Mat Rechargeable Battery
Different Types of Batteries
There are many different types of batteries available on the market and there has been a considerable boost in technology from the days of the Italian physicist Alessandro Volta, who started the modern development of the battery with the Volta Pile. Today there are different types of batteries and battery chargers, depending on their usage and application.
As said above, there are different types of battery cells available. The generally available ones are the types of electrochemical cells, like the fuel cells, electrolytic cells, galvanic cells, voltaic piles and flow cells. A battery’s features depend upon many various factors, like the current drain, internal chemistry and temperature. Let’s discuss the two broad categories of batteries:
Primary Batteries
Once assembled, primary batteries can immediately produce a current. Disposable batteries are a type of primary cells and are supposed to be used once and thrown out after. Primary batteries are most commonly in used in low drain appliances or portable devices that do not require a very high voltage. Disposable batteries cannot be reliably recharged, as the chemical reaction in the battery cannot be reversed and also the active materials do not get converted back to their original form. It is advisable that you do not attempt to recharge primary cells. In some cases of primary batteries, like the batteries used in the telegraph, circuits were restored back to operation after replacing the components of the battery cell which was consumed during the chemical reaction.
Common types of primary disposable cells are alkaline and zinc carbon batteries. These batteries generally have a high energy density as opposed to the rechargeable batteries, but it should be noted that disposable batteries do not perform well in high drain applications, which requires a load under 75 ohms (75 ?).
Secondary Batteries
Secondary batteries are also called rechargeable batteries. Secondary batteries must be charged with electricity before using them. The rechargeable battery has active materials that are usually assembled in the discharged form. The electric current used while recharging reverses the chemical reaction that occurs during the usage of the battery. Secondary batteries are also not indefinitely rechargeable, as the active materials used in the cell get dissipated and also there is internal corrosion and loss of electrolyte.
You require proper devices to charge the batteries called chargers or rechargers. The oldest rechargeable battery is the lead acid battery, which is a type of a wet cell. This battery is noted for containing a liquid within an unsealed container that requires it to be kept upright. The battery even needs to be kept in an open ventilated area so the hydrogen emitted during overcharging can get dispersed properly. A lead acid battery is used commonly in cars.
VRLA, Valve Regulated Lead Acid, is an improved liquid electrolyte battery type, which is a popular battery in the automotive industry. The VRLA uses an immobilised sulphuric acid electrolyte, which reduces the leakage and improves the shelf life of the battery. VRLA has the electrolyte immobilised by one of the following two ways:
• Absorbed Glass Mat (AGM) - These batteries absorb the electrolyte into special fibreglass matting.
• Gel Battery - These are also called Gel Cells and they contain a special semi solid electrolyte that prevents leakage.
Looking for a quality battery supplier? Then look no more, your answer is The Battery Base. This company can provide you with every type of battery you are looking for. For more information, please click here: www.thebatterybase.com.au.
About the Author
Frankie Connors writes articles about electrical products, especially batteries. He is well qualified to do so, having spent almost 10 years in the field of electrical equipment service.
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Unique Gift Ideas for the New Homeowner - the Sensible Sort
If someone on your Christmas list has just purchased a new home and you're trying to come up with gift ideas that will provoke a 'wow' response, this article will hopefully give you a few suggestions to pique your interest. These items are unusual, practical, and all are pretty cool. So if scented candles, themed gift baskets, and monogrammed towel sets just aren't your thing, read on for some gift ideas that are sensible, with a twist.
Purchasing a complete home security system for someone would be an extravagant gift, and one that's fraught with difficulties in terms of execution. However, if you'd like a little peace of mind knowing that your friend is safe in their new home, there are other options out there.
For instance, if your friend's a gardener, the Solar Shed Light will come in handy when the eerie cover of dusk creeps in. Solar Shed Lights can provide nearly 3 hours of light per charge, and run on rechargeable batteries that are powered by solar energy. These lights are very affordable, and make a great gift for someone who needs to tinker in their shed after dark, but is too skittish to do so.
For the easily spooked, nighttime inside the house can also be creepy, not to mention dangerous. If you don't have nightlights turned on, you can easily trip on something and get hurt. Often however, there aren't any plug-ins right where you need them, so it's with a great sigh of relief that we introduce the Portable Motion Detecting Dusk-to-Dawn LED Blue Night Light. This light is battery operated and can stand on its own, which means that you can move it to any area of the house you like. It uses motion detection technology, so it doesn't waste any battery life, and it has a special photocell that ensures that it only turns on at night. This fantastic blue light is also extremely light and features a flexible neck, so you can position it right where you need it. For under $30, this light makes a great gift.
Does your friend like to travel? While away from the house, it's a good idea to make it seem like someone's at home, in order to deter burglars. Light timers are a great option if you can't afford to hire a house sitter, but since the lights turn on at the same time every night, observant criminals may catch on. If they figure out that no one's home, they'll feel much more confident about breaking in. Timers work well in deterring opportunist thieves, but if you want to help your friend be even safer, you may want to get them this cool security feature that does a much better job faking it than timers: the FakeTV Burglar Deterrent Device.
The FakeTV Burglar Deterrent Device simulates the light flickers and color changes that regular televisions make and can be set to turn on at dusk plus 4 hours, or dusk plus 7 hours. At the prescribed time, it automatically shuts off, giving the impression that the occupants have gone to sleep. FakeTV has a light sensor, so that it can tell when it's dusk, and it uses much less electricity than actual television sets. Perfect for travelers and for people who don't want others to know that they're home alone, the FakeTV Burglar Deterrent Device is an inexpensive and simple way to protect one's home.
A slightly more eccentric security system is called M30P Magic Mirror. Hooked up to your existing security system, the Magic Mirror appears to be a regular mirror, but in reality houses a LCD screen with a CGI character named Basil. The ominous-looking Basil appears as just a head floating in front of a cloudy background. Basil only appears when his sensors detect that there's motion inside or outside the house (depending on which areas of your home are monitored). Basil is able to repeat preset recordings and report real time information. The M30P Magic Mirror allows you to give a gift that's both useful and kitschy in one to-die-for gift.
If the new homeowner in your life already has beefed-up security, but he or she has trouble keeping up with their yard work and housekeeping, you may consider hiring a maid, but why do that when there are cool gadgets you can get instead?
Vacuuming robots have been around for a few years, but today's models are much smarter than they used to be. They can detect obstacles (like your cat), and they return automatically to their docking station to recharge after use.
The newest addition to the realm of household robot technology is the Auto Mower, a solar powered robotic lawn mower. Slightly resembling the Batmobile, the Auto Mower is technologically advanced and perfect for those who can't (or won't) use a traditional lawn mower. Once its batteries get low, it heads to its docking station for a recharge, and then promptly goes back out to finish the job. If you're nervous about the Auto Mower being thief bait, have no fears. The Auto Mower requires a pin number to activate and also has a security alarm that sounds when unauthorized users try to mess with it. Pets, children, and potted plants are safe around the Auto Mower because when it brushes against something, it bounces backwards and heads off in a different direction.
In winter months, no activity is more backache-producing than shoveling snow. Thankfully, there are now Heated Traction Mats, which can melt up to 2 inches of snow per hour. Just line the mat along your driveway or walkway, plug it into a standard 120 V outlet, sit back, and watch snow and ice melt away! These mats are available in various sizes, can be left out all winter long, and are made out of non-slip rubber. If there's one gift any new homeowner outside of LA would love, it's the Heated Traction Mat.
For gifts that are even more unusual and decidedly extravagant, check out the continuation of this article, "Extraordinary Gifts for the New Homeowner."
About the Author
For info about Minneapolis lofts and condos, go to MinnesotaLoftsAndCondos.com. There you'll find listings for properties in St. Paul, Minneapolis, and surrounding areas.
