The invention discloses a
pressure reduction and energy saving method for communication power supplies and aims at providing a method to reduce float charge supply
voltage of the communication power supplies. The method is used to reduce power consumptions of communication equipment. The method includes the following steps that: a storage
battery pack is divided into a main storage
battery pack and an auxiliary storage
battery pack, wherein the storage battery pack is formed by 24 storage batteries which are connected in series; a main charger and an auxiliary charger are correspondingly parallelly connected with the main storage battery pack and the auxiliary storage battery pack; a load and a directional
diode are parallelly connected with two ends of the main storage battery pack to form a float charge power supply circuit, wherein the load is connected in series with the directional
diode; a normally
open contact of a
relay is connected between a
cathode and the load of the storage battery pack so as to form a
discharge circuit; a controller is used to monitor conditions of power restoration and power outage, wherein the controller is connected in the float charge power supply circuit and the
discharge circuit; the controller controls a motion of the
relay according to the conditions of the power restoration and the power outage. By using the invention, a requirement of load working
voltage can be satisfied, charging quality of the storage batteries can be guaranteed, the power consumptions of the load during float charge power supply can be reduced. The method of the invention is an ideal method which can be used to reduce the power consumptions of the communication equipment.