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A full range of enterprise technology services solar battery sales hotline: 010-57118558 (many lines) Mobile: 13911455366 Customer QQ120716683. As the station DC battery backup power system requirements usually maintained at a certain level of charge to the DC-screen high-frequency switching power supply or silicon rectifying an AC power failure, the failure cause can not be output DC power supply, timely investment, which does not affect DC station equipment and the normal operation of the DC circuit. Therefore, the performance of the battery itself should be able to meet its capacity, the voltage within a certain time (including DC power supply means during maintenance), maintained at a high level. The only way to ensure the safety of the station DC system reliable operation. Battery Principle: When charging, electrical energy into chemical energy, chemical energy and discharge into electricity. When discharging the battery, the metal lead is a negative electrode, an oxidation reaction, is oxidized to lead sulfate; lead dioxide positive electrode, reduction reaction occurs, is reduced to lead sulfate. When the battery is charged with direct current, the bipolar lead and lead dioxide are generated. After removing the power supply, it recovered to the state before discharge to form internal dynamic equilibrium of chemical batteries. Lead-acid battery is capable of repeated charging and discharging of the battery, also known as the secondary battery. UPS power supply battery should pay attention to the choice of standard or shorter backup time must have a short time high current output characteristics. The sealed lead-acid battery is the most commonly used. Sealed lead-acid battery electrolyte substantially constant, no loss. This is because the sealed lead-acid battery uses advanced cathode absorption-type seal technology. Using this technique, you can add distilled water to make up intervals extended to more than five years, in order to ensure a sealed battery safe and reliable work, he asked for the maximum charging current value of the charging current of the battery charge may not exceed the battery allowed. UPS chargers are constant current charging a hierarchical manner, ie in the initial charge with a constant current charge, the charging current is limited to a predetermined value or battery rated capacity of one-tenth of the current value. Charging a certain time, constant voltage charging was changed, i.e., floating charge. Since the maintenance-free lead-acid batteries use lead-calcium alloy grid frame, because the water at normal charge voltage, charge generated by decomposition less, low moisture evaporation, coupled with the housing sealed structure, release of acid gas is also very less, so it is compared with the conventional batteries, with no need to add any liquid, for wiring trailer coupling, less wires, corrosion resistance is too strong charging capability, the plate has a strong anti-overcharge ability, but also has a small internal resistance than Conventional long battery life and other characteristics, under normal circumstances the charging system, without the supplemental charge removed. Maintenance-free lead-acid battery applications: marine equipment, medical equipment, alarm systems, engine start, power tools, emergency lighting systems, backup power supply, large UPS and computer standby power, peak load compensation for energy storage devices, power systems, telecommunications equipment , control systems, nuclear power plants, power stations, fire and security and defense systems, solar energy, wind power plants, electronic equipment.