It is usb car charger with metal material 100% Brand new and high quality?

Autumn is car charger coming,it is a good time for driving outdoor outing. Families and friends get together on the weekend for parades, picnics, barbecues and go out to appreciate the beautiful scenery of nature.Well, It's convenient to travel by their own car.here i will introduce a few useful car security tool, at the time of driving, can better protect you and your family friends and personnel safety. Can let our travel more smoothly.

1. 2.5 Inch Color LCD 270 Degree 6 IR LED HD Car DVR Camera Recorder Audio Video Recorder

It is usb car charger with metal material 100% Brand new and high quality,The high quality video & audio can be timely and strong evidence to address accident and distinguish responsibility.It's also a functional assistant of your private security. The DVR can capture clear videos for owners who want to monitor their cars. For professional engaged in the work of police officers, journalists, detectives, lawyers, taxi, etc.

Plug:AU/EU/US different plug available
Housing material:ABS+PC
Protection:Over current,over voltage,short-cuirt protecti
Application:iphone,ipad,powe bank,PSP,MP3 and so on
Certification:CE/ROHS/FCC

2 port usb car charger with metal material

What is battery charger?

Harmonic is a 9.6V 1.2A nicd battery charger in and one that designers of power continuity programmes and manufacturers of UPS (uninterruptible power supplies) cannot ignore. Typical harmonic problems include the distortion of mains power supply voltage, overheating of wiring, neutral conductors, supply transformers and switchgear and nuisance tripping of breakers. Harmonics can also cause disruption to equipment on the same supply and lead to random failures.

Harmonics are caused by voltage or current waveforms with frequencies that are multiples of the fundamental frequency – in Europe, 50Hz (50 cycles per second). The multiples are always ordered in a specific sequence: for example, the 2nd harmonic is 100Hz (2x50Hz), the third 150Hz and the fourth 200Hz and so on.

Harmonics and total power factor – implications for UPS sizing. Harmonics are also closely related to power factor management – and another key aspect of uninterruptible power supply system design and implementation. The displacement power factor is only applicable to the fundamental frequency (50Hz in Europe) and therefore does not take into account the power factor generated by any harmonics induced into the mains power supply by the load itself (referred to as the distortion power factor and produced by the harmonics produced by non-linear loads). The combination of the displacement power factor and the distortion power factor gives what is known to UPS systems experts as the true power factor. When correctly sizing a UPS, an understanding of this is critical.

Mitigation of total harmonics distortion. Harmonics issues need to be addressed at the design stage of any power continuity plan. Not least, because consumers are responsible for the harmonic levels introduced into their three-phase mains power supply.

A UPS can sometimes be fitted with a harmonic filter (post installation) but this can be a costly and inelegant solution as extensive internal wiring changes may be required. For a transformer-based UPS, using a 12-pulse rectifier in place of a 6-pulse set will reduce the levels of THDi (total harmonic distortion). Coupling this with a passive filter will provide further reduction to around 4%.

For a transformerless uninterruptible power supply, THDi levels of less than 4% can be achieved by installing an active harmonic filter. However, levels as low as 3% can now be achieved by some designs whose rectifiers are IGBT (Insulated Gate Bipolar Transistor) based. This can remove the need for an additional active harmonic filter and simplify the UPS design process. Such designs are expected to become the norm: not only do they reduce initial costs, but they allow a smaller UPS system footprint whilst increasing input power factors.

A popular approach to reduce the effect of leading power battery charger  factors on a UPS installation is to use an active harmonic filter with power factor correction on the UPS output. This presents the UPS with a more acceptable load, but results in higher capital and installation costs, lower efficiency and a greater footprint.

Familiar territory for UPS manufacturers. Although many aspects of harmonics must be considered when specifying a UPS system, reassurance can be gained from the fact that this is familiar territory for UPS manufacturers such as Riello UPS. End users and their professional advisers can certainly be confident that this specialised aspect of UPS application will be thoroughly addressed during the modern consultative sales and specification process.

9.6V 1.2A nicd battery charger

The charge cannot be terminated on a voltage capacity reached at 29.4V 14A lithium battery charger?

These remarks apply equally to lithium ion and lithium polymer batteries. The hemistry is basically the same for the two types of batteries, so charging methods for lithium polymer batteries can be used for lithium-ion batteries.
Charging lithium iron phosphate 3.2 volt cells is identical, but the constant voltage phase is limited to 3.65 volts.

The lithium ion battery is easy to charge. Charging safely is a more difficult. The basic algorithm is to charge at constant current (0.2 C to 0.7 C depending on manufacturer) until the battery reaches 4.2 Vpc (volts per cell), and hold the voltage at 4.2 volts until the charge current has dropped to 10% of the initial charge rate. The termination condition is the drop in charge current to 10%. The top charging voltage and the termination current varies slightly with the manufacturer.

However, a charge timer should be included for safety.

The charge cannot be terminated on a voltage. The capacity reached at 4.2 Volts per cell is only 40 to 70% of full capacity unless charged very slowly. For this reason you need to continue to charge until the current drops, and to terminate on the low current.

It is important to note that trickle charging is not acceptable for lithium batteries. The Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.

Charger indicator: red charging/green finished
Protection:Over current,over voltage,over Temperature,auto -Shut Down when Battery is fully charged
Charging time Control,never damage battery
Application:Power Tool，Electrical Bike，Electrical Toy，Mobile Lamp，Security system and so on
100% Burn-in QC test

 29.4V 14A lithium battery charger

Duracell Pre Charged Rechargeable Nimh Batteries Combo Review?

Duracell have been manufacturing high quality batteries since the 1920's and have developed a reputation as the world's leading battery manufacturer.

The Duracell Pre Charged Rechargeable Nimh Batteries Combo is a compact battery charger, which is ideal for high drain appliances. The specific model of this charger is the Duracell CEF14NC. Duracell have made a couple of enhancements over their previous value charger; these include a universal voltage input and the ability to charge up to 4 triple A cells.

Charging

A plus point is that you can charge up to 4 triple A cells at once, unlike with many other chargers which can only charge 2 triple A cells at a time.

Batteries can only be charged in pairs or sets of fours, which is rather disappointing because you can't charge only 1 or 3 batteries if you have an appliance which requires batteries in odd numbers.

Another disadvantage is that the charger only stops charging when the combined voltage of the 2 batteries is sufficient enough. This means that if you are charging 1 empty battery with one which is either full or almost full then one of the cells will be overcharged which is detriment to the length of the batteries life.

Charging Times

The charging times are reasonable. It takes about 6 hours to charge 2 AA batteries, which are empty. The charging current differs depending on the type of the battery which is being charged. AA cells are charged at 360mA and triple A cells are charged at 180mA.

Universal AC input

Accepting a universal voltage input of 110-220 volts, this is ideal for use as a travel charger. There are no adapters or cords, the charger plugs straight into the wall so packing the charger away for storage is very easy.

Supplied with 8 Pre-Charged batteries

Duracell have included 8 pre-charged batteries in the combo package. The battery types are 4 AA and 4 triple A. As they are pre-charged, you have the convenience of being able to use them right out of the package.

The supplied batteries have a very good lifespan, even with high drain appliances you get about 10 hours usage from the triple A cells.

Final Thoughts

Overall, the Duracell Pre Charged Rechargeable Nimh Batteries Combo is a good deal. It's portable, well built and comes supplied with 8 quality long life batteries.

On the downside, the fact that it only charges batteries in either pairs or fours could be off putting if you have appliances which require an odd numbers of cells. Also, there is a possibility of batteries becoming overcharged unless you only charge cells together which have similar amounts of power in them.

If most of your appliances accept cells in pairs, then this is a good buy, but if you want more advanced features such as individual cell monitoring to charge batteries.

 6.4V 0.6A nimh battery charger

Use Overview of common lead acid battery sulfuration removal methods?

Battery sulfuration is one of the most common reasons to reduce the battery life and in order to have a long battery life, we must avoid battery sulfuration phenomenon earlier. The electric vehicle battery sulfuration is generally because our vehicles can't get timely charge after use. Some small crystals, will be formed inside the battery when the battery becomes sulfation, and these small crystals will be adsorbed on the electrode plate of the dedicated battery of the electric car, blocking the current channel, leading to the deterioration of the battery performance, shorter life!

To avoid electric vehicle batteries sulfuration, Leoch suggestions: First, we will provide timely charge to the batteries of electric vehicles; Second it's necessary to adopt some of the sulfuration removal devices for removing sulfuration. Sulfuration removal methods are:

1. Choose to use professional desktop rapid sulfur removal equipment

Desktop sulfur removal equipment works fast high voltage and high current pulse charging, eliminate negative blocking wearing sulfide battery. This method is fast, effective, and can be temporarily eliminate the effect of sulfide, high voltage and high current, however, able to strike desulphurization addition to the active substance in the elimination of sulfide bring severe dehydration and positive plate softening after such equipment in addition to the basic will of sulfur twice battery scrap battery fatal injury. At present, the market appeared a pulse discharge of sulfur removal equipment, in fact, the fundamental principle has not changed, just from the constant high pressure Hengda current becomes instantaneous peak high-pressure, or will damage the electrode active material, this method should be used with caution .

2. Select desulphurization charger

May be in addition to sulfur charger works similar to desktop sulfur removal equipment works fast, high-voltage high-current pulse charging, blocking by negative wear in addition to sulfur, has been described above, this method of battery life would constitute a fatal injury, has been negated. The second is the use of a fast pulse edge of charging and discharging pulses, the use of the instantaneous peak, and to interfere with the vulcanization of the battery during the charging process. Another is periodically using 10% to 20% over the method of charging, the lead sulfate crystals of the reduction cell. Both chargers can charge when sulfur removal, but it will cause less or overcharged, it also ignores the fact that of the battery discharge process is the most important of the vulcanization process, so the effect is not ideal.

3. Use online lead-acid batteries Nobu

Online lead-acid battery Nobu batteries in parallel twenty-four hours of stop and eliminate sulfide. This approach fix a slow, long time to repair, often in more than 120 hours, but both charge-discharge process can prevent and eliminate sulfide, repair works well. Low-voltage, low-current, Nobu does not have a powerful impact on the battery plates and lead to dehydration and soften a user once put into maintenance mode can be sustained, especially for the better quality of the new battery can be extend battery life by 2-5 times, and time invested, along with the electric automobile, the next time to replace the battery, Nobu can also continue to use, can save a lot of economic cost for the user.

In a word, the ultimate solution: Anti greater than governance, usually dedicated lead acid battery charging for electric vehicles in a timely manner, and pay more attention to maintenance, which allows for electric cars to achieve the design life of the battery in the case of normal use, then why should desulphurization these troubles.

32V 1.8A nimh battery charger

The 'smart' battery

The battery has the inherit problem of not being able to communicate with the user. Neither weight, color, nor size provides an indication of the battery's state-of-charge (SoC) and state-of-health (SoH). The user is at the mercy of the battery.

Help is at hand in breaking the code of silence. An increasing number of today's rechargeable batteries are made 'smart'. Equipped with a microchip, these batteries are able to communicate with the charger and user alike. Typical applications for 'smart' batteries are notebook computers and video cameras. Increasingly, these batteries are also used in biomedical devices and defense applications.

There are several types of 'smart' batteries, each offering different complexities and costs. The most basic 'smart' battery may contain nothing more than a chip that sets the charger to the correct charge algorithm. In the eyes of the Smart Battery System (SBS) forum, these batteries cannot be called 'smart'.

What then makes a battery 'smart'? Definitions still vary among organizations and manufacturers. The SBS forum states that a 'smart' battery must be able to provide SoC indications. In 1990, Benchmarq was the first company to commercialize the concept by offering fuel gauge technology. Today, several manufacturers produce such chips. They range from the single wire system, to the two-wire system to the System Management Bus (SMBus). Let's first look at the single wire system.

The Single Wire Bus
The single wire system delivers the data communications through one wire. This battery uses three wires: the common positive and negative battery terminals and one single data terminal, which also provides the clock information. For safety reasons, most battery manufacturers run a separate wire for temperature sensing. Figure 1 shows the layout of a single wire system.

Figure 1: Single wire system of a 'smart' battery.Only one wire is needed for data communications. For safety reasons, most battery manufacturers run a separate wire for temperature sensing.

The single wire system stores the battery code and tracks battery readings, including temperature, voltage, current and SoC. Because of relatively low hardware cost, the single wire system enjoys market acceptance for high-end two-way radios, camcorders and portable computing devices.

Most single wire systems do not provide a common form factor; neither do they lend themselves to standardized SoH measurements. This produces problems for a universal charger concept. The Benchmarq single wire solution, for example, cannot measure the current directly; it must be extracted from a change in capacity over time. In addition, the single wire bus allows battery SoH measurement only when the host is 'married' to a designated battery pack. Such a fixed host-battery relationship is only feasible if the original battery is used. Any discrepancy in the battery will make the system unreliable or will provide false readings.

The SMBus

The SMBus is the most complete of all systems. It represents a large effort from the electronics industry to standardize on one communications protocol and one set of data. The Duracell/Intel SBS, which is in use today, was standardized in 1993. It is a two-wire interface system consisting of separate lines for the data and clock. Figure 2 shows the layout of the two-wire SMBus system.

An addition problem with the SMBus battery is non-compliance. Unlike other tightly regulated standards, the SMBus protocol allows some variations. This may cause problems with existing chargers and the SMBus battery should be checked for compatibility before use. The need to test and approve the marriage between a specific battery and charger is unfortunate, given the assurance that the SMBus battery is intended to be universal. Ironically, the more features offered on the SMBus charger and the battery, the higher the likelihood of incompatibilities.

3.2V 0.8A nimh battery charger

Overview of common lead acid battery sulfuration removal methods

Battery charger sulfuration is one of the most common reasons to reduce the battery life and in order to have a long battery life, we must avoid battery sulfuration phenomenon earlier. The electric vehicle battery sulfuration is generally because our vehicles can't get timely charge after use. Some small crystals, will be formed inside the battery when the battery becomes sulfation, and these small crystals will be adsorbed on the electrode plate of the dedicated battery of the electric car, blocking the current channel, leading to the deterioration of the battery performance, shorter life!

To avoid electric vehicle batteries sulfuration, Leoch suggestions: First, we will provide timely charge to the batteries of electric vehicles; Second it's necessary to adopt some of the sulfuration removal devices for removing sulfuration. Sulfuration removal methods are

Desktop sulfur removal equipment works fast high voltage and high current pulse charging, eliminate negative blocking wearing sulfide battery. This method is fast, effective, and can be temporarily eliminate the effect of sulfide, high voltage and high current, however, able to strike desulphurization addition to the active substance in the elimination of sulfide bring severe dehydration and positive plate softening after such equipment in addition to the basic will of sulfur twice battery scrap battery fatal injury. At present, the market appeared a pulse discharge of sulfur removal equipment, in fact, the fundamental principle has not changed, just from the constant high pressure Hengda current becomes instantaneous peak high-pressure, or will damage the electrode active material, this method should be used with caution .

May be in addition to sulfur charger works similar to desktop sulfur removal equipment works fast, high-voltage high-current pulse charging, blocking by negative wear in addition to sulfur, has been described above, this method of battery life would constitute a fatal injury, has been negated. The second is the use of a fast pulse edge of charging and discharging pulses, the use of the instantaneous peak, and to interfere with the vulcanization of the battery during the charging process. Another is periodically using 10% to 20% over the method of charging, the lead sulfate crystals of the reduction cell. Both chargers can charge when sulfur removal, but it will cause less or overcharged, it also ignores the fact that of the battery discharge process is the most important of the vulcanization process, so the effect is not ideal.

Online lead-acid battery Nobu batteries in parallel twenty-four hours of stop and eliminate sulfide. This approach fix a slow, long time to repair, often in more than 120 hours, but both charge-discharge process can prevent and eliminate sulfide, repair works well. Low-voltage, low-current, Nobu does not have a powerful impact on the battery plates and lead to dehydration and soften a user once put into maintenance mode can be sustained, especially for the better quality of the new battery can be extend battery life by 2-5 times, and time invested, along with the electric automobile, the next time to replace the battery, Nobu can also continue to use, can save a lot of economic cost for the user.

In a word, the ultimate solution: Anti greater than governance, usually dedicated lead acid battery charging for electric vehicles in a timely manner, and pay more attention to maintenance, which allows for electric cars to achieve the design life of the battery in the case of normal use, then why should these troubles.

6.4V 0.6A nimh battery charger

How to properly use the charger

We shall keep safe using home appliances no matter what kind of we have bought, not to mention the phone,we must abandon some of habits without the security use of mobile phone especially when the phone is charged.

How to properly use the cell phone charger is the key to safe use of the mobile phones,if we do not pay attention to, we would not only get an electric shock, but may occur an explosion.

1. Do not expose the phone charger at a high temperature, during the summer with hot and humid climate and electricity peak, the phone charger is poor at heat dissipation,plus the unstable current, increasing the likelihood of conduct problems, especially for the phone with the metal body. Those with sweating palms and others with damp hair after taking a bath will likely be subjected to electric shocks. Moreover, do not cover the cell phone with blanket or pillow to avoid the battery temperature is relatively high, and thus the occurrence of breakdown, combustion, explosions and other tragedies while charging the phone.

2. Do not use the phone while charging. We are increasingly dependent on the smartphone, and like using a cell phone while charging, the phone is charging, it is not wise to pick up the smartphone when charging. The charger transformer parts is likely to be breakdown if the charger with poor quality. Furthermore, the phone with low battery will produce more radiation harmful to human health.

3. Promptly unplug the charger when is fully charged. Many are accustomed to connecting the phone to the charger all day long for convenience. However, such an approach would lead to some security risks, the coil of the charger plugged may cause fever, insulating paint loss and damage, and even cause a fire due to heat. Therefore, unplug the charger to timely prevent fire at the rear end of charge or out of the room for a long time.

4. Mobile phone charger, battery has a certain service lifespan, replace the phone charging immediately when damaged.

 6.4V 1.6A nimh battery charger

What does "NIMH" mean on batteries?

NiMH means "nickel-metal hydride." A little history might be interesting. One of the most successful exotic batteries is the nickel-hydrogen battery. It uses the same nickel-hydroxide positive electrode and KOH electrolyte as the Nickel-Cadmium battery, but it uses hydrogen gas to replace the cadmium in the negative electrode. It needs a pressure vessel to hold the hydrogen gas. The nickel-hydrogen battery is mostly used in low-orbit satellites, which charge and discharge the batteries on every pass around the earth, and so need a long cycle-life battery.

Another way to store hydrogen is in intermetallic compounds called metal-hydrides. Some metals have room in their atomic lattices to accomodate hydrogen atoms. The hydrogen can be induced to enter and exit the metal matrix by electrochemical means. So the nickel-metal-hydride battery is a variation on the nickel-hydrogen battery, with a new, low-pressure, method to store the hydrogen. Unfortunately, since the metal-hydrides corrode when exposed to KOH, they are not as long-lived as nickel-hydrogen batteries.
NiMH Charging

Basics

NiCad and NiMH batteries are amongst the hardest batteries to charge accurately. Whereas with lithium ion and lead acid batteries you can control overcharge by just setting a maximum charge voltage, the nickel based batteries don't have a "float charge" voltage. So the charging is based on forcing current through the battery. The voltage to do this is not fixed in stone like it is for the other batteries.

Parallel Charging: This makes these cells and batteries difficult to charge in parallel. This is because you can't be sure that each cell or pack is the same impedance (or resistance), and so some will take more current than others even when they are full. This means that you need to use a separate charging circuit for each string in a parallel pack, or balance the current in some other way, for example by using resistors of such a resistance that it will dominate the current control.

The coulometric charging efficiency of nickel metal hydride batteries is typically 66%, meaning that you must put 150 amp hours into the battery for every 100 amp hours you get out. The faster you charge the worse this gets.

The minus delta V bump that is indicative of end-of-charge is much less pronounced in NiMH than NiCad, and it is very temperature dependent. To make matters worse, new NiMH batteries can exhibit bumps in the curve early in the cycle, particularly when cold. Also, NiMH are sensitive to damage on overcharge when the charge rate is over C/10. Since the delta V bump is not always easy to see, slight overcharge is probable.

9.6V 0.4A nimh battery charger

Rust Removal the Scientific Way

Rust is one of the biggest culprits that make your possessions look unsightly and even render them useless when left unattended. Rust is iron that made contact with oxygen, and forms an unattractive stain in your metals and other materials in your house that contains or is made up of iron. Aside from employing various methods to protect your materials from the formation of rust, you can also use many rust removal products. Over the years, many rust removers have already been developed that are cost-efficient, effective and can save your materials from rotting with rust.

Metal rust removers come in various forms and techniques. One of the most popular ways of removing rust manually without the use of rust removal products is through electrolysis. If you have paid enough attention to your sixth grade science teacher, you would know that rust is a product of iron making contact with oxygen. So basically, the process of removing rust is the transformation of the surface reeking of rust back to its original form - iron.

All you need to use are the following: a stainless steel, a plastic tub, washing soda, water and a battery charger. Place a tablespoon of the washing or baking soda to a gallon of water. This serves as the removal solution. Clean the piece of stainless steel to be used for the rust removal process. It is crucial that the steel is cleaned enough to ensure that enough electric contact is achieved. Attach the positive side of the battery charge to the steel and submerge it in the soda-water solution. Attach the negative side of the battery charger to the material you wish to be cleaned. Submerge this piece to the solution as well. Make sure that the material and the stainless steel do not make any contact as this might lead to a short circuit. Now it's time to turn the battery charger on. If the current is too high, you can either increase the distance between the stainless steel and the material to be cleaned or add more water to the solution. Once done, you should see bubbles of oxygen and hydrogen in the solution. The time to wait before all speck of rust is removed varies on the size of the material and how much rust has accumulated on it.

9.6V 0.4A nimh battery charger

Advantages of Battery Chargers

There are various battery chargers that give immense benefits to its owners. They provide the convenience, saving, and the surroundings, contributing to the new technology, while in use. Battery chargers are an outstanding addition to your office, house or perhaps car.

They are a very useful tool. The way to obtain batteries at the office or home may become considered an odd job. Using rechargeable battery charger ensures the limitless supply, wherever and whenever you need them. It is required for the mobile phone, laptop, mp3 player and it seems inevitable for the most. The usefulness of a car battery charger is usually huge. Regardless of whether it is required for charging digital camera batters or charging the battery for your ship, it is a time-saver if you own one of it. The majority people use some form of battery charger daily, weekly or monthly.

Over recent years, the nation began recognizing the importance of involving maintaining and preserving the planet's resources. Rechargeable battery power can therefore be helpful in this substantially. They require less energy for powering most of the things we use on the earth daily. In addition to this, if rechargeable batteries are used with the charger, you use and purchase less batteries. This means fewer emissions and less waste at landfills meets the energy required to manufacture the components themselves. Solar chargers are clearly beneficial for the environment. The use of solar power production is definitely increasing commonplace. This method saves almost twice that energy. The environment condition can be settled with something as common as with the use of a battery charger.

32V 1.8A nimh battery charger