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Battery Energy Storage Solution Power the Futhure

Work with Traditional VRLA Battery

In 1987, with the rapid development of the telecommunications industry, VRLA battery was rapidly popularized and used in the telecommunications sector.

In 1992, the VRLA battery usage in Europe and America has increased by a large margin, the telecommunications sector in Asian countries advocate all use VRLA battery;

Working as the final defense of the telecom equipments, the battery guarantees the operation of the equipments without interruption during power shedding. VRLA battery becomes a kind of essential products in telecom equipment.

With the development of lead-acid battery industry, industry competition is intense. The industry profit is decreasing year by year. At present can only maintain a 3%~5%. in order to cater to the telecom operators to reduce the cost of demand, is unable to reduce the manufacturing cost in the case of the battery, battery suppliers often suggest operation business maintaining meticulous service and the standard, to increase the battery life, reduce operators purchase frequency on the battery. In order to reduce the cost of the battery's purpose.

But only through simple training, operators need to bear a lot of battery maintenance. This allows operators to increase the use of the cost of the battery, but not reasonable to extend the life of the battery, not only did not reduce the total investment in terms of battery, but also increased the amount of work.

After the Operator receiving the battery, they have to fulfill other relative workings, making sure the battery running well: Installation, PAC, FAC, Quarterly Maintenance, Faulty Handling, Power Failure handling and so on….

The Operator spent huge money, labor and time on these works, but the final results are not as good as expected ones for the followings:
Operator collected huge data, like voltage, current, temperature information…However, the values were meaningless to figure out the root cause of the problem.

For an instance, to reduce the maintenance costs, operators could use simple 6 months and annual maintenance routines instead of monthly or quarterly service. So, the battery life would be impacted.

In the past decades, BSB has been investing a huge resource on batteries innovations, and trying our best to help our client to optimize TCO. In fact, during our practices, we do find a huge waste of money and resource after the batteries delivered.

For example, BSB usually spends a lot of resources to pack the batteries with similar resistance, OCV and discharge capacity to uniform one group, and number with the suitable labels. But during the installations, the workers always pay no attention to the battery group label and the efforts of BSB are wasted. And almost engineers know or are told that the temperature critically impacts on battery service life. For example, 10 degrees is higher than the normal, the battery service life will be decreased for 50%. In order to achieve longer service life, the battery have to have enough distance between each other, normally 10mm distance is required to assure sufficient thermal diffusion. But it is not always true while BSB survey the sites. Another important thing is the temperature sensors must be properly connected to target points and the temperature compensation functions on the rectifier shall be also activated and configured per vendor’s recommendations. But we sometime do inspect some errors happened such as no temperature sensors are provided, or the temperature sensors are not attached to batteries. The wrong settings or poor installations also shorten the battery service life.
Besides of these issues, while telecom operators have limited backups of their sites, normally there is no any historic record on the batteries, and they just want of warrantee. This kind of fight is even fierce when the battery swells happens. Batteries themselves cannot lead to thermal runaway; it is joint results from wrong charging voltage or environment temperatures. But without data for references, it is hard to say who should take the responsibilities.

From BSB’s analysis by comparing our accelerated life test results in factory and the results at the field, we do believe that our batteries can give at least 40% more service life if we strictly follow the instructions, recommendations for every step in the right way!
Today there are lots of monitor systems available in the market. By using these monitor systems you can gather the data related to the battery banks’ voltage, current and environment temperature. From NOC you can check on each banks status and history logs for analysis. But all these monitor products lacks of the decision-making systems, they cannot give you suggestions on when you need to replace the batteries, and if you can recondition the replaced batteries or they cannot give you the answer on how many remaining capacities inside the batteries. They can just simply give you the high temperature alarms, high voltage alarms etc. But they cannot give you the answer if the rectifier is working on the right float voltage or if the boost charge voltage is too low that the batteries are in under-charge conditions. It is another big waste of investment. Another issue is that the wires of the connection of each blocks is complex, and hard to do the configuration. On the other hand, the traditional battery services can only provide customers such corrective actions plan but preventive action plan.