competive leading leoch battery: 七月 2011

2011年7月25日星期一

Definition and Operation Principle of Lead Acid Battery

Invented in 1859 by French physician Gaston Plante, lead acid battery has been used for over 140 years, which turns out that it is very reliable and dependable. Most people always know they are often used in cars and golf carts, but how many people their definition and operation principle?

What is the lead acid battery? A battery is a device in which chemical energy is transformed into electrical energy. That energy can be used in a controlled manner.

What’s more, how do these batteries work? In a normal battery we have three basic elements: one plate made of lead, an electrolyte of sulfuric acid and another plate made of lead oxide. When the battery is discharged, the sulfuric acid in the electrolyte reacts with the lead and lead oxide releasing electricity, forming lead sulfate. This leaves a watery electrolyte solution. When a battery is completely discharged, what is left is lead sulfate and water. When you start recharging the battery, the lead sulfate is broken apart by the electric current. This returns the system to the original elements: lead and lead oxide on the plates and sulfuric acid in the electrolyte, for the most part.

We said for the most part because an incomplete recharge is going to leave behind some lead sulfate. The next time you use the energy from the battery, the newly formed sulfate is going to attach to the left over sulfates making stronger sulfates. The problem is that a normal battery recharge is not going to be able to break them down completely. So you will have more and more sulfates that now are not breaking up and gradually are shortening the life of your batteries.

For the owners of lead acid battery, some general basic knowledge is very important to prolong the life. The maintenance tips are no exception. Maintaining your lead acid batteries, you need to check them on a regular basis to be sure they are getting charged. Use a hydrometer to check the specific gravity of your lead-acid batteries. If batteries are cycled very deeply and then recharged quickly, the specific gravity reading will be rower than it should be, because the electrolyte at the top of the battery may not have mixed with the “charged” electrolyte.

Check the electrolyte level in wet-cell batteries at least four times a year and top each cell off with distilled water. Do not add water to discharged batteries. Electrolyte is absorbed when batteries are discharged. If you add water at this time, and then recharge the battery, electrolyte will overflow and make a mess.

If you want to know more about lead acid battery, you can just visit Leoch International, which is an excellent manufacturer of lead acid battery. The company is a public company which has over 10 year’s history and it is very reliable and dependable. The office website is http://www.leoch.com. If you are interested in the company, you can search for more information in the internet.

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2011年7月21日星期四

Some General Types of Deep Cycle Batteries

Lead acid batteries are commonly classified as starting batteries, deep cycle batteries and marine batteries. The author wrote this article to tell something about types of deep cycle battery. Deep cycle batteries are used to store electricity in autonomous power systems, for emergency back-up and electric vehicles. These batteries are designed to discharge by as much as 80% of their capacity over thousands of charging and discharging cycles. True deep cycle batteries have solid lead plates however many batteries that do not have solid plates are called semi-deep cycle. Introduce the types of deep cycle batteries in detail as following:

Flooded – These batteries have a conventional liquid electrolyte. Standard types have removable caps so that the electrolyte can be diluted and the specific gravity measured, such batteries are supplied dry and you add distilled water. Standard flooded batteries are cheap and if they are kept topped up they are not overly sensitive to high charging voltages. Sealed batteries are supplied pre-flooded and have fixed valves to allow gases to vent during use however, they will still leak if inverted and the electrolyte can not be replenished so that over charging will cause damage.

Gelled Electrolyte – The electrolyte is a jelly and so will not leak. The electrolyte can not be diluted so that over charging must be avoided and these batteries may only last for 2 or 3 years in hot climates although with good care they can last for 5 years.

Absorbed Glass Mat (AGM) Batteries – The electrolyte is held between the plates absorbed in a fine boron-silicate mat. Like gelled electrolyte batteries they will not leak acid but they can withstand more careless treatment and are less sensitive to over charging since they are designed to retain vented gases. AGM batteries can also stand for 30 days in a totally discharged state and still be recharged successfully. The major drawback to these batteries is that they cost between 2 or 3 times as much as flooded batteries.

No matter which types of deep cycle batteries you have, they are all lead acid battery. They used the similar theory and different electrolyte. Maybe some of them are maintenance free batteries, but we are still careful of disposing of these batteries. Anyway, batteries adopted chemical reactions to store electric energy so that we need to know their basic characteristics to avoid unnecessary hurt.

If you want to know about batteries, please visit http://www.leoch.com

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2011年7月20日星期三

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2011年7月17日星期日

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Some General Guidelines of GEL Battery

Gel battery is filled with a gel substance, referred to as a gel electrolyte that replaces that some of us know as battery acid. The gel electrolyte is sulfuric acid combined with silica. Gel batteries contain a valve regulating system. This system allows gas to be released or expelled when needed. Along with the gas being expelled, the gel substance contains calcium, instead of the antimony that is found in traditional batteries. The calcium keeps the gel from gassing in the same way a traditional battery might.

There are several methods for charging gel cell batteries; however, constant voltage charging is the best way. For this type of charging, a fixed, regulated voltage source is used to charge the battery. Special attention must be paid to the exact charging voltage and the initial charging current.

There are two modes for constant voltage charging: fast charging and float charging. Smart chargers, which are available commercially, automatically switch between these two modes. In addition, the most sophisticated chargers will monitor the ambient temperature and adjust the charging parameters accordingly.

For fast charging (aka cyclic charging), the battery is charged with a fixed charging voltage until the terminal voltage reaches 2.40 to 2.45 volts per cell (14.4 to 14.7 volts for a 12-volt battery) at 20° C. The battery is then held at this voltage until the charging current drops to a value of 0.01 x C amps (where C is the battery's amp-hour rating). At this point, the battery is fully charged and you must either stop the charging or switch to the float-charging mode. Continual charging in the fast charge mode will overheat the battery and damage it. Do not let the battery voltage exceed 2.45 volts per cell or allow the charge current to exceed 0.20 x C amps.

For float charging (aka standby service), the battery is connected to a constant voltage source of 2.25 to 2.30 volts per cell (13.5 to 13.8 volts for a 12-volt battery) at 20° C. Provided that the charging source is regulated at the proper float voltage, the gel battery will establish its own current level and will be maintained in a fully charged condition. Gel cell batteries can be left in the float charge mode for extended periods of time without damage. This mode is often used to maintain gel cell batteries used in backup power applications.

If you want to know more about gel battery, you can just visit http://www.leoch.com

2011年7月15日星期五

How to Maintain an UPS Battery

An ups battery is used to store power to allow you to still use your computer without losing your data when outages occur. Of course, nowadays high-powered devices and even telecommunication devices also have corresponding ups systems for protection. The most common type of battery used in today’s ups is the valve-regulated lead acid battery, which is short for VRLA battery. These batteries are sealed, so the water can not be added to VRLA batteries, recombination of water is critical to their life and health. In addition, any factor that increases the rate of evaporation or water loss, such as temperature or heat from the charging current, reduces the life of the battery. In other words, if you don’t maintain the battery on a regular basis or sit unused with no charging regimen, their life will decrease.

The UPS battery is not so cheap in the market, so I think most people are not willing to allow their investment not to get the full value. So we need to do some measures to protect it and prolong its life.

UPS battery is generally sealed maintenance-free batteries, but the user is three to six months to do a discharge test, and observe the changes in battery capacity indicator, in order to understand the current battery status. Other battery maintenance detection method is as follows:

1. Visual inspection whether cell surface deformation or expansion of leakage phenomenon.

2. View the battery + and - poles is oxidation?

3. Test whether the battery terminals are loose.

4. Measure the battery terminal charging voltage. (Normal value of each cell is 13.7 ~ 13.8Vdc)

5. UPS battery longer, regular maintenance should be more intensive, UPS can not avoid the delay of the mains power supply interruption.

6. Recommended environmental temperature between 0 ~ 40 avoid direct sunlight and clean air.

7. Responsible for the cell maintenance of professional engineers who recommended the implementation of the battery under the guidance of professional engineers perform maintenance or requested, to avoid electric shock from happening.

Simple tips that are given in the above may help you to maintain the ups battery. Besides, due to the self-discharge characteristics of lead acid batteries, it is recommended you charge them every three to four months of storage. Otherwise, permanent loss of capacity will occur between 18 and 30 months. To prolong shelf life without charging, please store batteries at 10°C (50°F) or less.

If you want to know more about UPS battery, please visit Leoch International, which is a public company of China, manufacturing varieties of lead acid battery. The company is reliable and dependable which has these business ethics: reasonable price, reliable quality, timely delivery and friendly service. If you are interested in the company, just visit http://www.leoch.com

2011年7月8日星期五

Steps to Fix Lead Acid Battery

Do you have a motorcycle or car? If you have one, I think you should know a little about lead acid battery. Because the motorcycle and car all use the starting batteries which is one of lead acid battery to get started. Many people always ignore the maintenance of these batteries, so they might corrode. Excessive heat might also damage your battery. So we need to do something to avoid that.

Lead acid battery uses the electrolyte of sulphuric acid to store electric energy. It is well known that sulphuric acid is dangerous for health if it contact you. These batteries will self discharge if they are stored for a long time, even become sulfation. If so, the life of your lead acid battery will be shortened, even not in use. When this happens, it is important that you know how to fix it.

Here are the steps you can take to fix your lead acid battery.

1. Prepare your equipment. You will be needing safety equipment. These are normally gloves and goggles. You will also need a screwdriver. A large, flat screwdriver is best. Battery acid tester is needed to test the ratio of the acid in your battery. Last, but not the least, a mixture of two parts water and one part sulfuric acid to replenish the acid in the battery.

2. Prepare the battery. Upon checking your battery, you will find six battery cells there. Each cell has a cap. Remove the cell caps using a screwdriver. This will let you see into the cell compartment. Prepare to use the tester on the battery acid. The most common testers are those that use a dropper. You will find that the dropper has colored balls inside.

3. Check the level and ratio of the acid. Get a sample of the battery acid. By using the dropper, you will determine the level and ratio of the acid by checking the color and number of the balls that are floating in the dropper.

4. Refill the acid until it reaches its proper ratio and level. If you find that one of the battery cells has a low acid level, you must refill it. You can determine this by checking the top holes of each cell. When you do this, remember never to use just water. This can badly damage the battery cells. You can use a fresh acid mix. Ask a battery expert about this. After refilling the battery acid, change the plates of your battery. You can do this by a group or individually. Afterward, charge the battery using a trickle charger with 1-amp settings. If this does not work, proceed to the next step.

5. Prepare the ingredient to fix the rust problem on the lead acid battery. Buy magnesium sulfate. This is the primary chemical used to remove the rust from the lead. You will find this in any local pharmacy or department store.

6. Combine magnesium sulfate with a quart of distilled water. Before you combine the two, make sure to heat the distilled water to about 150 degrees. Afterward, mix the magnesium sulfate with the water. Use only about 10 tablespoons full. Stir the water until you dissolve the Epsom salt.

7. Place the mixed solution to the lead acid battery. After mixing the two substances, pour it inside the battery. Use only a half quart of the solution you made. Afterward, place the caps back. Shake the battery thoroughly to mix the substances.

These are the steps on how to fix a lead acid battery. To avoid future battery problems such as sulfation, it is best that you take care of your battery properly. If you want to know more about lead acid battery, you can just visit http://www.leoch.com

2011年7月7日星期四

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2011年7月4日星期一

Infinite Possibilities of Lead Acid Battery

Do you know why the lead acid battery sometimes also is called “starting batteries”? Because they were invented by a French engineer in 1850 and since then they are the market leader in the automotive industry, despite numerous discoveries in the field. Has been used for over 140 years, lead acid batteries are reliable and dependable. They are currently the most common energy source used to start vehicle engines and to supply electricity to everything electronic in a car when the engine is off.

Lead acid batteries store energy for later use by saving power from a chemical reaction that occurred between the two different materials of the positive and negative plate placed in the electrolyte. In a normal lead-acid battery, the voltage is approximately 2V / cell, so a total of 12V. The battery current is released as soon as there is a circuit between positive and negative terminal. This process makes rate of self-recharge to be at about 40% in a year.

Nowadays, with science advancing fast, there are many technologies and types of lead-acid batteries. For example, the newest type of battery is Absorbed Glass Mat batteries. Those batteries are more dependable, their emissions are at a very low level and also their self-discharge is extremely little, only 1-3% per month.

As China’s automotive, telecommunications, electricity, transportation and other fast-growing industry, especially in the past five years, lead acid battery market is not only occupy the leading position, but also to maintain the annual growth rate of 15%.

The emergence of electric vehicle lead-acid battery is not an end, but rather to provide a new profit growth point. Distinguishing the next decade, the new hybrid is expected to reach 9.6 million annual sales levels, market share will increase to 10.2%, special vehicles will also have 20 billion yuan in the future market. But now, in these small electric cars and hybrid electric vehicles in the special 95% use (0) (0) Comment this article

Other reviews initiated Wealth forum topic information. Please enter verification code lead-acid batteries. Lithium car you want to completely replace lead acid battery market, as well as through a period of time. Therefore, a large number of electric cars to make lead-acid battery market is likely to market capacity has actually grown.

The same situation also appears in the field of electric bicycles. China’s electric bike is about 110 million to maintain, as an important means of transportation, has maintained a nearly 20% annual growth rate. Distinguishing expected in the next 5 years will form the applications of about 80 billion yuan market, in which supporting cells 16 billion to replace 64 billion battery markets.

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