The power supply of the base station mainly includes AC power supply and DC power supply systems.

1. AC power supply system: BTS usually introduces AC power supply from utility power, which is distributed and protected through AC distribution box. Under the normal condition of utility power, the equipment of the base station is powered by utility power; when the utility power is interrupted, the mobile oil machine can be used as a backup power source, while the battery pack provides temporary power supply before the oil machine is started. In addition, some base stations may be configured with a special transformer to step down the power supply after introducing utility power through high voltage.
2. DC power supply system: base station equipment usually requires -48V DC power supply, so the base station will be configured with a combination of switching power supply and battery pack to provide a stable DC power supply. When the utility power is normal, the switching power supply is responsible for converting AC power to DC power and charging the battery; when the utility power is interrupted, the battery pack is responsible for power supply to ensure the normal operation of communication equipment.
3. New energy power supply scheme: For areas with weak power infrastructure, the base station can adopt a hybrid power supply system, combining new energy technologies such as solar energy, wind energy and diesel generators, in order to improve the efficiency and economy of energy utilization.
4. Special power supply methods: In some special cases, base stations can also use other power supply methods, such as fuel cell power supply technology or power supply through PoE (Power over Ethernet) technology.

There are various power supply methods for base stations, and suitable power supply solutions can be selected according to specific environments and needs to ensure the stable operation of communication equipment.