digital batteries

1, the pricing of common sense

Here, we must first note that the load is an important step in the use of rechargeable batteries. Load appropriate and reasonable to extend the battery life is very good, while the random brutal life of the rechargeable Laptop battery will be greatly affected. On one side, said the current lithium batteries are based on the basic package of each product individually and not jointly, if different products to provide their own equipment for loading, and not common, when in service as long as you can use to follow their instructions. While it is the introduction of the battery refers mainly nickel-cadmium batteries and nickel-hydride batteries in metal.

The battery compartment on nickel and nickel hydride batteries, metal, there are two ways in which we are known as “fast charge” and “trickle charge”. Quick charge and trickle charge is the charge of an important concept, and only learned about the fast charge and trickle charge in order to properly grasp the load.

Firstly, the fast charge and trickle charge is a relative concept. Some people have asked, my charger with charge current of 200mA is not load quickly? The answer is not absolute, should have answered some batteries is fast charging, and some batteries, it is simply loaded slow. So how can we judge fast charge or slow charge it?

For example, a 5, Ni-MH power capacity IBM ThinkPad T41 battery of 1200 mAh, while the other section is 1600mAh. We have a battery capacity is called 1B, 1C see is a logical concept, the same 1C, are not equal.

During loading, the load current is less than 0.1C, we called the trickle charge. As its name implies, refers to the current very low. In general, the burden of maintaining the battery can be comprehensive without harming the battery, but the trickle charge to use the time spent far too long, so rarely used alone, but rather, and other pricing methods used in combination.

0.1C, 0.2C charge current between the two, we called the trickle charge. Load current is greater than 0.2C is less than 0.8c is a fast charge. When the load current is greater than 0.8c, we call it super-fast loading.

Precisely because the concept of 1C is a logical rather than absolute values, therefore, according to 1C slow conversion of the fast charge is a charge of relative value. Mentioned in the previous example 200mA charging current for Dell Inspiron 1420 battery 1200mAh fills slowly, but it is for the 700mAH battery fast charge.

Aware of the concept of fast and slow filling, we also need to understand the situation charger can charge the battery properly. Charger on the market can be divided into two types of constant current charger and automatic battery charger

2, constant current charger

Constant current charger is the most common chargers, nickel-cadmium batteries of the time we started to use the charger with constant current. Constant current chargers typically use a load current slow, its use is relatively simple, just put the battery in the battery can be charged storage. Note that the calculation of the charging time must be accurate.

The calculation of the charge time has a simple formula: Hour = 1.5C / load current. For example: on the charger 1200mAH hp Pavilion ZE2000 battery charge current of 150mA, then the time to 1800mAH/150mA equal to 12 hours. Of course, in many cases can not be calculated exactly the time we can choose the nearest half an hour to facilitate the chronograph. For example: charger current 160mA, right 1400mAH battery charging, then time for 2100mAH/160mA about 13 hours, instead of calculating the points.

Construction of a simple constant current charger, labor stability, is a good way to charge little effect on battery life. But it also has its limitations, we must first calculate the time, while nickel-metal hydride batteries with a capacity for growth, the constancy of the time course load required for longer and longer, the use of ’cause a number of drawbacks. Thus, in recent years, rapid charger system is also very popular

3 autoloader and quick

Fast automatic charger in these two years are always better received, he has the speed of loading, security and so on. But there are also some people have doubts about this because of the fast chargers are essentially using current fast charge to charge, the impact of these people will be scared about the life of the sony VGP-BPS5 battery. So the current situation?

Firstly need to be sure that the current charging high impact on the life of the battery is very low, and in many cases, we use fast charge and even ultra-fast load, the current load can sometimes reach 2C or higher. Mainstream is not a killer battery, the real impact on battery life is the heat capacity at high current generated during charging.

We charge the battery when using the nominal voltage above the battery voltage to make, but the battery itself, the load current produces a back EMF, it is part of the current to compensate the the back-EMF and in vain for power and transformed into heat. When the load current is larger, more electrical energy is converted into heat, charging the higher temperature. Too high a temperature on rechargeable batteries is harmful, and a slow charger with constant current, because it is slow charging, the heat generated within the control box, so no need to take special measures. But in the ADF rapidly using a fast charge current will generate high temperatures. Therefore, currently available rapid charger automatically have adopted various methods to reduce the load when the temperature, typically using the cosine law is not a constant current load, but it has intensity current wave of cosines The changes that will reduce heat buildup, thus controlling the temperature within a certain range. Since this type of charger is no longer using the constant load current, charger current is constant in the past, a clear distinction between

To use the quick charger Another problem is that when the charging time is counted if you forget to stop after charging damage the toshiba PA3284U-1BRS battery charger to be much larger than the current slow constant overload resulting damage. Therefore, to solve the problem of overload, voltage fast charger is generally used as the France and other methods to determine the slope to determine if the battery is nearly full, these chargers are used to control the circuit, or IC chip to perform this task. When the battery is almost full, the control circuit will automatically slow charge mode, trickle charge the battery. Used trickle charge current of the battery on the advantages are obvious, the one mentioned above, can trickle charge the battery charge very complete, followed by anxiety billing question, if the maximum use of chargers such advantage n is not obliged to go computing time. The specific use to consult the manual for instructions specific to avoid improper operation.

It is a branch of the fast charger is ultra-fast charger, line battery charger applications of these small, design, structure and processes are very complex, so the prices are quite expensive.

On special occasions, people need in a time short of a good rechargeable apple M8403 battery, which requires the use of ultra-high speed charger. As the ultra-fast charger requires a lot of load current, and some have even used the 2C-3C load current, the heating problem is particularly serious, just by using the cosine wave accusation is not enough, both of these chargers adopted a cosine wave in the post – Insert a landfill very short this approach. This approach can reduce the back-EMF due to the consumption charge current generated by the accumulation of heat, so an additional control of temperature.

4, discharge

Were introduced to a memory effect of rechargeable batteries, we also know that when the memory effect gradually accumulated, would be the actual use of the battery capacity has dropped significantly. To reduce the memory effect caused by the negative role of an effective discharge. In general, nickel-cadmium batteries because of the memory effect most obvious, it is recommended to use 5-10 times after repeated charge for a discharge, while nickel-metal hydride memory effect of batteries must be better, you can charge made after the use of 20-30 times per discharge.

On the market a number of high-end loader to carry out their functions, but the vast majority of feeder medium and low Aspire 3000 battery is impossible to perform functions, then how can we do? To understand the principles of the landfill, we can also try to have the battery discharge.

We already know that nickel-cadmium batteries and nickel-metal hydride battery nominal voltage is 1.2V, but in fact, the battery voltage is a change of values, the adequacy of electricity around the volatility of 1.2 V or more. Generally fluctuated between 1V-1.4V, different brands of batteries vary in regularity, the fluctuation of voltage is not fully consistent with

Discharge the battery is to use a low current discharge, the battery voltage falls slowly to 0.9V-1V between the discharge should stop. Not recommended under the discharge of the battery of 0.9V, it will cause excessive discharge, the battery is not irreversible damage, said on a rechargeable battery is not suitable for use in appliances to the remote, because the use of the remote being very low for a long period of the remote is easy to use cause an excessive discharge. Following a performance of the VGP-BPS9A/B battery, you’ll be pleasantly surprised to find the battery capacity has recovered its original level, so when the battery capacity has been found to decline, it is preferable to a landfill.

His discharge the battery so there is easy way to make a small bead like electric charge, but you must use the meter to monitor voltage changes, to avoid excessive discharge.

For the shipper to choose the shipper to choose fast or slow charger with constant current, which depends mainly on the orientation of their own use. Such as the frequent use of digital cameras and other equipment from a friend, you should choose a quick charger, to meet time requirements, and even ultra-fast charger, you can buy, but only the use of portable devices listening as a friend, a constant current charger will be able to meet the needs of

In controlling the correct charge and knowledge of the landfill, everything will be better able to use their own rechargeable batteries. Please do not adhere rigidly to a fast charge.

2, focusing on the quality of the installation. The quality of installation, including storage, installation, capacity, and many other aspects of the experiment, so the transportation and storage must be careful not to collide during the installation process should pay attention tandem with the Dell Inspiron 1420 battery of the match between the battery carefully very unequal stakes race. In the extreme tightening of the stack, the force can neither too large nor too small. Will a bunch of very large forces in all loops of copper excess, too small, it follows from the convergence of poor contact with the fuel cell to install the best use of a convoy of supplied power was the key, or in accordance with manufacturers to provide a reference kilogram force, using the appropriate key kg. The facility should also be attentive to DC battery and the screen in each group between the battery positive and cathode, anode and cathode of the length of the line as much as possible to maintain the high discharge current battery, a balance between the two groups.

Must be put into service until the electricity surcharge. The installation of sealed batteries generally dates from the date of manufacture of a longer time, sealing the battery after long-term self-discharge, the significant loss of capacity must be based on a simple float hard to restore its ability origin. In addition, only difference in the size of the battery discharge, resulting in the proportion of the voltage across the battery so there is no balance, is not set service to complement the first, individual cells will be further expanded in the back of the hp PB992A battery or the phenomenon of anti-pole.

3, improving the quality of maintenance

The maintenance staff must fully understand the valve regulated lead acid batteries in the product specification of the requirements under the principle of engaging in maintenance work, improving the quality of maintenance.

⑴ temperature of the battery capacity discharge, life, self-discharge, greater shock resistance and other aspects, although the supply of power switching function with temperature compensation, but its sensitivity and magnitude, after all limited. Therefore, the hall of the battery must be installed in air conditioning and temperature control between 22 ℃ ~ 25 ℃. This not only extends battery life, but also has the best battery capacity.

⑵ once a month should be checked whether the charging device operating parameters under qualified, with or without alarm fault. In any case, the sony VGP-BPS2A battery float voltage must not exceed the manufacturer for a floating charge given, and by changes in temperature, at any time using the factor of voltage regulation of ± 3 mV / ℃ to adjust values of float voltage.

⑶ right valve view of the unbalanced nature of the impact of lead acid batteries must be used to float the lower limit for the floating voltage.

⑷ imbalance in the battery than the depth of discharge after the battery is running in one quarter, should be a balanced approach to supplement the battery. In the equalizing charge should pay attention to changes in environmental temperature and the temperature of the environment, but will decrease the value of balanced voltage settings. For example, if the temperature increases 1 ℃, then the equilibrium value of the charging voltage is necessary to reduce the 3mV.

⑸ try to use free pulse of the way “backwards battery” to charge the batteries to promote the activation and recovery.

⑹ careful maintenance, the valve regulated toshiba PA3191U-4BRS battery before going into production should be carefully recorded each voltage single cell and data on the internal resistance as raw data kept on file for six months for each subsequent performance is required to run the data compare with the original data, if the abnormal situation should be handled promptly.

⑺ must be measured once a month, the battery voltage and the voltage across monomer. Batteries sealed terminal measuring voltage can be in the floating state should be conducted in the state of discharge. Sealed battery voltage terminal to reflect the good working conditions 10 is an important parameter. Floating state, the measurement terminals of the battery voltage, due to the presence of the applied voltage, measure the voltage across the battery could easily lead to false. Although some anti-pole or open-circuit the battery can also measure the normal values (in fact, the applied voltage in the battery caused by the voltage difference at both ends), which is easily lost in the exchange sub electrical substations and power plants caused by the accident. Regularly discharge the voltage across the apple A1012 battery under the state measurement, this is completely avoided.

⑻ To ensure that the battery has sufficient capacity to conduct an annual test of the resilience (that is the great burden of Da-Fang), so that activation of the material inside activation of the battery to restore the battery capacity. The main method is to charge the battery from the machine into the battery pack controlled both ends of the load, while the current resurgence of the battery 0.1 times the rated capacity of each half-hour recording time voltage of the battery until the battery voltage to 1.8V / only (for 2V / only a single battery) or 10.8 V / only (for 12V / only a single battery) after the cessation of discharge, and save time. Put it aside, at 2am, then the same size of current on the battery to charge at constant current, the battery voltage up to 2.35V / only or 14.1V / just to keep the voltage on the load Battery 8am balance is a constant voltage of 2.25V voltage read / only or 13.5 V / only to perform a floating charge. The above method, you can make 80% of battery capacity due to the inclusion of the safe operation of the battery capacity can also be released for 30% to 50%, which should be verified and the discharge curve of the Aspire 3000 battery.

⑼ VRLA battery life is running in the 1 / 2, the need to appropriately increase the frequency of testing, particularly for single 12V battery to increase the test. If the battery internal resistance of a sudden increase in value or voltage instability measure (in particular, to two decimal places) should immediately as a “behind the battery” to carry out an activation treatment.

⑽ on a regular basis to check whether the onset of valve regulated lead acid batteries deformation and abnormal heat, carefully check the safety valves have been around the stain spray in order to determine if the valve Security tightened or damaged.

⑾ Battery capacity alone is not enough, because in need of replacement, only once replaced all, not just performance alone is not enough to replace the sony VGP-BPS5 battery down, otherwise they will be affected by imbalances in the internal resistance of batteries all the band playing drums and shorten the entire group of living cells.

⑿ not only the increase or decrease the number of single charge of battery cells, resulting in the ability of imbalance single battery charge and inconsistency, which reduces battery life. If the whole group as part of the stack to feed others, or the charge is not together with the discharge stack.

⒀ use of technical means to strengthen surveillance, such as the use of batteries on monitoring devices online, real-time monitoring of battery condition of employment. Pairs of substations unattended must also be sent to the central monitoring of information collected, the timely warning unusual processed quickly.

In short, we must attach importance to the maintenance of valve-regulated lead acid batteries, according to the different characteristics of valve regulated lead acid batteries, valve lead acid batteries, which affect a major factor in life and constantly improve the level of maintenance to achieve the goal of improving life in order to improve the sub-stations, power plants and the safe operation of the station level communication.

In the new energy vehicle development in countries and regions around the world have been based on their assessment of different options, research the appropriate technology and Laptop battery development and to encourage support for taking a different strategy. In the current situation as a whole, Japan and the United States and Europe has focused on lithium batteries and fuel cells, but our country to take into account the resources and the maturity of technologies, the accent newly released policies on the promotion of nickel-hydride batteries in metal.

Ni-MH battery to become the object of political support China’s current

In our letter of the Department of June 25, the “new energy automotive manufacturing companies and the rules of access management products,” the vehicle, according to new energy vehicles, systems and key deadlines assembly technology, the degree of IBM ThinkPad R51 battery perfection of the national and industry standards, and industrial degree of difference will be divided into initial phase where the development period, three different stages of maturity of the technology and give Management classified.

According to state regulators, the home-products only in the production of small volumes, and only in approved areas, scope, duration and conditions of model runs, and the operational status of all products for real-time monitoring, product development phase allows the mass production only the approved area, scope, duration and conditions of sale, use, and at least 20% of sales of products running in the real-time monitoring, mature products and conventional products for the Dell Inspiron 1300 battery automobile, “the automakers and ad management product even in the sale and use of the same products with conventional automotive .

This means that in China, December 31, 2010, equipped with lithium batteries and hybrid electric vehicles will be limited to the sale and use areas, use nickel-metal hydride battery and hybrid electric vehicles can be sold and used across the country.

Experts believe that the reason why countries are now central to the development of lithium nickel-hydride batteries, metal, the main reason is that the nickel-hydride technology of metals of the hp PB992A battery is more mature than the Lithium, the most abundant mineral resources, the future of new energy vehicles will track better access to the advertising phase.

“Ni-MH – Lithium-Ion battery – fuel cell,” Industrialization Path

In the three commonly used types of car batteries, batteries lead acid to cause serious pollution of the environment has long been out of the consumer applications, nickel-metal hydride batteries, although the marketing of the integrating the moment, but key indicators of laboratory data were lower than lithium batteries, and the theory Basically, there is no room for; lithium despite superior performance, but still can not be guaranteed safety and the relatively high costs have also affected its business.

Experts predict that the new energy vehicles will be in the “Ni-MH – Lithium-Ion sony VGP-BPS5 battery- fuel cell” industry-oriented development path. From the trend of development and rates, and short-term performance can be achieved only with nickel-hydrogen batteries, nickel-hydride technology of metal drums since the most mature in the next three years, will remain the mainstream new energy vehicles, followed by nickel-hydride technology of metals of the lithium and iron phosphate, hydrogen fuel cells, one third of the world, 5-lithium year and will gradually replaced by fuel cells. Battery giant Panasonic and Sanyo also found that lithium-ion battery can be replaced within 2 ~ 3 years, nickel-hydrogen batteries, mainly due to cheaper nickel-safe hydrogen batteries, has reached high production wide. Lithium batteries also need to continue to research topics such as security, so take time business.

According to economic analysis of Japan Fuji mainstream nickel-metal hydride batteries will be able to continue until 2011, but after 2011, Li-ion toshiba PA3465U-1BRS battery will gradually erode the market share of nickel-hydride batteries, metal The agency predicted in 2009 car-use nickel-metal hydride rechargeable batteries in the world market size than the previous year by 23.7% to ¥ 92,000,000,000, but the 2015 Ni-MH rechargeable battery-vehicle market will be reduced to ¥ 55,000,000,000.

Market demand for nickel-hydrogen batteries to save 2-3 years of rapid growth in

Nickel-technology hydrogen fuel cell, and the industry chain to determine their maturity will be a period of time with the coexistence of lithium batteries, lithium iron phosphate cathode material for lithium batteries allows the emergence of performance and cost advantage has been achieved, but stable, production capacity and lack of effective management of the lack of apple A1175 battery testing continues to be a part of the new energy discourage automobile manufacturers, however, batteries nickel Hydrogen-crossed many years of fighting, technical and industrial chains are quite perfect, in a short period of time can form a stable vehicle support capabilities, and therefore can still be a period of time in vehicles new energy and widely applicable.

According to industry estimates, the market for nickel-hydrogen cell is still expected to get 2-3 years of rapid growth over the next 2-3 years, “10 City 1000″ program, the growing popularity of hybrid cars and export markets overseas for nickel and other factors make hydrogen market demand from the Aspire 3000 battery to strong growth, and when the nickel-hydride batteries, metal and batteries Lithium is still Nanfenbozhong when the nickel-hydrogen batteries will usher in a short period of rapid growth.

Among them, China has launched a “10 City, 1000″ How to get the first batch of nickel demand hydrogen battery market. It is estimated that in “10 City, 1000″ program, about 3200-4000 vehicles, new energy vehicles (including buses and cars) using Chinese-made nickel-hydrogen batteries in three years , bringing a total of about 3.5-4.4 one million kilowatts-hour nickel-hydrogen , VGP-BPS2C needs.

Together, both domestic demand and exports weakened in 2012 after the nickel-hydrogen batteries are gradually replaced by lithium batteries.

Maintaining the pace of R & D policy

In the production of automotive Dell U4873 battery business in China with a production capacity of nickel-hydrogen batteries have represented the majority of companies, including Chunlan Group, Ke-Li Yuan, the Torch High Technology, Hunan Shenzhou share Kane etc., which Chunlan Group is the nickel-metal hydride HEV battery power technology, leading market shares in a leading position in the Torch High Technology and Hunan Shenzhou possessed a certain amount of technical base and position market.

As for the lithium battery, most domestic manufacturers are not capable of mass production, but the planning of the corresponding production has been implemented, it is expected after 2010 are capable of mass production .

Experts believe that technological advances, prices for cars in China and business related to the IBM ThinkPad X60 battery in addition to promoting the industrialization of nickel-hydride batteries, metal, more attention should be some of long term, to devote resources to research and lithium battery development, and maintaining fuel cell monitoring techniques to fill a broader energy market new car is ready.

Lithium-ion battery in 2-3 years, although difficult to replace the nickel-hydrogen batteries, however, not to ignore is the future of lithium batteries replace nickel-hydride batteries in the metal abreast of new energy vehicles. From a global viewpoint, Japan is the international motor current energy news and research cell power and application of more advanced countries, Japan has big businesses in automotive and HSTNN-LB31 battery has invested in building lithium-ion power line battery production, concentrated in the 2010-2011 production. Fuji economy as lithium-ion battery will begin in 2011 to gradually replace nickel-hydride batteries, metal, lithium-ion battery, as no doubt the future of consumer technology path.

Today, Japan In addition to switch focus on lithium batteries, the Japanese cars in the development of new energy and use, particularly in the development of fuel cell vehicles and promotion, many faster than expected China’s internal. Some years ago the Japanese economy, Trade and Industry on development of vehicle fuel cell law and the promotion of a calendar, its strategic objectives are as follows: In 2010, the Japanese used vehicles fuel cell to reach 50000; in 2020 to 5 million; 2030, year to universal access to cars to fuel cell.