General 
UPS - J power supply belongs to uninterrupted power supply that has high efficiency, small volume, nice appearance, advanced andreliable performance specially designed for microcomputer system and precise electronic instrument. When the commercial power is normal, it outputs voltage stabilized AC power supply; When the power fails or the voltage is too low or too high, the inverter powered by battery outputs AC to load in 10 ms. During battery supplying power, if the commercial power resumes, the inverter in the machine will stop inverting immediately and the commercial power restore into use; The battery is charging at the same time. 
Features UPS - J series is designed based on UPS-H series with the improvement in the inverting transition time. So, it is more economical and more suitable for computers in the family and office. 
Battery presevation 
Under the normal condition, the battery should be charged once for every three months, and the charging time should be not less than 6hrs. In the high temperature area, the battery should be charged once every two months, and charging time also should be not less than 6hrs.