Maintenance1. Storage and operating environment can affect the service life and reliabilityof this product. The product is not suitable for performance in the followingenvironment:2. For long-term storage, UPS (without batteries) should be kept in a dryenvironment with temperature ranging from -25-55 ℃ . Before start-up, ambienttemperature should be brought back to 0 or above for a certain period of time(above 2 hours).3. The UPS must be well ventilated to avoid internal temperature rise which willshorten the lifetime of the components and thus shorten the lifetime of the UPS.4. For long-term storage, the battery should be charged once every threemonths in normal temperature environment and once every two months in hightemperature environment for no less than 10 hours; no-load discharge is notallowed, and the battery continuous discharge time should not exceed 14 hours.A. Locations where temperature or humidity exceeds the maximum or goesbelow the minimum levels as shown in the technical specifications (temperaturerange: 0-40℃ ; relative humidity range: 0-95% non condensing);B. Locations where vibration and impact are constant;C. Locations where metallic dust, corrosive substances as well as salts andinflammable gases are present.