2011年11月30日星期三
2011年11月29日星期二
some basic information about car battery
A car battery works just as the life of your car. If your battery is dead, your car also gets damaged at the same time. It is very important that you choose your battery that does not harm your car and at the same time works nicely for you. There many minor things that are needed to be given a thought while purchasing your battery. If you just look for quality, it is not enough for you. You must go far the battery which is not less than six months old. Before buying your battery, it is essential that you consult your car manual and read it very carefully. Batteries are an excellent emergency power source, but require some basic information to use properly. They are electrochemical devices. They have plates, usually metallic, and either a solution or a moist compound between the plates. A chemical reaction takes place in the battery when it is discharged that produces a flow of electrons out one plate on the negative side and into another plate on the positive side.
If you want to know more about MF car battery, you can just visit Leoch International, which is an excellent battery manufacturer. 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.
2011年11月27日星期日
A short conversation about VRLA battery
I know tomorrow is weekend so I am very happy to work hard. The HR manager talked to me this morning and asked me some questions. I don't know if my answers gave her satisfaction. But who care? I just do what I really need to do. So let's start the short conversation about VRLA battery.
In fact, VRLA batteries are classified as VRLA gel battery and AGM battery, which uses the same construction and different electrolyte. However, the same advantage is long cycle lifetime. AGM battery adopts high quality AGM separator to extend cycle life and prevent micro short circuit, while gel battery uses special lead-calcium alloy to boost up the grid anti-corrosive performance and extend the battery using lifetime. Most people will choose VRLA gel battery because they need less maintenance. They have long time discharge, long storage time, and high thermal capacity to reduce the risk of thermal out of control and drying hard, which can be used in bad environment. So they can be used in cold weather, and you don't worry about those batteries’ usage in winter.
About this short conversation, I think it's over because I also know a little. Hope this is useful for you. When I collect more information about VRLA battery, I will write here next time. If you are interested at my blog, I wish you will come again.
2011年11月23日星期三
Wednesday belongs to golf cart battery
More and more electric golf carts are found on the golf course, which also proves that lots of people like the game of golf. Those vehicles are electrical devices, so they are completely powered by batteries. In other words, golf cart batteries are the soul of any cart. If there is any problem with a battery, your cart can't move any more, then you have to push it through the grass.
Today is Wednesday, the center of a weekday. It means that the weekend is coming. So it's a happy day but I get bad news. It doesn't matter. This is not able to affect my emotion to write my article.
Ok, go on this topic. About golf cart batteries, we always pay attention to three points, which is check, maintenance and charging. Check if there is any battery acid leaking or crack found outside. The battery terminals are also required to ensure if they are in good contact. Don't forget to check the liquid level. If it's lower than the standard, you have to add some distilled water. Be careful not to overfill, or the sulfuric acid will hurt you. When you find anything wrong with the golf cart battery, you always need to do some maintenance to protect them. For example, if there is battery acid leaking, you should clean up and neutralize them. Mix a solution of a quart warm tap water and a half of cup of baking soda. Use the solution on a soft cloth and clean the spill. Then Keep those golf cart batteries clean. However many people like to charge the cart when they go home. Then keep the charging all the night. In fact, you need to calculate the time. Don't over charge it, or it affects its performance. Deep discharging will shorten the service life of any lead acid battery, including the golf cart batteries. So when it's close to the end of power, charge the cart right now. Don't charge it after you use up its power. If you golf cart batteries deeply discharge, even one hour, it still has a great influence on its lifespan. Remember that never over charge or deeply discharge it. The last point is to store it after you give them a fully charge.
Is it useful for you? I have no idea. It's all I know at present. Any other new information if I get, I will share with you here at the first time.
2011年11月22日星期二
2011年11月21日星期一
Shorten the Lifetime of VRLA Battery
In fact, VRLA battery is always used in the ups system and its lifetime is defined as the period of time in which a battery is capable of being recharged and retains the charge applied. Once the battery is no longer capable of being recharged or cannot retain its charge properly, its lifetime reaches its end and it becomes a 'used battery' for the application it was designed for.
The lifetime of a VRLA battery is very dependent on its rate, conditions and kind of use. It is estimated to be between 1 up to 5 years. Depending upon manufacturer & product, expected life of all lead acid batteries will be cut in half for every 10-15 degree (F) rise in temperature over recommendation (usually 77 degrees F). For VRLA types, impact of excessive heat is most severe because it will lead to dry-out and open circuit failure, and in worst case scenarios in combination with older chargers, can contribute to thermal runaway, with explosive results.
Most UPS systems cycle batteries not just during outages, but also for changes in load levels as well as large dips in input voltage. In fact, many battery companies now limit warranties based upon the number & duration of these discharge cycles. Charge voltage, current and duration also has impact on VRLA reliability. Older or defective chargers can overcharge or add ripple current leading to heat buildup and premature failure.
Clearly, it is good idea to keep temperature controlled to 77 degrees F or less, and this is easily and regularly done. So temperature also has an important influence on the VRLA battery. Of course, if you don't take care of these batteries, it also will shorten its life. All the factors could reduce the lifetime of VRLA battery.
If you want the VRLA battery for longer time use, you should check and maintain it on a regular basis. Don't forget to store it in a dry place with good ventilation. Never over charge it. Don't let it deep discharge. So today it's all. See you next time.
2011年11月20日星期日
2011年11月16日星期三
Must a ups battery need to be maintained?
In an uninterruptible power system (ups), the battery can be said to be the backbone of the system, otherwise, ups is only a constant voltage and constant frequency power (CVCF). Ups can supply power that because of ups battery. When the mains abnormal, the inverter directly convey the ups battery’s chemical energy into AC power, the electrical equipment run continuously.
At present, maintenance free sealed lead-acid batteries use in small and medium ups power supply, over 50% of the total cost of ups power supply. Data shows, UPS’s production technology is relatively mature, so about 50% of the ups power failure relate to ups battery. In china, electric power supply grows maturing, especially in city, rare phenomenon of long time power outage, and many important departments adopt dual power supply and diesel generators to ensure electric power, which makes people relax on the ups battery routine maintenance. Most of ups batteries usual lack of effective maintenance, and don’t know the battery’s heath status, resulting in can’t work as designed delay once a long time power outage. On the other hand, the user’s load is constantly increasing, more and more concentrated power density, which the load of ups also corresponding increase. The issue of battery delay is not enough more prominent.
Ups battery failure mainly as voltage is insufficient, insufficient capacity or instantaneous discharge current is satisfied with a set start. Uninterrupted power system in the process, people often one-side that batteries are maintenance free and not take this seriously. Thus, strengthening of the ups battery use and maintenance to extend the battery lifespan and reduce the ups system failure rate has become increasingly important.
2011年11月14日星期一
2011年11月13日星期日
you should know CCA to choose a correct motorcycle battery
In general, you will type the keywords "motorcycle battery" or "motorcycle battery online shop" in Google if you are planning to buy one online. As a matter of fact, before you buy that, you should know some brand online shops, such as Amazon, ebay, or alibaba, etc. Of course, there are some battery manufacturers who also have online shop, such as LEOCH Battery. Then you will have a look at these motorcycle batteries. At the same time, you also will pay attention to their features to ensure what are suitable for your motorcycle. After a short look, it's time for your decision.
This process seems perfect but it's not the truth. In order to choose the right size motorcycle battery, you'll need to know the cold cranking amps (CCA) of your bike. Technically speaking, CCA is the number of amps a lead acid battery at 0?F can deliver for 30 seconds and maintain at least 1.2 volts per cell. Once you determine the required CCA, you'll need to measure the length, width, and height of the cavity to ensure a correct fit.
When you know the CCA, you won't get the wrong motorcycle batteries. I don't think you are willing to admit that they are too bigger to use. So keep this information in mind when you are going to buy motorcycle batteries.
2011年11月10日星期四
2011年11月9日星期三
How to replace a new VRLA battery for electric wheel chairs
VRLA batteries are known for safety and are used in scooters, wheelchairs, motorcycles and cars to prevent acid spills on engine components. Electric wheel chairs use VRLA battery to prevent acid spills when traveling on uneven ground or turning over. In general, VRLA battery can be used for about 3-5 years. So you have to replace a new one when they are disabled. Here I will share my experience to help you to replace a new VRLA battery for electric wheel chairs.
1. Turn the wheel chairs off and park it.
2. Place an adjustable wrench on the negative black battery terminal nut. Turn the nut counterclockwise to loosen it and pull the battery cable off the battery. Repeat this to remove the positive red battery cable.
3. Lift the battery out of the battery box by the handle in the center of the battery.
4. Grasp a battery terminal cleaner with one-half in each hand. Twist and pull off the cap. One half has a pointed metal brush and the other half has a round metal perimeter with a hole in the middle.
5. Insert the pointed brush into the battery cable ends and turn it left and right to clean them. Insert the round end's hole onto the battery terminals and turn the cleaner to clean the exterior of each terminal.
6. Place the VRLA battery in the battery box. Position it with the negative and positive terminals on the same side as the original battery.
7. Place the positive red battery cable on the positive battery terminal. Turn the nut on the cable clockwise to tighten it with an adjustable wrench. Replace the negative black battery cable in the same manner.
Congratulations! You have successfully installed the new VRLA battery on the electric wheel chairs. You see, this just takes a little time and energy to finish that. It is easy for everybody. So go to see my blog and install your battery.
2011年11月7日星期一
My car battery can't be charged because of sulphation
God, I can't start my car. My plan will fall through. I should have driven my car to the park with my friends but the car drops the ball. I am sad I can't go there. Then I start to check it. When I find it's all because of the car battery. I am so surprised.
I charge the battery with a charger, but the indicator light is unlit. I guess the light is broken. Then I leave it alone. But after several hours, there is no reflect on the battery. In general, the car battery will be a little hot, but nothing is found. That means this car battery can't be charged anyway. I have to spend extra money to buy one although I am not willing.
When I are planning to throw it away, I find there are some crystals on the surface of any car battery. I remember that one ever told me it’s sulphation if the crystals are found. Oh, my god. It must be over discharging. The professional said, "The reason behind this is a chemical process called sulphation. When a car battery is charged this chemical process cannot take place. However, when the battery's voltage falls below 12.4V this process begins. The process causes sulphur crystals to form on the lead plates inside the battery, which in turn increases the battery's electrical resistance. The longer this process is allowed to continue the worse the effect. Eventually the battery will become so electrically resistant, that you will be unable to charge the battery, let alone draw power from it."
This makes me crazy. Bad car battery, and no maintenance, is so terrible. I think I need to learn some useful knowledge to help me get out of this trouble.
2011年11月4日星期五
2011年11月3日星期四
Never leave your automobile battery in a discharged state
When a automobile battery has been fully charged it can quite happily be stored away for 2-3 months. However when it is flat, storing it for this period would almost certainly damage it beyond repair.
The reason behind this is a chemical process called sulphation. When a automobile battery is charged this chemical process cannot take place. However, when the battery's voltage falls below 12.4V this process begins. The process causes sulphur crystals to form on the lead plates inside the battery, which in turn increases the battery's electrical resistance. The longer this process is allowed to continue the worse the effect. Eventually the battery will become so electrically resistant, that you will be unable to charge the battery, let alone draw power from it.
If this process is caught early you may be able to salvage the automobile battery using a battery charger with a pulse charge function. This will partially break down the sulphur crystals but the battery will never reach its full capacity again.
Remember that if your automobile battery fails due to sulphation it will not be covered under warranty. This kind of failure is classed as damage caused by the user through neglect.
So take care of your automobile battery, and it will take care of you.
2011年11月2日星期三
订阅：
评论 (Atom)