Each Component of VRLA Battery Construction Affects its Life

Have you ever heard of VRLA battery? Do you know its construction? I think if you are not professional, it's hard to understand it. It doesn't matter. I will talk about it in detail and you can first know some general knowledge. Each component of battery construction is very important for its life and capacity.

There are some factors affecting the VRLA battery performance. In fact, they are also the components of VRLA battery.

1. Battery construction. The VRLA battery is consisted of positive and negative plates, AGM membrane, bus bar between positive and negative, electrolyte, safety valve, cover and shell. These components are very important for its life and capacity.

2. Grid Alloy. VRLA battery adopts Pb-Ca alloy as negative plate, while positive plate uses Pb-Ca, Pb-Sb and pure Pb etc. The Pb-Ca, Pb-Sb affects its cycle life. It is better to choose low antimony alloy battery in these areas where often has power interruption because its reliability is very good.

3. Thickness of Grid. The designed life depends on the thickness of positive plates.

4. Safety Valve. It is a critical component.

5. AGM membrane. It directly affects the VRLA battery life and uniformity of capacity.

6. Material. The material of VRLA battery's cover and shell includes PP, ABS, and PVC. Among them, PP is the best.

7. Electrolyte. It's required to log the data of adding acid. We should ensure that the reaction can meet the quality demand.

8. Coated Board Craft. It's to ensure the plates thickness and each active material's uniformity.

9. Sealed technology. The VRLA battery sealed technology includes batteries covered in sealant, a sealed column, battery cover with water permeability, and safety valve sealing.

10. Efficiency of oxygen compound. AGM battery includes good oxygen compound efficiency. According to relevant standard test, it is more than 98%. Hence, it comes with good maintenance performance.

The following factors can affect the VRLA battery's performance. They are also a part of VRLA battery and indispensable for its battery construction. If you are luck to visit a VRLA battery manufacturer, I think you will see these components clearly and easily understand its reaction.

More useful knowledge will be written here. Hope you can get the useful information that you need. Welcome to visit again.

About the Author

Hi, this is lissa, and I am try to tell something about leoch battery, such as automotive battery, motorcycle battery, golf carts battery, motive power battery, etc, hope you like it. Most of them are lead acid battery. And if you currently have some suggestions or advices, I am really appreciate if you tell me.

Life Expectancy of VRLA Battery

Valve regulated lead acid battery (VRLA battery) utilizes a dilute sulfuric acid electrolyte which is immobilized so as to eliminate the hazards of spills and leakage and which facilitates an oxygen recombination cycle. The oxygen combination cycle eliminates the need to add water throughout the battery's life and improves its safety of operation. VRLA battery doesn't require regular addition of water to the cells, just different from the general lead acid battery. However, how long does the VRLA battery last for? The purpose of this article is to review the life expectancy of VRLA batteries.

The majority of VRLA batteries used in Uninterruptible Power Supply (UPS) applications have a five year design life. This design life is the basis for the manufacturer's pro-rated warranties.

The service life of a battery is the actual time span from the date of installation until the battery capacity drops below 80% of its rating. VRLA batteries that are well maintained and are installed in a properly conditioned environment, typically have a service life = 70%-80% of their design life.

Factors that adversely affect the life expectancy of a VRLA battery include:

1. a.      High Ambient Temperatures:

The optimum temperature for a VRLA battery, upon which most manufacturers' warranties are based, is 77℉（25℃）. For a battery maintained at constant charge, there is a 50% reduction in life expectancy for every 15℉ increase in ambient temperature above 77℉. The batteries must also be installed with the proper spacing per the manufacturers' recommendations in order to maintain the necessary ventilation.

1. b.      Discharge Cycles:

VRLA batteries are rated for a certain number of deep discharges and shallow discharges. The load during discharge, length of discharge, rate of discharge, rate of recharge and recharge time all factor into the affect on life expectancy. Manufacturers rarely publish specific data on the number of discharges for which a battery is rated; however, VRLA batteries are typically designed for 2-3 deep discharges per year and several hundred shallow discharges per year.

1. c.      Charging Characteristics

VRLA battery in UPS applications should be maintained at a float voltage that does not exceed the maximum set by the battery manufacturer. Overcharging the batteries will cause degradation and eventual failure. Constant overcharging can lead to Thermal Runaway, in which a continuous cycle of rising temperature and rising current result in venting of gases and a possible rupture of the case. If hydrogen gases are allowed to escape in a large enough concentration, a source of ignition could cause a fire. 

If you want to know more about VRLA 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. If you are interested in the company, you can search for more information in the internet. The office website is http://www.leoch.com.

About the Author

Hi, this is lissa, and I am try to tell something about leoch battery, such as lead acid battery, GEL battery, VRLA battery, UPS battery, motorcycle batteries, golf cart battery, car battery, etc, hope you like it. And if you currently have some suggestions or advices, I am really appreciate if you tell me.

Which Role the UPS Battery Plays On?

Do you ever wonder what a UPS battery is? I don't see the battery but I just find them in the internet. They said ups systems store power so that when outages occur, in fact they can act as "batteries" and allow you to still use your computer without losing any data. UPS batteries usually last for hours, depending on the quality of the battery.

How does the ups battery work? UPS batteries are placed in between the socket and the equipment. When there is electricity, the battery is continuously charging and collecting power. When power goes out, the UPS battery will automatically switch on, saving you from data loss. Nowadays, UPS batteries are no longer used only for computers. High-powered devices and even telecommunication devices also have corresponding UPS systems for protection.

In fact, an uninterruptible power supply (UPS) is a device that allows your computer to keep running for at least a short time when the primary power source is lost. It also provides protection from power surges. A UPS contains a battery that "kicks in" when the device senses a loss of power from the primary source. If you are using the computer when the UPS notifies you of the power loss, you have time to save any data you are working on and exit gracefully before the secondary power source (the battery) runs out. When all power runs out, any data in your computer's random access memory (RAM) is erased. When power surges occur, a UPS intercepts the surge so that it doesn't damage your computer. Software is available that automatically backs up (saves) any data that is being worked on when the UPS becomes activated.

If you want to buy a ups battery, you'd better ask yourself three questions: Is it going to be used indoors or outdoors? How long will it supply power? Does it match the voltage output? Make sure you purchase the appropriate one to prevent accidents. Also make sure that your UPS battery has a built-in surge suppressor and warranty for added protection. Finally, do not just settle for any cheap brand. Invest in a high-quality UPS battery, even if it is a bit more expensive. A cheap but faulty unit will only damage your appliances and devices (sometimes beyond repair), costing your more money in the long run.

Of course, before you are going to plan to buy one, I think you need to know some maintenance knowledge about the UPS battery. The most common type of battery used in today's UPS is the valve-regulated lead acid battery (VRLA). The standard lifespan of VRLA batteries is three to five years. However, expected life of these batteries will vary greatly due to the environmental conditions, number of discharge cycles, and adequate maintenance. Have a regular schedule of battery maintenance and monitoring to ensure you know when your batteries are reaching the end of their life. So if you don't want to waste your money, I think you you'd better know some important information about UPS battery and then you can take good care of them.

About the Author

Hi, this is lissa, and I am try to tell something about leoch battery, such as lead acid battery, GEL battery, VRLA battery, UPS battery, motorcycle batteries, golf cart battery, car battery, etc, hope you like it. And if you currently have some suggestions or advices, I am really appreciate if you tell me.