Main Application: 1.Standby power of electric power company, Telecom Company, bank, money system and Securities Company. 2.Standby power of all kinds of emergency illumination. 3.Uninterruptible Power Supply (UPS). 4.Standby power of guard against theft and alarm system. 5.Power source for Power-assist vehicle, electromotive tool and toys. 6.Standby power of solar energy system. 7.Start-up power for motorcycle and automobile.