Rechargeable batteries, and the battery charger, are the answer for those who hate the idea of finding environmentally friendly ways of jettisoning the worn out batteries from their remotes, flashlights, smoke detectors, calculators, and any number of other battery operated conveniences.
Rechargeable batteries and the battery charger are also an answer for those who stop to tally up the cost of replacing all the worn out batteries in their lives on a regular basis.  Those who understand the concept of “true cost”, aka “full cost” battery pricing know that they are paying more for their batteries than they really should have to, and the chance to rid themselves of that particular waste of their hard-earned dollars certainly makes a battery charger worth a look.
Why Disposable Batteries Cost So Much
The biggest reason that batteries are more expensive than a reasonable profit on their components and assembly cost should make them is that, because in the environmentally unfriendly world of the past, millions of disposable batteries were left to corrode in landfills and leak their toxic chemicals, including mercury and lead, into the soil and water.  Now that the environment is a major concern, all those chemicals have to be cleaned up, and that cleanup has to be paid for.
The true, or full cost, of your current stock disposable batteries includes extra charges to offset the environmental cleanup necessary from the improper disposal of the batteries of yesteryear.
But charging to the rescue of your pocket book are those inseparable sidekicks, the rechargeable battery, and the battery charger.  As soon as you make the switch to rechargeables, you’ll eliminate both the recurring costs of replacing your old disposable batteries and your contribution to the ongoing battery disposal problem.
Your Battery Charger Alternatives
If you think you’re ready to make the switch, take the time to educate yourself on battery charger alternatives.  The different types of battery charger have now been available long enough to have developed a track record, and you can do some comparing before you buy.
The introductory model of the battery charger is the simple charger.  Your wall sockets operate on AG, or Alternating Current; the simple battery charger pulls electrons from your AC wall socket, transforms them into DC, or Direct Current, and sends them to the battery to charge it.  The drawback to this system is that rechargeable batteries have a finite capacity for electrons, and once it is reached, they will be damaged if the charging continues.  In rare instances they may cause a fire. For more info see http://www.lastbatteries.com/ on Batteries.
Up one level of battery charger sophistication is the timer charger.  As its name indicates, it will shut down the charging process after a preset amount of time; but if it is used to charge batteries of limited capacity, damage remains a possibility.  With batteries of greater charging capacity, on the other hand, a timer charger may shut down before charging is complete.
The ultimate battery charger is the intelligent charger; it detects exactly how much charging capacity a specific battery has, and delivers not one more or less.  When the charging is complete, an intelligent battery charger continues to keep the battery topped up with a tiny stream of electrons as long as the battery is connected to it.  What more could you want?

Like other portable consumer electronic devices digital cameras use batteries as their power source. In this article we will describe different battery technologies and their cons and pros. Armed with this knowledge you will be able to take into consideration the battery used when purchasing your next camera.
A camera usually supports just one type of battery either a disposable battery or a rechargeable one. The exception is cameras that are powered by standard AA, AAA or similar batteries. In most of these cases disposable and rechargeable batteries can be used interchangeably.
There are two battery types:
<li><strong>disposable batteries: </strong> can only be used once. They usually have a standard size and shape such as AA, AAA and so on. You can buy these batteries at most stores and once they are empty you simply dispose them (please help keep the environment safe and clean by disposing batteries only to special battery disposal containers). </li><br><li><strong>rechargeable batteries: </strong> can be used multiple times. Some rechargeable batteries have a standard size and shape such as AA, AAA and so on. Such standard size batteries can be used anywhere that a disposable battery can. More often than not however rechargeable batteries have a proprietary shape and are compatible with just a few specific cameras. Once a rechargeable battery is empty you can place it in a special charger that will recharge it. The time it takes to recharge a battery, the number of times it can be charged and the life time of the battery are dependant on the technology used to build the battery. </li><br>
There are pros and cons to using disposable or rechargeable batteries. The main advantage to using a disposable battery is that you can always buy a few to have with you to replace the ones that are empty and you can always get one in a store close-by in case you are stuck with empty batteries. The disadvantages to using disposable batteries are the cost of buying new batteries every times your batteries are empty, the capacity (in most cases a disposable battery will not last as long as a good rechargeable battery). On the other hand rechargeable batteries require only one purchase. When the battery is empty you can simply place it in its charger and after an hour or so you will have a fully recharged battery. The disadvantage is that if you run out of batteries during a photo shooting session or somewhere away from home or a power supply you can not just buy another battery. The solution to that problem is to buy one extra battery and to always carry it with you fully charged.
If your camera uses standard size batteries such as AA or AAA you can have the advantages of both disposable and rechargeable batteries. You can always use disposable AA or AAA batteries with the camera but you can also get a rechargeable AA or AAA battery and use it when convenient.
<strong>Rechargeable batteries technologies:</strong>
Different technologies are used in building rechargeable batteries. Look at the battery itself to find out what technology was used in most cases it will be written on a small sticker on the battery or somewhere on its packaging. The following are the most common technologies and some of their pros and cons:
<li><strong>nickel cadium: </strong> one of the oldest technologies. These batteries are inexpensive, they can be recharged fast and many times before they lose their capacity. On the downside they have a low capacity and have a “memory effect” – a “memory effect” means that the battery can not be recharged to its full capacity unless it is first fully discharged. This can be problem since in most cases you will want to make sure your battery regardless of its current state is fully charged before going on a photo shooting session. Some charges solve this problem by first discharging the battery and only then recharging it to its full capacity. </li><br><li><strong>nickel metal hybrid: </strong> this technology is an improvement of nickel cadium. These batteries capacity is much higher up to 50% more. Although it still has a “memory effect” it is less noticeable than in nickel cadium batteries. On the downside these batteries can be charged less times before losing their capacity and they also discharge faster when not in use. </li><br><li><strong>lithium ion: </strong> A new technology that solves many of the nickel technology problems. Lithium ion batteries have a higher capacity than even nickel metal. They have no “memory effect” at all (and thus regardless of their current state they can always be recharged to their fullest capacity). The downside is that they are more expensive than nickel batteries. </li><br><li><strong>lithium polymer: </strong> the latest technology. These batteries have all the advantages of lithium ion and more. They have an even higher capacity and can also be easily manufactured in any shape or form. This allows for much smaller and lighter high capacity batteries and for batteries shaped to better fit the camera design. </li><br>
In conclusion when choosing a camera and considering what batteries it uses you should first make a choice between disposable and rechargeable batteries. If you choose to get a camera that uses rechargeable batteries you should try to choose a battery that uses the latest technologies like polymer or lithium unless you have some special considerations.

In the world of car battery testers, Midtronics stands out as the manufacturer of unique and cutting edge technology for the automotive industry. Midtronics has been producing car battery testers for 20 years and continually leads the market in innovation. Their products are even required for battery warranty decisions across the nation at automotive dealers, auto shops and car battery dealers. What makes a Midtronics battery tester unique in the market is the conductance based technology that it uses in its car battery testers.
Conventional car battery testers employ the BCI adjustable load test to measure if a car’s battery is usable. They measure the voltage drop when an applied load of ½ the CCA rating of the battery is used. In order for BCI load testing to be accurate, the battery must be at room temperature and cannot be discharged. If the battery to be tested is in a discharged state, a car battery charger must used and this adds considerable time to the testing process. However, Midtronics battery testers employs conductance technology that makes the process of battery testing much faster and a lot easier.
What is conductance and why is it so great? This is a common question we receive about Midtronics battery testers. Conductance measures a batteries ability to move electrical current through the internal structure. This method produces a direct relationship to a battery and its power. A tiny AC charge is sent through the battery that produces a voltage response. This is what the battery tester measures. One of the chief advantages to this method is that as a battery ages and corrodes, conductance can determine if a battery can still be used. Basically, what this means is an automotive technician can test a battery without waiting for the battery to cool down to room temperature or have to wait 6 – 24 hours to recharge the battery. With a Midtronics battery tester, the battery can be tested immediately and accurately because of the conductance technology.
Ease of use is another great advantage to the Midtronics battery tester. A manual load test requires a trained operator than judge if the battery is even testable. Also, the test must be performed accurately within the proper time and then the data needs to be referenced in complex charts. This data needs to be interpreted as well. By comparison, a Midtronics battery tester does all the work. Just input some simple data into the unit, hook it up and press the start button. Anyone can use and accurately measure batteries with Midtronics battery testers and it takes the guesswork out of using load testing charts and complex testing.
Another great advantage of a Midtronics battery tester is the car battery can be safely tested while it is still in the vehicle. All it requires is the engine must not be running and the battery terminals should be reasonably clean. A few conditions may make it necessary to actually remove the battery. If the terminals are located remotely away from the battery being tested, the battery can read weak on the instrument or if the battery is installed in such a way that you cannot correctly connect the Midtronics battery tester to it. In most vehicles and fleet trucks this is not the case and the tester can be easily hooked up to the battery without having to remove it.

Imagine the next time you join a discussion about acer battery laptop. When you start sharing the fascinating acer battery laptop facts below, your friends will be absolutely amazed.
To discharge, simply run your device under the laptop battery’s power until it shuts down or until you get a low battery warning.  Many, maybe most, laptop users run their machines on AC power most of the time, figuring that it’s better for the battery.  If used on main power, the battery inside a laptop will only last for 12-18 months.  Consider removing the battery from a laptop when running on fixed power.  run your laptop using battery power until it switches off) then fully charge your battery once again.  Those chips use battery power quickly but also tend to get too hot for the laptop’s tiny case.  The length of time the battery can power the laptop is, obviously, important.
To get maximum performance from your laptop battery, fully optimize the laptop’s power management features prior to use.  Keeping your laptop clean Disconnect the AC power and remove the battery pack before cleaning.  Playing a DVD movie uses more battery power than usual, but any laptop should be able to play a movie through to the end.  - Let the computer run under battery power until the laptop turns off.  turn all battery power settings to Never and set the power scheme to Portable/Laptop.  Plug your laptop or battery charger in at my house and you’re using solar power.  Actually, many factors affect the amount of time that a laptop battery can deliver power before it must be recharged.
sony vaio laptop battery Sony battery,sony laptop battery,sony notebook battery,sony vaio …  Injection molded plastic battery cases add strength, guarantee proper fit and are colored and textured to match the laptop or notebook.  Some notebook battery vendors advertise “refurbished” cheap laptop batteries at steeply discounted prices.  Don’t get caught with a drained battery and be prepared with a notebook battery from Laptop Travel.  -  computer accessories, computer hardware, toner cartridges, laptop batteries, notebook drives, battery, toner, inkjet supplies, ink, toshiba notebook parts, pc components, office supplies .  - computer accessories, computer hardware, toner cartridges, laptop batteries, notebook drives, battery, toner, inkjet supplies, ink, toshiba notebook parts, pc components, office supplies .  Consider replacing laptop or notebook battery when you notice substantial decrease in its run time.
Some notebook battery vendors advertise “refurbished” cheap laptop batteries at steeply discounted prices.  Sony-laptop battery notebook more results from battery mart, motorcycle, batteries, laptop, notebook, battery.  Shop for and buy the best laptop batteries, notebook battery chargers, hi capacity li-ion battery at your source for the best computer.  Volt external laptop battery pack for longest run time, always use the 12v notebook battery in conjunction with your fully.  Discount hp notebook batteries hp laptop battery f1739a f2019a f2024b f3172a f4809a hpqr3000 1-877-586-9241 toll free notebook batteries.
You can see that there’s practical value in learning more about acer battery laptop. Can you think of ways to apply what’s been covered so far?
But to be able to run your laptop longer without a recharge, it is important to be proactive in managing your battery life.  When you buy a replacement laptop battery, you’re just getting a new set of cells to run down.  If the laptop does not need the battery it should be run to about 40% charge and stored in a cool place.  So if your laptop runs hot – let the battery run down to about 40% and take it out.  Most laptops also run at a higher voltage and clock speed when plugged in, and at lower settings when using the battery.  Although this can improve performance, these laptops typically run much hotter and have a significantly reduced battery life.
You searched for information on battery and laptop computer.  Your new compaq laptop battery comes in a discharged condition and must be charged before use (refer to your computer manual for charging instructions).  Of course, once you decide on the laptop computer battery you need, you will want to receive it right away.  Plug battery pack into DC input of your laptop computer which is located in backside of laptop usually.  Toshiba laptop battery laptop batteries, laptop battery, toshiba laptop battery, batteries for laptop computer.
It is normal for a laptop battery to become warm during charging and discharging.A charged battery will eventually lose its charge if unused.  This laptop had a dead battery on arrival and it would not charge.  To do this, simply insert the battery into your laptop and allow it to charge fully.  Charge your laptop’s battery the night before you leave on a trip.  Since typical li-ion laptop batteries have 375 charge cycles, having a fully charged battery inserted will put unnecessary charge cycles.  Charge your laptop battery or get a spare one.
If you’re buying the laptops on a one-time grant, imho you absolutely, positively should buy (at least) a second battery on that grant.  When those laptops are new, it’s a simple matter to buy a spare battery.  If you want to save a few dollars then please buy a better MPG car, not a refurbished laptop battery.  When that happens, it is time to buy a replacement battery for your laptop.
Now you can be a confident expert on acer battery laptop. OK, maybe not an expert. But you should have something to bring to the table next time you join a discussion on acer battery laptop.http://www.accessory-computer-store.com/acer-battery-laptop/

Depending upon the model, a notebook battery usually lasts from 1 to 8 hours. However, with efficient battery usage, an hour or two of battery power can significantly be increased. You can save battery power by using the built-in battery saving modes and by following good notebook battery-saving practices.
Built-in battery-saving modes are Stand By and Hibernate. In the Stand By mode, open applications are stored in the RAM, the hard disks power down, the monitor switches off, but the processor goes on running. When you again perform some activity of the mouse or the keyboard, then the hard disk powers up, the monitor switches on, and the data from the RAM is activated, restoring your notebook exactly the way you left it.
The Hibernation mode is used when the notebook is left unattended for a long time. The open applications are stored on the hard disk, which subsequently powers down, the monitor turns off, and the processor turns off going in for hibernation. On soft rebooting like a restart or wake up on LAN, the processor turns on, the laptop wakes up, and the same exact settings are restored. Both these modes should be used to conserve battery power. You can preset your preferences in the settings of your notebook, so that in case you doze off, or leave the device for a coffee or a snack, the notebook automatically goes into any one of these power saving modes.
Following battery-saving practices can also save notebook battery power. You should always adjust the monitor controls to suit the room lighting conditions. Dimming the contrast and brightness saves battery power besides providing relief to your eyes. Auto-save and auto-update features of applications start in the background without your knowledge and these should be disabled. External devices consume a lot of battery power, hence the usage of external mice, monitors, keyboards, optical drives, videocam, digital cameras, or any other device connected to the PC Card slot, VGA/ FireWire/ USB port should be avoided.
Increase the RAM memory, if an extra slot is available, as this puts fewer burdens on the hard disk, which consumes a lot of battery power. Avoid multimedia games while you are running your notebook on battery power. Similarly, avoid music or movies. Copy the CD/DVD on the hard disk and play it from there, instead of the optical drive. Disable WiFi and Bluetooth. Built-in wireless cards should also be disabled. Decrease or set to mute the notebook speaker volume. Turn off all preprogrammed scheduled tasks. All unused open applications should be closed. The general guideline is that when your notebook is on battery power, you should perform only such operations, which are the need of the hour. Rest of the applications can be performed, when your notebook is connected to the mains.
Keeping good care of the battery also prolongs its life. To maximize performance of nickel-metal hydride batteries, they have to be completely drained off before they are recharged. However, lithium-ion batteries do not need cycling/ conditioning, and they do not suffer from memory effects. Hence, they need not be fully drained off before recharging. When the notebook is not in use for an extended period, the battery pack should be removed to avoid battery leakage. Before removing the battery pack, you should charge it fully and then remove it, as all kinds of batteries should always be stored in a fully charged state. Do not store your battery pack along with metal parts, as this will short-circuit your battery.
Utilizing the built-in battery saving options and other means, you can significantly add one to three hours more in the total capacity of your notebook battery. Sometimes, in critical situations, like an important meeting, this extra hour of notebook battery power can help you clinch your desired deal.

Did you ever go to jumpstart your car, and notice that you can barely see your battery underneath all the gunk?  This ‘gunk’ is actually battery corrosion, which is formed by acid condensation.  Since this is formed by acid, a basic chemical solution will do the cleaning trick.  Battery acid is actually very easy to clean away with a common household item- baking soda!  But still, precautions must be followed.  This article will inform you step by step how to clean the battery while keeping safe.
First, you will need to gather supplies for this project.  Most of these items you may already have in your home.Safety glasses or gogglesBox of baking soda Adjustable pliers with insulated handles Screwdrivers with insulated handles A small, stiff-bristled brush (an old toothbrush will work just fine!) Assorted small open-end and box wrenchesSmall metal or plastic scraper Special battery tools, including a cable puller and cable terminal cleaning brushes A turkey baster or small funnel All-purpose household cleaner in a spray bottle Sponges or clean cloths A source of ample clean water such as a garden hose or a large bucket and sponge Rubber gloves for protecting your hands
There are a few safety tips to keep in mind when getting ready to clean the battery. First of all, you safety glasses and gloves must be worn to protect your eyes and skin from sulfuric acid that can linger in the corrosion deposits.  Also, this material can eat away at your car’s paint, so keep it away from that as well.
Because the amount of dirt and corrosion on batteries may differ from one another, battery cleaning will vary, so some of the steps below may or may not need to be performed.  Sometimes, to thoroughly remove severe corrosion and dirt, you may even need to remove the battery from the vehicle.
First, scrape off any white or greenish corrosion deposits with the stiff-bristled brush or small metal or plastic scraper. Next, use the solution of baking soda mixed with water, approximately one heaping tablespoon to each pint of water.  Carefully apply it to the outside of the battery and its cable connections with the turkey baster or small funnel. Then, you can use your brush to work the baking soda solution into the heavily corroded areas.  If you find that the cable clamps or terminals are badly corroded at the battery, you can disconnect them for easier cleaning. For this, you may need to use pliers, assorted wrenches and a small battery cable puller to disconnect them.  You should disconnect the negative first, followed by the positive.
Then, use your battery cable scrapers or brush to remove the corrosion from the terminals, battery posts and hold down clamps and brackets. Flush these parts with your baking soda solution to rid them of any trace of corrosion.  After this, wash the outside of the battery, the cable ends and the hold down parts with a liquid cleaner in a spray bottle.  After that, use a sponge or rag to get off any remaining dirt or grease.  After everything is clean, dry off the battery and all its parts with a dry rag or cloth.
The final step is just reinstalling any part that was removed and tightening everything so it is secure.  Reconnect the battery, positive cable first.  You’re done!  You’re battery is now safe and clean.

As the name suggests a Batteryless Flashlight works without any requirement of batteries. One can also call it as the forever flashlight. These types of flashlights need to be shaken back and forth for few seconds and they will give light for many minutes, sometimes even hours. The main features of these Batteryless Flashlights are  1) Never needs any batteries or bulbs 2) Now with magnet and tether strap 3) Compact and water resistant.  Perhaps the biggest feature is that these flashlights are rechargeable at any time.  · Magnetic Batteryless Flashlights  The product Magnetic Batteryless Flashlight is the newest technology among the batteryless flashlights. One just has to shake the flashlights for 60 seconds and you will get up to 2 hours of light from this magnetic batteryless flashlight. These flashlights have three super bright LEDs which emit bluish white light that helps us in viewing clearly in the dark.  There is a high field strength magnet inside these flashlights, that slides back and forth inside a coil of copper wire, as we shake it to generate electric power. This power then gets stored in a small capacitor. The stored energy in the capacitor then powers the high brightness white-light LEDs.  It is prudent to turn the switch off at the time of shaking the flashlights for charging. If the switch is not turned off then pulse with the power spikes coming from the coil can be seen in the LEDs. The operating switch of these batteryless flashlights is durable and intrinsically safe. These flashlights lights are very light in weight and are completely designed to be waterproof. They are also fully portable.  · Dynamo type Batteryless Flashlights  Another type of batteryless flashlights is of dynamo type. These were the oldest technology among the batteryless flashlights. These types of flashlights have little fold-out cranks and we need to wind on for a while so that we can use the light again. In Dynamo type flashlights, by winding the cranks for a few minutes, a sector gear starts to move causing a tiny pinion gear to spin which drives a PM dynamo. The dynamo generates electrical energy which is used to light the LEDs in the batteryless flashlights. For years there have been dynamo types flashlights around that the world those work by squeezing a lever handle. Dynamo type battery free flashlights are quite reliable than the ordinary battery lights.  · Batteryless Flashlights review  The Batteryless flashlights are mainly used for emergency purpose. These flashlights sometimes come with built in FM radio. The main advantage of this Batteryless flashlight is that they are absolutely maintenance free. These flashlights can be stored for long periods of time without the worry of leaking batteries. In case of battery powered flashlights they often have their battery contacts loose & dbecome dysfunctional, but the batteryless flashlights don’t go dead as you are miles away from home late at night.  The main disadvantage about these batteryless flashlights is that they are not as bright as most other battery powered flashlights, but that’s a small price to pay as they are infinitely brighter than any other battery powered flashlights who’s batteries are drained of energy or their bulbs are broken or burned out.

In both science and in technology, a battery is used as a type of device that is used to store energy, making it available for use in an electrical form. They consist of electrochemical devices, including one or even more galvanic cells.
Baghdad Batteries are thought to be the first known in history, dating back from sometime between the years of 250 BCE and 640 BCE. The modern battery began with the Voltaic pile, which was developed by Alessandro Volta, an Italian physicist, in 1800. As of a 2005 estimate, the battery industry generates, no pun intended, around 48 billion dollars in annual sales.
Batteries can be divided into two main categories, rechargeable batteries and non-rechargeable, or disposable, batteries.
Disposable batteries are also known as primary cells. They are intended for a one time use only, to be used until the chemical changes used to induce its electrical current supply have been finished. Their common usages include smaller, more portable devices that have either a low current drain or are used away from any alternative power source.
Rechargeable batteries, also known as secondary cells, have a longer usage life since they can be recharged after their power has been drained. You can do so by applying an externally supplied electrical current. This causes a reversal in the chemical changes that occur during the battery’s use. These devices used to do this are commonly known as rechargers or chargers.
The ‘wet cell,’ or lead-acid, battery is the oldest form of the rechargeable battery that is still in today’s use. This battery contains a liquid found in an unsealed container that requires the battery to be kept in an upright position. The area in which it is used must be well-ventilated so as not to cause the ventilated, hydrogen gas to display its explosive qualities.
The lead-acid battery is quite heavy, although its cost to manufacture is low and the high surge content levels allow it to be a commonly used battery in places where its weight and handling ease are not of any concern.
The most common form of a lead-acid battery is the car battery.
A gel battery is known to be an expensive lead-acid battery type, containing a semi-solid electrolyte that is used to prevent spillage.
The portable types are considered to be ‘dry cells.’ They are sealed units that are useful in appliances such as cell phones and laptop computers. These types of cells also include, nickel-cadmium or NiCd, nickel metal hydride or NiMH, and lithium-ion or Li-Ion, listed in the order of their increasing power density and also their cost.
Both disposable batteries and rechargeable batteries come in various standard sizes. This is so they can easily be used in a wider amount of appliances. The most commonly known types of batteries are the A-series, including A, AA, AAA, and AAAA. Also known are B, C, D, F, G, J, and N. Other variants include 3R12, 4R25, PP3, PP9, and the 996 and PC926 that are used in lanterns. There are many, many more less common battery types, and their usages vary greatly.

Batteries may contain harmful metals and chemicals such as nickel cadmium, alkaline, mercury, nickel metal hydride and lead acid, which can contaminate the environment if not disposed properly. For example, when batteries containing cadmium is used in landfills, they will eventually dissolve and release the toxic substance that can seep into water supplies, posing serious health hazards for the population. This is why recycling batteries has become so important because it helps prevent pollution, and also saves resources.
The Recycling Process:
First of all, the batteries to be recycled are sorted according to chemistries such as nickel-cadmium, nickel-metal-hydride, lithium, alkaline etc. The combustible material, such as plastics and insulation, is then removed with a gas fired thermal oxidizer, which is the first step in the recycling process. Most recycling plants have scrubbers where the gases from the thermal oxidizer are neutralized to remove pollutants, producing clean, naked cells that contain precious metal content.
The metal in the batteries are then heated to liquefy, after they have been hacked into little pieces. Black slag left by burned out non-metallic substances are scraped off with a slag arm, and the different alloys that settle according to weight are skimmed off. Some plants pour the liquid metals directly into (65 pounds) or ‘hogs’ (2000 pounds) without separating on site, which are then shipped to metal recovery plants to produce nickel, chromium and iron re-melt alloy for the manufacturing of other metal products.
State and Federal Regulations in the United States:
The Mercury-Containing and Rechargeable Battery Management Act was passed in 1996 by the U.S. Congress which requires regulated batteries such as Ni-CD batteries and sealed lead-acid batteries to:
1. be easily removable from consumer products to make it easier to recover them for recycling2. include in the label the battery chemistry, the “three chasing arrows” symbol, and a phrase that instructs users to properly recycle or dispose the battery 3. provide national uniformity in collection, storage, and transport 4. phase out the use of certain mercury-containing batteries
The Rechargeable Battery Recycling Corporation (RBRC):(www.rbrc.org)
The United States Rechargeable Battery Recycling Corporation (RBRC) was set up in 1994 as a non-profit, public service organization to help and promote the recycling of portable rechargeable batteries such as Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH), Lithium Ion (Li-ion), and Small Sealed Lead. It also educates rechargeable power users about the benefits and accessibility of rechargeable battery recycling. However, RBRC only recycles batteries that has RBRC Battery Recycling Seal. Manufacturers, marketers and collectors or rechargeable batteries or products that use them can contact RBRC at “licensee@rbrc.com” for better solutions. Other Contact Info:
RBRC1000 Parkwood CircleSuite 450Atlanta, GA 30339Ph: 678-419-9990Fax: 678-419-9986
Recent Developments:
The mercury reduction in batteries, which had already started in 1984, is still continued today. For example, batteries such as those containing alkaline have had about a 97 percent mercury reduction, and newer models may contain about one-tenth the amount of mercury previously contained in the typical alkaline battery, or may be zero-added mercury. A number of mercury-free, heavy-duty, carbon-zinc batteries are now available as alternatives. Technology such as silver-oxide and zinc-air button batteries contain less mercury so they are starting to replace mercuric-oxide batteries. Nickel-cadmium batteries can be reprocessed to reclaim the nickel, and cadmium free nickel and nickel-hydride system are also being researched. At present, most nickel-cadmium batteries are permanently sealed in appliances but changes are being made in regulations which will result in a more convenient retrieval and recycling of nickel-cadmium batteries.

To ensure the integrity of any Uninterruptible Power Supply, Telecommunications 48V system or generator, the lead acid batteries must be checked and maintained.
Surprisingly what ever the cost of your Power Protection system, whether it is a stand alone UPS System or Standby Diesel Generators the most common single point of failure are the batteries.
High resistance, leakage or open circuits will cause batteries to fail; no longer providing the expected autonomy or, in the case of a generator the inability to start. The Result – loss of the site load. Then suddenly you require a 24-7 emergency call out engineer.
Uninterruptible power supplies may have internal batteries or housed in separate battery cabinets. Each battery has a recommended design life, usually 5 years or 10 years, although these are optimistic as they don’t take into account high usage of the UPS Battery system caused by intermittent spikes, brown outs or voltage fluctuations which are absorbed by the batteries to protect your mission critical sensitive systems.
Even though the battery may have an operating life expectancy stated by the manufacturer of typically up to ten years, if it is not checked on a regular basis it can and will fail. In a string of 32 blocs all it takes is one battery to become high impedance and the complete string will be useless as the load will be unable to draw the current it requires and as a result the load will be lost and your critical load will fall over. The old batteries can be removed and new batteries supplied.
The most obvious signs of Battery leakage due to failure within the sealed lead acid battery causing the casing to split can be visible. Other issues of high impedance and open circuit are not obvious and require regular checks.
There are a number of different types of battery construction but they can be loosely divided into to two common types-’wet cells’ and ‘valve regulated lead acid’ (VRLA) batteries( often referred to as just ‘sealed lead acid batteries’).
Wet cell battery maintenance can be more time consuming, as the trade off against increased life expectancy is the higher cost of maintenance due to the necessity of taking specific gravity readings and ‘topping’ up the cell. A visual check of wet cell batteries needs to be undertaken on a more regular basis as any noticeable drop in electrolyte level must be swiftly rectified.
The VRLA ‘lead acid’ battery is more difficult to check being a sealed battery. The most common method of testing, often built into most UPS systems equipment is a battery self test which is often carried out automatically on a weekly/monthly time cycle. If the test fails the UPS system will generate an alarm. The major drawback is if the equipment is supporting a small load comparative to the capacity of the equipment the battery will not be worked very hard and could prematurely fail.
The more reliable means of regular testing a battery is either:-
1. By loading the battery to one third of its capacity and carrying out a capacity test
2. impedance testing -increasingly popular as it’s non-intrusive.
There are several methods of achieving the same result but one method is to pass a known ac current through the battery and measure the ac voltage and thus, by using Ohms Law calculate the battery impedance. These results can be compared with the manufacturer’s recommended value and by keeping records can be compared over a period of time allowing a replacement programme to be implemented when the battery impedance has reached a preset value.
Which ever method of battery testing you choose , regular battery maintenance is an integral part of any Uninterruptible Power Supply or Generator standby power protection system .
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