OPTI-UPS ES1500C - Manual (Page 12)

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1.4 User Replaceable Battery Design
The battery is the most critical part in a UPS. The average lifetime of a battery
is between 3 and 5 years. The special user-replaceable battery design of this
UPS provides significant savings and gives the UPS an almost unlimited life.
You can replace the battery very easily, and without turning off your UPS or
the equipment it is protecting.
1.5 Advanced Interface to Communicate with Computer
Many UPS’s provide only a basic power failure warning. These models,
together with OPTI-SAFE Xtreme also provide you with important operating
information. From your computer screen, you can know input/output voltage
and current, frequency, battery voltage, etc., and analyze power problems. If
software is not part of your UPS package, you can purchase it from your local
dealer.
1.6 Schedule Shutdown & Startup
Using software you can locally or remotely control the shutdown and startup of
equipment connected to the UPS. A customized schedule can be developed to
meet your specific requirements.
1.7 Data-Line Surge Protection
The built-in data-line surge suppression on the rear panel completes your
system protection. It provides an easy way to protect a network (RJ45) or
modem (single line phone) connection from hazardous spikes.