1. Introduction
This user manual provides essential information for the safe and efficient operation of your APC Smart-UPS SMT1500I. Please read this manual thoroughly before installation and use, and retain it for future reference. The APC Smart-UPS SMT1500I is designed to provide reliable power protection for electronic equipment, safeguarding against power outages, sags, surges, and other power disturbances.
1.1 Safety Information
- Electrical Safety: Always connect the UPS to a grounded outlet. Do not remove the grounding prong.
- Battery Safety: Batteries can present a risk of electrical shock and high short-circuit current. Observe proper precautions. Refer to the battery replacement section for service.
- Environment: Install the UPS indoors in a controlled environment, free from excessive dust, corrosive fumes, and conductive contaminants. Avoid direct sunlight and heat sources.
- Weight: The UPS is heavy. Use proper lifting techniques or assistance during installation to prevent injury.
2. Package Contents
Verify that all components are present upon unpacking. If any items are missing or damaged, contact your dealer or APC customer support.
- APC Smart-UPS SMT1500I Unit
- User Manual (this document)
- USB Communication Cable
- Serial Communication Cable
- Power Chute Software CD (or download instructions)
- Input Power Cord
- Output Power Cords (quantity may vary by region)
3. Setup and Installation
3.1 Unpacking and Placement
Carefully remove the UPS from its packaging. Place the UPS on a flat, stable surface. Ensure adequate airflow around the unit; do not block ventilation openings. Maintain a minimum of 20 cm (8 inches) clearance from the rear and sides of the unit.

Figure 1: Front view of the APC Smart-UPS SMT1500I. This image displays the front panel of the APC Smart-UPS SMT1500I, featuring the LCD screen, control buttons, and the APC logo. The unit is a compact, tower-style UPS designed for reliable power backup.
3.2 Connecting to Utility Power
- Connect the provided input power cord to the UPS input receptacle.
- Plug the other end of the input power cord into a grounded 230V AC utility outlet.
- Allow the UPS to charge for at least 24 hours before connecting critical equipment to ensure full battery capacity.
3.3 Connecting Equipment
Connect your electronic equipment to the output receptacles on the rear of the UPS. Ensure that the total load does not exceed the UPS's rated capacity (980W for SMT1500I).
- Battery Backup Outlets: Connect critical equipment (e.g., computers, monitors, network devices) that require continuous power during outages to these outlets.
- Surge Only Outlets (if applicable): Connect non-critical equipment (e.g., printers, scanners) that only require surge protection to these outlets.
3.4 Initial Startup
After connecting the UPS to utility power and allowing initial charging, press the power button on the front panel to turn on the UPS. The LCD display will illuminate, and the UPS will perform a self-test.
4. Operating the UPS
4.1 LCD Display and Control Buttons
The front panel LCD provides real-time status information and allows configuration of UPS settings. Use the navigation buttons (Up, Down, Enter, Escape) to browse menus and adjust settings.
- Power Button: Turns the UPS on or off.
- Menu Navigation: Allows access to various UPS settings and status screens.
- Status Indicators: Icons on the LCD display indicate operational status, battery charge, load level, and active alarms.
4.2 Basic Operation
- Power On/Off: Press and hold the power button for a few seconds to turn the UPS on or off.
- Self-Test: Initiate a self-test through the LCD menu to verify battery and UPS functionality.
- Alarm Management: The UPS will emit audible alarms during power events or system faults. These can often be silenced temporarily via the LCD menu.
5. Maintenance
5.1 Battery Replacement
The UPS contains a user-replaceable, hot-swappable battery module. Refer to the specific battery replacement instructions provided with your replacement battery kit or consult the APC website for detailed procedures. Always use genuine APC replacement batteries to ensure optimal performance and safety.
- Warning: Risk of electrical shock. Disconnect the UPS from utility power before servicing the battery.
- Disposal: Dispose of used batteries properly according to local regulations.
5.2 Cleaning
Periodically clean the exterior of the UPS with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure ventilation openings are free from dust and debris.
6. Troubleshooting
This section addresses common issues you might encounter with your APC Smart-UPS SMT1500I. For more detailed troubleshooting, refer to the APC support website.
6.1 Common Issues and Solutions
- UPS does not turn on:
- Ensure the input power cord is securely connected to both the UPS and a live utility outlet.
- Verify the utility outlet is providing power.
- Check if the battery is properly connected inside the UPS.
- UPS is beeping continuously:
- This usually indicates the UPS is operating on battery power due to a utility power outage.
- If utility power is present, check for an overload condition (too much equipment connected).
- A continuous alarm might also indicate a battery fault; perform a self-test.
- Equipment connected to UPS is not receiving power:
- Ensure the UPS is turned on.
- Check if the equipment's power cords are securely plugged into the UPS outlets.
- Verify that the UPS is not in an overload state.
7. Specifications
The following table outlines the technical specifications for the APC Smart-UPS SMT1500I.
| Feature | Specification |
|---|---|
| Model Number | SMT1500I |
| Capacity (VA) | 1500VA |
| Capacity (Watts) | 980W |
| Nominal Output Voltage | 230V |
| Input Voltage | 230V |
| Form Factor | Tower (Rack convertible with optional kit) |
| Product Dimensions (H x W x D) | 1 x 1 x 1 inches |
| Item Weight | 2 pounds |
| UPC | 779184352259 |
| ASIN | B01M27PUON |
| Date First Available | October 31, 2016 |
8. Warranty and Support
APC provides a limited warranty for this product. For detailed warranty information, please refer to the warranty card included with your product or visit the official APC website. For technical support, product registration, or to locate service centers, please visit www.apc.com/support or contact your local APC representative.
When contacting support, please have your model number (SMT1500I) and serial number readily available.





