Base stations used in batteries from the current situation, the prevalence of rapid decline in battery capacity, life is short, this article caused by the base station of the rapid decline in dell inspiron 5150 battery,dell inspiron 5160 battery,dell inspiron 6000 battery capacity, the cause of shortening the service life of the analysis and discussion and to raise related improvements, in the hope that the operators can be helpful. This article refers specifically to batteries VRLA Battery.

At present, several large-scale from the VRLA battery cell manufacturers in terms of quality, can meet the requirements of the operators, although the battery manufacturers to produce quality, performance differences, the use of from the survey, the battery manufacturers the quality factor should not affect the current of the battery capacity of the base station operator dropped too quickly, the main reasons for shortened life. Because VRLA batteries from the product structure, product performance, the use of the base station batteries and so on-site inspection process a combination of factors, the combined use of the station office, VRLA batteries during normal use of 1-4 years after its capacity should not drop so fast, so I believe that the base station caused by rapid decline in battery capacity, the main reason for shortening the useful life should be put on the battery itself, the use of base stations and base stations use the characteristics of the environment.

According to the current base station manufacturers to end-of-life battery situation anatomy, resulting in end-of-life battery because of the sulfuric acid battery negative plates, and this is the battery capacity of early failure (PCL) of a typical phenomenon. High frequency of base station power, power outages several times a day, or even electricity for a few days, so that the base station after the battery has not been sufficient in the discharge power and discharge cases, rechargeable batteries due to appear. Such as due to a number of consecutive filling, would result in cumulative loss of battery capacity, the base station’s battery capacity will decrease in a relatively short time, the termination of their service life will be faster. The rate of decline in battery capacity with the base station due to charge the battery for a certain number of the directly proportional relationship. Decline caused by the inherent capacity of the battery because the battery discharge is not sufficient in the case of electric discharge and is, after the cathode-generated in the discharge of lead acid can not fully recovered, respectively, into the metal lead and lead dioxide, the positive and anode plate and discharge, so that rechargeable batteries have less, charge less for many times, so that progressively negative plate sulfation, resulting in an irreversible lead sulfate crystallization, especially in the battery off at a depth of discharge, the battery negative plate sulfation more serious, sulfated faster, resulting in negative plate surface shielding, a gradual decline in its function until the failure, resulting in decreased battery life of up to termination.

According to the current size of the battery manufacturer, the production process and technical level, causing the base station battery negative plate sulfation is not the main reason the quality of products, due to normal use in the battery case, dell inspiron 5150 battery,dell inspiron 5160 battery negative plate sulfation longer, resulting in battery difficult to restore capacity. Another analysis from the use of different manufacturers, whether imported or domestic battery, there is the problem. So I believe that the base station caused by sulfuric acid battery negative plates of the main reasons for the frequent power outages in the base stations, often have low current discharge and the depth of discharge have been caused due to charge the battery, due to the occurrence of charge for many times to form a battery charge due to the cumulative , the base station the number of charge-discharge cycle of over-frequent, resulting in irreversible negative plate sulfation. Anode plate of the sulfuric acid is the impact of decline in battery capacity base station, the main reason for shortening the life of the host.

Secondly, the switching power supply set reasonable parameters, the base station battery voltage under-voltage protection set too low, the reset voltage set too low, so even the battery depth of discharge, there were over discharge, on the other hand increased acid battery negative plates, and is Battery capacity dropped to shorten the life of another major cause.

Combination of the current base station switching power supply are set low-voltage isolation protection function or power under the second. When the battery discharge voltage to a certain set value, the switching power supply system will automatically cut off power supply to some or all of the load re-load power supply, to protect the battery discharge, however, to ensure that the battery life. If the battery voltage to protect the value of the minimum set too low, the battery will discharge, there were several times over the excessive discharge and failure to discharge or charge added power would be severely affected by lack of battery life; In addition, such as switching power supply voltage settings have been reset low, the battery will discharge process in the repeated discharge; specific battery voltage to protect the value of the minimum set should be based on the size of the load current settings, the current base station battery voltage to protect the value of the minimum general battery installed in each monomer about 1.8V, and some are even set to each 1.75V. VRLA battery based on the discharge performance of the actual load current combination of base stations, base stations, the minimum battery voltage value should be set up to protect the battery voltage of each monomer around 1.8V. Therefore, at present, under-voltage protection of the base station set up a reference battery voltage is too low, such as base station power failure a long time, the battery will discharge occurred, and even had a small current depth of discharge, and discharge the battery had sufficient power to completely restore the capacity charging time required for longer than the depth of discharge at the base of the battery charge current only under conditions of constant pressure, in general it is difficult to fully restore its rated capacity. Therefore, switching power supply parameters unreasonable, on the other hand increased sulfated battery plates, resulting in decreased battery capacity, shorten life.

In addition, the base stations after power failure, battery discharge voltage to the termination was not in time to supplement the electricity, will also lead to decline in battery capacity and shorten life. As some of the base station is located in rural areas or remote mountain villages and other places, the city of poor electricity supply, electricity blackouts and power failures more than the number of time, often once the electricity blackout, the battery discharge voltage to the termination, City has not been restored, on the one hand, this may have been caused by the battery discharge, battery discharge and then on the other hand, can not be timely to add electricity, in accordance with the relevant data indicate that after discharge the battery can not be timely to add power, battery capacity will decrease gradually, after several cycles, the battery life will be shortened significantly.
In the current of electricity across the country has become tighter, is expected in the next 2-3 years, the city electricity supply will not be a radical improvement in the situation, so the base station power supply is worse than ever, more frequent power failure, stop power time will be longer, the battery will be more harsh environment, how to ensure smooth communication base stations to improve the communication reliability, enhance service quality, and at the same time, the economic rational allocation of communications equipment operators is a topic facing, and how to extend the dell inspiron 6000 battery,dell inspiron 630m battery for power of time and life is the subject of one of the most important content. Battery life of course, the impact of the base station a number of factors, in practical applications, in view of this article discusses the factors that affect the battery life should be at the same time using a variety of related measures to improve the situation, thus prolonging battery life, improve communication reliability.

“Sandwich” of solar cells also work on rainy days

An ordinary solar cells done in two stages, first of all, the sun is converted to current, current of the second step is to convert energy stored in batteries. However, scientists at the University of Yokohama, Japan, has recently designed a small device, so that it can step in two stages (in one unit) to complete. The University of TsutomuMiyasaka said: We use a thin “sandwich structure” will be successful in the process of photoelectric conversion and storage into one. Only depends on the thickness of the battery electrode thickness, and thus the entire thickness of less than 1 mm.

Photoelectric conversion process is the principle of photon energy to the electronic transmission of movement to form its current. This process there are two solutions, one of the most common is the use of silicon as the main material of the solid device, and another is to use photosensitive dye molecules to capture the energy of photon. Dye molecules absorb the photon energy will enable the semiconductor after the negatively charged electrons and positively charged hole separation.

Japanese scientists used a second program. The chemical batteries from a pair of electrodes inserted in the electrolyte composition. Electrolyte contains a high concentration of charged ions, an electrode is a layer of platinum plated the inside of the glass disc, and the other electrode is a layer of titanium dioxide thin films (10 microns thick), this nano-porous membrane pore size for 15 — 30 nanometer, which filled with dye molecules. Each of the two electrodes inside a diameter of 5000 nm particles consisting of porous activated carbon layer (150-200 microns thick). Between two layers of activated carbon thin films separated by a layer of resin. In the chemical reaction process, the titanium dioxide electrode to start the electronic movement, in the toner and gathered at the junction of the electrolyte. As a result of power conservation, the other side of the electrode is continuously gathered Department toner hole. Connecting the external circuit, the electronic return through an external circuit to another pole of the carbon layer, to form the current work.

Comparison of a wide range of currently used there are three kinds of silicon cells, cells made of pure silicon, however the high cost of high efficiency, amorphous silicon cells made of inexpensive but efficient only 1/4-1/3 of the former, and this polysilicon in between the two indicators.

For silicon solar cell, the angle of incidence greater than 40 degrees most of the light reflex as a result of being unable to use. Although this new battery in direct sunlight conversion efficiency than silicon, but it can absorb a smaller angle of the light, it can even absorb diffuse light. Therefore, it can rain in the morning and evening, or even can work indoors. The efficiency of its practical equivalent or even more than the amorphous silicon cells.

Like ordinary capacitors, small battery unit can be interconnected to form a better battery performance. Miyasaka said that although the unit could only produce a battery voltage of 0.7 volts, but 18 small battery connected by a large 12-volt dell inspiron 630m battery,dell inspiron 6400 battery can produce a voltage, which considerable battery cars. Compared to ordinary solar cells, this new battery-electricity conversion efficiency is not only good, but also the conditions have been greatly expanded, and thus can be used for mobile phones, cameras, PDA and other portable electrical power supply.

Researchers are working to improve the battery capacity, it is made of flexible, lightweight plastic batteries. It is said that this technology is expected to invest in practical applications within two years.