because they are small, versatile and durable. These models don't require extra cords or software to work, and…

Rechargeable batteries come in different forms, depending on what they are used to charge. Over the years the components of rechargeable batteries have become both smaller and less dangerous, allowing…

In order to generate electricity, there must be a power source and a complete circuit. When using a citrus fruit to create electricity, these rules still apply. In a simple experiment using a citrus…

This makes a great example of a circuit that shows electricity can make heat. More fun than lighting a light bulb and just as easy.

Like many people I love my potatoes baked twice with butter, sour cream and chives. But did you know that they also produce electricity? This is a great science project for kids to show how nature…

The dry cell battery is one of the most used types of batteries in the world. You can find dry cell batteries in many types of electronic devices or anything that uses triple or double-A, C, D, or…

A potentiometer, or "pot" for short, is also known as a variable resistor. Variable resistors are used when it is necessary to dynamically change the resistance in order to control the current in a…

Ferrous metals such as steel and iron are the most common elements in Honda engines, but aluminum is also used. Honda's gas mileage ratings are improved by the amount of plastic used in the engine.…

Having students build a circuit experiment is a visually interesting way to teach them about electrical current and circuits. This circuit experiment uses a potato as its battery, though you can use a…

A battery-operated tea candle is a lighting fixture that looks like a tea candle, but that creates light using an LED bulb instead of an open flame. There are many advantages offered by…

So the neighborhood parents and kids want to have a haunted house for everyone to enjoy on Halloween, but there's not much money in the pocketbooks? No problem. You can make a haunted house on a…

It's the ultimate in greener living--powering your home with citrus fruit! Of course, the world's not quite ready for a lemon-powered household, but it is possible to make a lemon powered clock. It's…

Spring and summer storms can pop up out of a clear blue sky. You may only have seconds to react. Planning ahead for sudden storms will save time when weather warnings are issued.Tornadoes are not…

Create an electric battery out of a lemon. The acidity of the lemon juice is an important component. Batteries are made by placing two different metals into an acidic solution.