Solar energy communications base station lead-acid battery maintenance

Battery Group is the base station to achieve DC uninterruptible power supply is an important amount of their investment and power rack is approximately equal. When mobile base stations are used in the twentieth century developed VRLA batteries (VRLA batteries called). Due to the structure of the valve seal, and do not need to add the acid, add water to maintain non-acidic, avoid acid mist and equipment can be placed with the room. Because of their small size, light weight, self-discharge is low, less maintenance, long life, easy to use, safe and reliable, well received by users. But we must see that, first the basic electrochemical principle of this battery remains the same, and therefore the intrinsic characteristics of electricity requires not only has not changed, but called for more stringent, the share of others, the battery in the promotion of top manufacturers instructions may be more or fewer cells such as “maintenance free” batteries, caused part of maintenance personnel believe that the battery requires no maintenance because it is the impact of this misunderstanding. Thereby strengthening the scientific team of this maintenance and battery maintenance to improve their availability is still very important. Dell Latitude D810 battery  Dell Latitude D820 battery

The first is to avoid overcharging. Batteries and battery life and performance of the accumulation of heat generated internally is closely linked to the main source of heat inside the battery to the electrochemical reaction of the internal power loss, you can simply look to voltage and load current product. In the new oxygen-reaction combination float current is increased, producing more heat at a constant voltage, the float current will increase as the temperature increases, causing a temperature rise further. Thermal runaway phenomenon is caused by VRLA how the structure of endemism. Thermal runaway often bring serious damage such as loss of battery water, shell ‘drum belly “, etc. In severe cases, the disposal of the battery. To avoid the extra cost of providing instructions in strict accordance with the manufacturers charge voltage values. Now, a combination of power can be adjusted and intelligent management, should be noted that the first is to set up correctly, followed by unauthorized persons generally can not be changed arbitrarily.

The second is to prevent charging enough. And overload on the contrary, the absence of load the tension load is mainly due to low or too low. Or a problem of system HSTNN-lB31 PB991A rack.

The third is to prevent excessive discharge. Depth of discharge and battery designed to charge and discharge cycles (life) are closely linked. For example, the depth of discharge of 5%, the cycle number is 10 000 times when the depth of discharge of 50%, the number of cycle is only 800 times. In severe cases, can cause excessive electrical discharges in the battery can no longer active in the best condition, or even abandoned. Different flow of time and termination of its discharge voltage is different, the release of the effective capacity is also different, and the temperature of the environment. This is not a longer list and plot the curve, the different specifications of the manufacturer of the battery is up to. Maintenance personnel should be concerned, and in strict conformity with the corresponding data set in the monitoring unit may not be changed by accident. Now power rack manufacturers have designed the battery under the civil power, which is when the battery runs down to adjust the termination voltage, monitoring controls, automatically cut off the discharge circuit the battery. More manufacturers are taking into account the monitoring unit for any reason (subject to the power of their work may BE) can not detect the battery voltage or may be issued a directive to stop when the other equipment have been forced to leave the circuit. Therefore, inspection of the maintenance staff should also be concerned about the reliability of circuit equipment, ensuring control and maintenance. VGP-BPS5 VGP-BPS9A

4 is to control the temperature. When the battery temperature, the electrolyte has intensified, the battery internal resistance decreases, the float current increases, leading to increased corrosion of conductive parts, the reduced life on the contrary, the weakening of activity in the electrolyte, the battery internal resistance to increase the burden of discharging the battery capacity to weaken. Therefore, the right to monitor the battery temperature and control temperature and maintaining it is very necessary. Must be accompanied by the charge voltage temperature compensation to prevent overload at high temperatures and low temperatures of less filling. The vast majority of the use of VRLA batteries in place, take the temperature controlled at 25 degrees, accelerated aging tests showed that the ambient temperature of 10 degrees without adjusting the charging voltage, its autonomy is reduced by half. PA3399U-2BRS PA3421U-1BRS

5 is the timely replacement of the defective battery. Since each process a single difference in the long term float could get little “late”, there will be regular monitoring of the unit is a rechargeable battery for management functions to activate the monomer in rear, so as not to further delay. But often in late May and eventually become defective battery. You can use several methods to determine if she was terminally ill, as the capacity of their separate trials, or on-line testing in the resistance and so on. The key is to quickly replace the defective battery, so the availability of battery life and the whole group is very important.

6 is the proposal on a regular basis to test the capacity of the battery and the discharge test. Capacity test is to undergo a medical examination of the A1008 battery, of course, an increased workload, but the needs and possibilities to consider, it is recommended to conduct sampling test conditions are needed.

Talking about battery hazards

These last two years, the environmental impact of waste batteries becomes hot topic in one of the national media. Some have reported that the battery of environmental pollution is very serious, a battery can contaminate hundreds of thousands of cubic meters of water. Some even say that with the disposal of waste batteries can cause Minamata disease, such as Japan, as the danger of these reports have generated a great response, there is a lot of love for people and organizations to take measures to protect the environment or to participate in Laptop battery recycling business waste.

However, the State Administration of Environmental Protection say that does not focus on recycling of used batteries, used batteries damage the environment before the reports of the lack of scientific basis, to some extent led to deceive the masses. So, how to treat the batteries before science? This article aims to inform to the issue, to help you understand the more scientific treatment of waste batteries, better protection of our environment.

Rubbish inside the battery ultimately what contaminants

Environmental Science and Engineering, Tsinghua University, tutor of doctoral student Yong-Feng Nie, Professor, leading research group devoted to the risks and the elimination of waste batteries, research has been done. He said that in recent years, the batteries on the reports of harm to the environment, there are many, but unfortunately, these reports did not explain to readers or viewers to support his findings of the content research, there is no incentive for readers to submit their analysis process, there are no lists the actual pollution caused by the case of the dry Dell FK890 battery, only pollution “serious” conclusion.

Waste batteries containing hazardous substances, these substances through such a mechanism of release into the environment, would be the extent of damage to the environment, availability of internal and external batteries causing serious pollution cases, developed countries is how to solve this problem? with doubt, the research group conducted a survey on the depth and concluded with a number of far cry from news reports, these reports there is no practical and radical of the Office.

Professor Nie said the batteries can be divided into a (normal dry cells) of secondary batteries (rechargeable, mainly used in mobile phones, computers), lead acid batteries (mostly used in cars) three categories. Use the more the masses are more concerned by the reports of most ordinary batteries. Described below refer to a conventional hp 367759-001 battery and dry.

The batteries are made of iron, zinc, manganese, etc., plus traces of mercury, mercury are toxic. It was reported that in general, batteries containing mercury, cadmium, lead, arsenic and other substances, it is not true. In fact, the masses of ordinary dry batteries for daily use in the production process without added cadmium, lead, arsenic and other substances.

The piles of waste, mercury does not pose a threat to the environment

Low temperature volatilization of mercury is a highly toxic heavy metal. Many parts of the world also contain trace amounts of mercury in the mercury mining, refining, processing of mercury containing products, such as the measures are not confined sufficiently complete, the release of mercury into the atmosphere (steam) on the health of the operator a great influence.

May batteries contain mercury, but because it is additive, its concentration rarely. Even high-mercury batteries, mercury batteries are generally less than one thousandth of the mass. The Chinese sony VGP-BPS5 battery with the annual amount of mercury, usually in line with mercury, polyvinyl chloride, or alchemical mercury, lead and zinc mining and dressing or high emissions of mercury from companies wastewater in the year a considerable quantity of mercury. Since the battery consumption of the vast region the mercury batteries in the system of waste disposal, after the environmental impact of chemical emissions than its predecessor, the impact of mercury-containing wastewater is much smaller addition, the battery used in stainless steel or carbon steel because of the external foreskin, prevent leaks of mercury. Therefore discarded used batteries garbage scattered in life, the damage is minimal objectively impossible, as the Minamata disease caused the damage. Japan, Minamata disease is a chemical company for a few decades a large number of flows of rivers of mercury-containing wastewater, the gradual accumulation of mercury in the river downstream of the system caused.

Containing mercury, batteries are replaced by mercury-free BTP-43D1 battery

Of course, mercury, batteries, waste, after all, has a negative impact on the environment (even slightly). Thus, at the end of 1997, Economic and Trade Commission, China Light Industry Association and nine other ministries jointly issued a “restriction on the provisions of mercury batteries,” learn from the experience of developed countries require manufacturers of internal battery to gradually reduce the mercury content in batteries in 2002, domestic sales of batteries to achieve low-mercury, the mercury reached in 2006.

From practical point of view of progress, the domestic industry manufacturing the battery according to the basic “rule” requires the progressive reduction of mercury content in batteries. According to data from the China Battery Industry Association, the battery production in China to 180 dollars, exports about 10 billion euros, the annual domestic consumption of about 8 billion euros, standards Base hit a low of mercury (mercury content less than 0.025% by weight of batteries). Of these, approximately 2 billion of mercury-free standards (weight of mercury batteries less than 0.001%).