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.

Power Battery room temperature requirements

Power plants, DC position control system power, signal, protection and breaker points, closing and other energy sources, is also the provision of automatic devices, lighting d urgency, such as power. DC system running safe, reliable, all electrical equipment is an important guarantee for the normal operation of the DC system failure or unreliable may lead to downtime, equipment damage and disconnection, even supply system such as accidents. The DC system is usually powered by a rechargeable screen, load DC-fed screen, the composition of the Laptop battery. Battery backup power as a DC system, where the city power failure or accidental power outage, plays an extremely important role. According to the procedures of the State Grid Corporation DL/T724-2000 and 18 major power struggle against the gate-crash measures, battery testing and regular maintenance can prolong and improve the performance and battery life, so to ensure system security. Affect the battery capacity and the performance degradation of the main reasons:

1. Using the environmental impact of temperature on the battery. The existing plant, the vast majority of Power Supply Bureau for the use of VRLA batteries, the operating temperature is 25 ℃, due to its sealed structure, its internal heat dissipation is difficult. Is increased by 10 ℃, the battery life is reduced by 1 / 2. We must be careful when the battery installed, each battery to keep at least 1 cm between the spacing, so that is conducive to the breakdown.

2. The impact on the battery lead-acid batteries VRLA worked in a floating state, the float voltage choosing to capture a significant impact on Dell Inspiron 1100 battery life. Float voltage is selected and the battery temperature rises above or, if there is no time to float adjusted downward tension, it will cause the accelerating loss of battery overload of water, d ‘ where a decrease in battery capacity. Are charging the battery when the charging voltage is too high or the temperature is too high causes the battery internal temperature of the fluid, due to valve structure sealed battery, the heat is not easy to exclude and therefore Also on “thermal runaway” phenomenon to occur, reduce the capacity of the battery.

3. During the impact of discharge on the batteries to discharge the battery also has strict requirements, the battery can not discharge the load below the provisions of the tension of the termination, if less than this value will produce an excessive discharge of the battery, causing the decrease of active ingredients of the hp PB991A batteryaffects their performance and service life, but also difficult to repair.

4. Output devices for the quality of charging batteries affect the current use of large-scale VRLA batteries is different from that of lead acid batteries or nickel-cadmium batteries, its internal resistance is smaller, the output of load performance of the device requires. Conducted in parallel with the battery charging equipment, the ripple coefficient of a larger battery will cause a long period of the load pulse, the discharge state, which accelerates the aging process affects the battery the battery life at the same time, through the use of VRLA batteries depleted solution or less liquid structure, one-off charge or excessive discharge, which may have serious damage to the batteries, the emergence of a new battery load equipment in the regulation of accuracy, automation, reliability and so make new applications. Therefore, the charging device directly affects the battery performance good or bad and the good functioning of the whole system CD. The special structure of the battery, and more leaks, drum kits can be judged from the appearance of the performance is good or bad, if the only criterion for measuring performance across the discharge test, test its actual capacity. On a regular basis to detect and maintain the batteries can accurately understand its performance and prolong its life, thus making the latter to protect DC system.

The maintenance of the battery: 1. On a regular basis to clean the surface of the battery temperature, battery test room, preferably maintained at about 25 ℃. Check the battery terminals and connections online whether fever in bulk, and other phenomena, that the injury or the drum shell package, leaks and so on. 2. On a regular basis to measure and record the total voltage system battery float voltage and current single, they have severely overcharging or less filling phenomenon. 3. Detection of DC output responsible for the quality of the screen, including regulation, constant flow, ripple, and other parameters so as to avoid floating state of the drive long-term damage to the battery. 4. On a regular basis to perform maintenance of the battery charge and discharge, which can lead to a result of long-lasting battery variable active substance activity decreased activation play a role. 5. On a regular basis to check if the battery discharge test with constant current, testing the capacity of the sony VGP-BPS2 battery, the battery capacity and thereby achieve “a pretty good idea” to ensure that electrical accidents in the city without power, control, signaling, protection and breaker points, fencing, etc. to provide sufficient electrical energy to increase the power of unexpected power loss to a minimum.