18650 battery 4800mah.Iron lithium battery solution for outdoor base station power supply

　　Lithium iron battery power solution for outdoor base stations. Because lithium iron phosphate batteries have the advantages of small size, light weight, long life, high temperature resistance, strong high-current charge and discharge capabilities, safety, and environmental protection, wireless equipment manufacturers, telecom operators, and lithium iron battery suppliers are investing resources. For new base stations and relocation and transformation of base stations in various application scenarios and application environments.

　　Background on lithium iron battery solutions

　　In areas with no mains power supply or no mains power supply, in some developing countries, such as many countries in Africa, the power infrastructure is very backward. Many suburbs, rural areas, and mountainous areas do not have mains power supply, or the mains power supply is unstable, and the mains power outage lasts for as long as a day. More than 12 hours, but the communication network needs to cover these areas and communication base stations need to be built in these areas.

　　As the lithium iron battery product series becomes increasingly mature, domestic and foreign mobile operators have put forward the need to use lithium iron phosphate batteries as short-term backup power for indoor coverage or outdoor micro base stations in areas with good mains power supply. We will launch iron phosphate batteries in due course. Lithium batteries replace lead-acid batteries in wall-mounted power supplies and integrated outdoor power supplies to meet market demand.

　　Iron lithium battery solution for outdoor base station power supply

　　1. Outdoor integrated iron lithium battery power supply solution

　　Outdoor communication base stations are exposed to direct sunlight, and the life of the built-in lead-acid battery usually does not exceed 2 years. This solution uses lithium iron phosphate batteries, which have excellent high temperature resistance and a life of 5-10 years. In this solution, the lithium-iron battery has the advantages of small size, light weight, high temperature resistance, and long service life. It achieves energy saving and emission reduction in three aspects: "energy saving", "material saving" and "land saving", while effectively reducing maintenance and operation costs.

　　2. Village power supply solutions for base stations without air conditioning

　　The base stations of the village access project are all located in remote rural areas. They are small in scale and configuration, basically without air conditioning, and have frequent power outages. Lead-acid batteries have a short lifespan when working in harsh environments, require frequent replacement, and have high maintenance costs in remote rural areas. Switching to iron lithium batteries has good high-temperature performance, can be charged and discharged deeply, has a long cycle life, is small in size, light in weight, and easy to install. It can achieve the goals of energy saving and emission reduction in three aspects: "energy saving", "land saving" and "material saving". , while also improving the quality of network power supply.

　　3. Power solution for indoor macro base stations where space is tight

　　Indoor macro base stations have a large number and wide coverage, and require reliable power supply, so they generally have two sets of batteries for backup. The lead-acid battery in the station occupies a large area and is too heavy. When the increase in call traffic leads to the need for capacity expansion, the space in the station restricts the possibility of adding new equipment. Lithium iron phosphate batteries have excellent high-temperature resistance and can increase the starting temperature of the air conditioner in the station to about 35 degrees, which can reduce the energy consumption of the air conditioner and effectively reduce operating costs by saving electricity bills. In order to achieve the purpose of energy saving and emission reduction.

　　4. Indoor coverage/distributed station power supply solution

　　In addition to the indoor coverage of the original 2G network, coupled with the continuous construction of 3G and WLAN hotspots, the number of indoor coverage stations will further increase. Since indoor coverage sites generally use the nearest commercial power supply to obtain power, choosing a 48V communication battery module or lithium iron phosphate battery UPS for backup power can effectively solve this type of problem.

　　5. High-voltage DC power supply system (HVDC) power supply solution for communications

　　For the power supply scheme of the data center, industry experts have proposed a 240V/336V high-voltage DC power supply system for communications. The battery requirements of this system are characterized by high voltage (240V/336V), short time, and high current discharge. If you use a rack-mounted lithium iron phosphate battery pack, you have the following advantages:

　　(a) Light weight, saving machine room reinforcement costs;

　　(b) It is small in size and can be placed side by side with the HVDC system in the form of a head cabinet. There is no need to build a separate battery room. It can also save the floor space of the power supply system and increase the rack installation rate of communication equipment;

　　(c) Iron lithium batteries can be discharged at high rates, reducing the capacity of the battery configuration;

　　(d) The discharge platform of the iron lithium battery is stable, and the stable input voltage in battery power mode avoids equipment abnormalities caused by large-scale fluctuations in input voltage.

　　Since the integrated outdoor integrated cabinet of the computer room base station is highly integrated, the equipment built into it must be miniaturized and modularized. The valve-regulated lead-acid batteries used in traditional computer rooms can no longer meet the backup power requirements of computer room base stations due to their large size and strict requirements on ambient temperature. A new type of lithium iron phosphate battery with advanced performance is proposed as a backup battery solution for micro base stations.

　　Lithium iron phosphate batteries have the advantages of small size, light weight, outstanding high-temperature performance, excellent cycle performance, high-rate charge and discharge, and green environmental protection. They can be used in harsh base station environments such as high ambient temperatures, small computer room space and load-bearing capacity, and can be used very easily. It can well meet the backup power supply needs of the base station in the computer room.

　　In areas with frequent power outages of Category III and Category IV mains, short-term backup power can be used repeatedly. This scenario takes advantage of the deep discharge rate, long cycle life, and support for high-current fast charging characteristics of lithium iron batteries. It can be used in extremely harsh mains power environments to ensure cycle life.

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