Six Things You Should Know Before Choosing A Battery Charger

July 29th, 2015

As rechargeable batteries continue to grow in popularity, more and more people are picking up packs of NiMH batteries at the supermarket or online to put an end to the never-ending cycle of disposable batteries. When purchasing NiMH rechargeable batteries for the first time, however, many people overlook the importance of choosing the right battery charger for their specific lifestyle and needs. The following article explores the different features and options you can expect to find when shopping for battery chargers and will help you to make the right choice for your specific needs.

Basic Chargers vs. Fast Smart Chargers

Basic chargers are designed to be slow chargers that you leave on all night while your batteries recharge, and are typically the least expensive style of battery charger. However, their affordability sometimes comes with a caveat: basic battery chargers tend to either undercharge or overcharge your rechargeable batteries. This is because they apply a set charge rate and then shut off with a timer. As a result, high-capacity batteries may not receive a full charge before the timer switches off. Conversely, batteries that are only partially discharged will receive the same timed charge overnight. This can cause your batteries to overcharge and lead to overheating and potentially permanent damage to your batteries, which will reduce their lifecycle. Additionally, basic chargers do not have protection features to prevent overcharge, such as temperature and voltage drop sensors. Also, if there is a power interruption during charge, the timer will start over and result in your batteries being overcharged.

Smart chargers, on the other hand, have advanced microprocessor controls called Delta V Control, which allow you to safely charge your batteries without worrying about overcharging them. Smart chargers will charge your batteries more consistently because they can sense when your batteries have reached full charge by measuring the rise in voltage. At full charge, they switch to a trickle charge mode, which keeps rechargeable batteries fully charged until ready for use. Smart chargers also protect your batteries from overcharging and overheating, which will prolong the life of your batteries. If the extra cost of these features is within your budget, it is well worth the extra expense, as it will save you money due to longer battery life and more battery cycles.

If youre looking to go one extra step beyond smart chargers, you can also opt for a battery manager. A battery manager offers the same functionality as a regular smart charger, however it is also capable of other useful tasks, such as conditioning, discharging, and analyzing battery capacity. Most battery managers deal with each battery individually, allowing you to perform different functions at the same time. If you use rechargeable batteries for work-related tasks that rely on an optimally charged set of batteries, having a battery manager is the best option.

1-Hour Chargers vs. 4 to 6 Hour Chargers

The best battery chargers on the market will balance speed with gentleness and completeness of charge. Charge speed is always an important feature, but the faster the charge rate, the more internal wear on the battery, which will ultimately shorten the battery’s life. The ideal battery charger will charge fast, but also provide a relative, gentle charge rate and a smart Delta V chip to protect the charger from overcharge / overheat damage, while at the same time provide a complete charge to maximise run times between chargers.

If you do choose to go with a fast charger, you should know that the maximum number of charge cycles your rechargeable batteries can endure will be somewhat reduced. Battery manufacturers claim their batteries can attain up to 1000 charging cycles, but this is dependant on several factors, including the rate of charging and discharging as well as the depth of discharge between charge cycles. In other words, if you want to attain the highest number of charge cycles, use a slow overnight charger and begin charging them before they are 50% discharged (even though this isnt always the most convenient option). In my opinion, a charger that can charge in about 4 to 6 hours is the best trade off between convenience and not frying your batteries during each charge.

2-Channel vs. 4-Channel Battery Chargers

While speed and smart features tend to be what consumers look for in a high quality battery charger, choosing the right amount of channels for your charger is also a critical decision. As a rule, 4-channel chargers are always a better choice than 2-channel chargers. This is because a 2-channel charger only charges 2 sets of 2 batteries at a time. What this means is that, if 2 batteries of differing charge (1 flat and 1 half charged) are charged together on the same channel, only one of them will get fully charged. However, with a 4-channel battery charger, all 4 batteries are charged independently, so that they each receive a full, even charge.

Which Chargers Can Be Used Overseas?

If you like to travel and take your electronics and gadgets with you, then you have to be careful about recharging your batteries overseas. Theres a simple yet critical rule to observe: only use your charger overseas if the charger’s AC adaptor plug is rated to accept 240V. There should be a sticker on the adaptor near the plug listing the power specifications. If it says 100V – 240V 50-60Hz it can accept other countries power as long as you have the applicable adaptor to allow the plug to fit in that outlet. The sticker should also have a tick symbol on it to show that it has been approved for use in Australia. Many battery chargers purchased from overseas do not have any approval for sale or use in Australia and may not meet Australian Safety Standards.

Should Batteries Get Hot When Being Charged?

Yes, when charging Ni-Mh and Ni-Cd batteries, they do increase in temperature substantially due to internal resistance. The batteries will feel warm to hot when charged. According to specifications, they can heat up to 55 deg C (131 deg F) during rapid or fast charging. Allow your batteries a few minutes to cool down before using them. Also, it is a good idea to leave the dust cover down when charging to allow airflow and help dissipate the heat.

How Long Will It Take To Recharge My Batteries?

This is like asking how long does it take to drive from Melbourne to Sydney! Unless you know how fast you are going, you will have no idea how long it will take. The same is with a battery charger: unless you know how fast it will charge, it is impossible to guess how long it will take to charge. The Vapex VTE 2000 charger, for example, has a charge current of 500 mA and will charge 2900mAh batteries in just under 6 hours. As a general rule, charge time is calculated by charge current / battery capacity. In this case 500 / 2900 = just under 6 hours.

So to sum up, for most people and for most uses, a charger that can charge in 4 to 6 hours and has Delta V microprocessor controls and 4 independent charging channels is the best choice for safety, convenience, and wear and tear on your batteries and will get the most out of your batteries.

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Video Recording Available In Electronics With Playback Option

July 27th, 2015

In todays advanced society the variety of goods and other equipments has increased to altogether a new height. New electronic systems and latest equipments, gadgets and tools are filling up the spaces in the market and are getting popular amongst people. It has all been possible because of the rapid growth of the latest technology which has created revelation in the society. Things were not the same few years back, as technology had its own limits and boundaries. Not many electronic gadgets were to be seen as new inventions were hard to come by. Manufacturers today have left no stone unturned to deliver excellence through their product and to remain ahead of others in the competition. But the main life of the electronics is its inner parts which gives power to the gadgets for better performance.

The new and latest Voice record playback systems have been intelligently and careful made in order to fit the perfect requirement of the consumer ensuring perfection and durability. It has a capacity to record a 20 second message from either the on-board mic, or the line in. It is a fully assembled and tested module which has features including

It has a built in Audio amplifier with 720mW 4 ohm speaker output, with an adjustable volume.

It can play back once or looped.

The audio chip has 100 year message retention without a power supply which makes this gadget different and outstanding than others.

It is well equipped with screw terminal connector for speakers, line out and line in.

Has a dimension of 2.5 inches by 3.5 inches, of an inch high or 6 cm x 8 cm 20 mm high, and

2.1 mm barrel type power plug center positive and the board can easily operate over a wide range of voltage from 9 to 15 VDC.

The innovative and latest Stepper motor driver kit is a best in class offering a long life to the particular electronic or gadget. It is also known as a Bipolar Stepper Motor Driver with easily adjustable current control up to 2A, it is based on the SGS-Thompson L297 and L298 stepper motor controller and driver ICs. This Chopper driver has a switching on and off current which allows a set current to flow to the coils and not be dependent on the voltage of the power supply. The Chopper Driver also allows the use of higher voltage power supplies to overcome the effects of the inductance of the coils resulting in better performance and a higher top speed.

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The Useful Of The Electronics

July 10th, 2015

Can People imagine that what our life would be like if the whole electronics are disabled? We cant hold outstanding efficiency without computers; plentiful computer-related technicians would say goodbye to their jobs. More depressingly, even at home, they would also have nothing to do: there is no television. a large number of people would lose the contact with others for they have been inured to using telephones. Cars and vessel would get lost, maybe forever, for GPS and navigation systems are disabled. The global economics would deteriorated for wholesale electronics is its necessary component. A world without electronics is unacceptable.

“Electronics” is one aggregative noun which contains many points. In my opinion, these things could be categorized into 2 facets. The 1st facet is the products that every person must have in the Information Age such as computer, television, phone, and calculator. In this age, computer is the linchpin of life and work as well as the assurance of efficiency. Television has deeply taken root into our life for a great many years and affected people from generation to generation. From telegraph to telephone, from telephone to cell phone, scientists keep committing themselves to improve communications tools, but electronic method is invariable forever. We cant live without calculator as well, unless you use abacus as well as Chinese. They have been one part of humans life, and made up of the significant elements.

The second aspect is the goods that improve the life standard such as entertainment products, health care electronics (for example: blood pressure detector, alcohol detector and etc.) and

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Sell Electronics Online, For Free

July 9th, 2015

Selling things online is a great way to make some extra money from home, but setting up an e-commerce store isn’t for the faint hearted. It requires a huge investment of time and money, and you can end up with nothing to show for it in the end. If you want to make some easy money online, there is one way that you can do it without having to pay a cent, or invest more than a minute of your time.

It might sound too good to be true, but it isn’t. The used electronics market is huge on the internet, and used electronics dealers always need fresh stock. This means that if you’re one of the millions of people with unwanted cell phones, iPhones, laptops, or other devices in your home, you can make a ton of extra cash by learning to sell electronics online. There are some serious advantages to doing this versus holding on to your old electronics:

– Since you already own the things you’ll be selling, you won’t need to lay out a lot of money for stock the way you would with an e-commerce shop.
– Since you’ll be selling your devices to a dealer, you won’t need to deal with customers directly.
– When you sell electronics online, you get money in just a few days.
– Since you’ll be selling things through another company’s website, you won’t need to pay for things like web space or site designers.
– Holding on to your electronics doesn’t do anything for you. You’re unlikely to ever use them again, and you won’t get any money for them if they’re just hanging around your home.

So, how do you sell electronics online without having to pay anything? You do it through a used electronics dealer’s website. These companies will pay you money for your unwanted devices, no matter what kind of condition they’re in. Even a broken device, like a smartphone with a cracked screen or an iPad that just won’t turn on, is worth some money to the right person. Instead of having to be the one to find that right person, you can put your old, broken, or unwanted electronics into the hands of someone who will.

On a used electronics dealer’s website, you can get a price quote in twenty nine seconds. All you need to do is know your device’s brand and model, and have a good idea of what kind of working order it’s in. Be honest! You’ll be quoted more for a device that’s in perfect working order, but your device will be inspected once it’s received by the company. When you sell electronics online, you’ll be paid for the condition your electronics are actually in, so it’s in your best interest to tell the truth on the company’s website.

If you like the offer, the next step is to continue with the transaction by requesting a free mailer from them. You’ll be sent a special box or padded envelope that is already stamped with the necessary postage. So, not only to you not have to pay for stock to sell electronics online, you don’t need to pay for shipping, either. When your mailer arrives (most likely in a few days, depending on postal service in your area), you simply use it to mail your electronics in to the used electronics dealer.

The last step to sell electronics online is to wait to be contacted by the company buying your devices. They will confirm the condition and model of your electronics, and discuss payment options with you. In most cases, you’ll be able to take your payment as an online transfer, through a service like PayPal. If you prefer, you may also be able to take it in the form of a check or money order. You’ll get your payment a few days after that, and your electronics will be resold.

E-commerce sites are a great idea, but not everyone has the money and energy to invest in them. Instead of having to sell electronics online yourself, why not rely on experts in the field of selling electronics? Turn your unwanted devices over to the right company, and you’ll get to walk away with some fast cash with little to no effort.

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Employees May Have Privacy Rights In Their Personal Emails Sent On Company Computers

July 8th, 2015

Most employees just accept the fact that their employer can access any content that is on a company computer, including employees personal emails and other personal information. But, is that the law? A growing number of courts are recognizing that employees have some expectation of privacy with respect to their personal content on company computers. Some recent decisions have held that employers do not own and cannot access their employees personal emails not even when those emails were sent on a company computer.

Marina Stengart v. Loving Care Agency, Inc. is a workplace privacy case that was decided on June 26, 2009. Marina Stengart worked as an Executive Director of Nursing at Loving Care Agency, Inc. Loving Care provided Stengart with a company computer and an email address to accomplish her work duties. Loving Care had an electronic communications policy which stated that emails, internet use and computer files are considered the companys property and are not to be considered private or personal to any individual employee. The policy also stated that the company had the right to review, audit, intercept, access, and disclose all matters on the companys media systems and services at any time, with or without notice.

Stengart used her company computer to email her attorneys about filing a discrimination lawsuit against Loving Care. But, Stengart did not use her company email address. She emailed her attorneys with her personal, password protected Yahoo email account while using her company computer. Stengart resigned from her employment and sued Loving Care for discrimination. Loving Care then searched Stengarts company computer and, pursuant to its electronic communications policy, read the emails Stengart exchanged with her attorneys. Stengart angered by Loving Cares reading of her personal emails, asked the Court to decide if Loving Care had the right under its electronic communications policy to read emails she sent to her attorneys through her personal email account on her company computer.

The Stengart Court rejected the notion that an employees personal emails become company property simply because the company owns the computer, claiming that a company computer in this setting is little more than a file cabinet: “Property rights are no less offended when an employer examines documents stored on a computer as when an employer rifles through a folder containing an employees private papers or reaches in and examines the contents of an employees pockets; indeed, even when a legitimate business purpose could support such a search, we can envision no valid precept of property law that would convert the employers interest in determining what is in those locations with a right to own the contents of the employees folder of private papers or the contents of his pocket.” The Court ruled against Loving Care, concluding that an employer cannot transform all private communications into company property — merely because the company owned the computer used to make the private communications or used to access such private information during work hours.

Marina Stengart asked the Court if her employer had the right to view her personal emails. Bonnie Van Alstyne took the workplace privacy notion a step further when she sued her former employer for accessing her personal emails. Bonnie Van Alstyne worked as a Vice President at Electronic Scriptorium Limited, a small data conversion company owned and operated by Edward Leonard. Van Alstyne had a company email account, but she occasionally used her personal AOL email account to conduct business. Van Alstynes employment was terminated and she filed a sexual harassment lawsuit against the company. During the discovery process, Van Alstyne learned that Edward Leonard accessed her personal email account both during and after her employment. Leonard produced 258 emails he had printed from Van Alstynes personal email account.

Van Alstyne filed a separate lawsuit against Leonard, Bonnie Van Alstyne v. Electronic Scriptorium Limited, et al. Her lawsuit alleged that Leonard violated the Stored Communications Act when he accessed her personal email account and viewed her emails. The Stored Communications Act creates criminal and civil liability for any individual who intentionally accesses without authorization a facility through which an electronic communication service is provided or intentionally exceeds an authorization to access that facility and obtains, alters, or prevents authorized access to a wire or electronic communication while it is in electronic storage in such system. In other words, the Stored Communication Act prohibits an individual from, among other things, intentionally accessing other peoples stored emails, voicemails, text messages, etc. without permission. A jury found that Leonard violated the Stored Communications Act and awarded Van Alstyne $250,000 in compensatory and punitive damages and more than $136,000 in attorneys fees and costs.

The law is changing. Courts are recognizing that employees have a right to privacy in their personal emails even when those emails are sent on company computers and even when company policy says otherwise. But, both Marina Stengarts and Bonnie Van Alstynes employers read their personal emails which gave their employers valuable defensive information and severely prejudiced Stengart and Van Alstyne in their pending lawsuits. A lawsuit cannot unring that bell. And, Stengart and Van Alstyne were forced into lengthy, costly legal battles to enforce their privacy rights. It is encouraging that courts are recognizing employee privacy rights and giving employees remedies when those rights are violated. However, the best course of action is to keep your personal email and your company computer separate thereby eliminating any possibility that your employer will view your personal emails.

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