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UPS uninterruptible power supply 2V4000AH lithium battery pack design example

UPS uninterruptible power supply 2V4000AH lithium battery pack design exampleExtension method of the battery life of the base station

Based on the factors that cause the battery life of the base station, combined with the actual situation We provide a method of extending battery life.

1. Increase the power supply

For frequently-stop sites, by increasing the fixed oil machine or mobile oil machine to ensure that the battery can be supplemented in time after power failure, or avoiding the battery depth discharge. Sites for excessive frequently-powered electricity, in addition to the above methods, special batteries need to be taken to solve problems, such as using Gel batteries. GEL is more than 1.5 to 2 times higher than the number of AGMs in the life life. It is recommended to use a 2V battery in this site to avoid using 12V batteries.

For sites without AC electricity, the diesel generator is difficult to guarantee (oil prices and cannot be fuelful in time), which requires new power supply solutions to consider using solar power supply systems.

Wuxi Huizhong Weiye Electric Co., Ltd: Tel: 0510-81813146 Website: Email:
2. Reduce the battery overmail and supplement

In the power supply program planning period, it is necessary to avoid the battery capacity according to the load current, and the discharge curve of the battery is needed, and the battery is excessive is avoided during the required discharge time. The general principle is that when the battery discharge reaches the planning requirements, the capacity of the battery is ≤80%.

After the power is turned, if there is no market access or temporarily not using the battery, all loads must be disconnected, so that the battery is in an open state. Avoid battery small current discharge, resulting in a decrease in battery capacity or failure.

In terms of power storage battery management, try to avoid the battery in the warehouse for more than 3 months. If it is more than 3 months, it is necessary to consider charging the battery.

Nanjing Xiahua Company produced Huizhou card OPZS tube-type battery main model: OPZS-200, OPZS-250, OPZS-400, OPZS-500, OPZS-600, OPZS-800, OPZS -1000, OPZS-1200, OPZS-1500, OPZS-2000, OPZS-3000
Adjust the voltage of undervoltage protection according to the actual use, try to avoid over-discharge and depth over-discharge (small current over discharge). For frequently powered off sites, in order to extend the battery life, it is required to be loaded with the electric voltage of ≥ 47V, and the secondary lower electric voltage is ≥46V.

After the power is turned on, manual control is performed to charge the battery, and the balanced charging time is ≥ 10 hours. For frequently powered off sites, you can increase the battery charging current to shorten the battery charging time and increase the amount of charge that the charging is charged. With the monitoring unit, the charging current coefficient is adjusted to 0.18 to 0.22c, and * large charging current factor cannot exceed 0.25C.

Huizhong brand battery after-sales service contact: after-sales service phone: 0510-81813146 025-56612958 official website:
According to the number of stops of the base station, the equalization of the balanced charging time, the equalization of the equalization charging time, the original setting is generally adjusted to 30 days or 15 days, and the original setting is generally adjusted to 30 days or 15 days to reduce the phenomenon of hydrochlorination. happened.

3. Reduce high temperature effects

If the battery is installed in the computer room or the box, you need to install air conditioners to ensure that the equipment room environment is at a suitable temperature. For outdoor power, you need to build a greenhouse on the battery cabinet to avoid direct sunlight. You can put the battery in a specialized cellar by buried, ensuring that the operating environment temperature of the battery will not be too high. Outdoor power supply * Good use of GEL batteries in temperature range to reduce high temperature or low temperature on the battery to extend service life.

4. Regular maintenance

After a period of running a period of time, the battery is behind (the battery-side voltage is not less than normal 20mV) or failure. If it is not discovered in time, then the backward battery will get backward until it is invalid. Failure battery can cause other good batteries to slowly fail, thereby enabling the entire battery. It is generally maintained for a maintenance of the battery every 3 months. It mainly checks that there is no leakage liquid in the battery pack. There is a shell deformed, there is no battery presence, and there is a rust-free and fixed screw, whether the ambient temperature is normal. . Only timely discovery timely deal with it can ensure the normal service life of the battery.
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