Introduction
This manual provides essential instructions for the installation, operation, maintenance, and troubleshooting of your APC Back-UPS Pro 1350VA Uninterruptible Power Supply (UPS). This device is designed to provide battery backup power and surge protection for electronic equipment, ensuring continuous operation during power outages and protection against damaging power fluctuations.

Figure 1: APC Back-UPS Pro 1350VA UPS, angled view.
Package Contents
Verify that your package contains the following items:
- APC Back-UPS Pro 1350VA UPS Unit
- User Manual (this document)
- USB Communication Cable
- Coaxial Cable
Setup
1. Initial Battery Connection
The UPS is shipped with the battery disconnected for safety during transit. Before initial use, the internal battery must be connected.
- Place the UPS in its desired location. Ensure adequate ventilation around the unit.
- Refer to the battery compartment access instructions (typically located on the bottom or rear of the unit) to connect the internal battery.
- Close the battery compartment securely.
2. Connecting Equipment
The UPS features two types of outlets: Battery Backup & Surge Protection, and Surge Protection Only.

Figure 2: Rear panel with outlets and communication ports.
- Battery Backup & Surge Protection Outlets (5 outlets): Connect critical equipment such as your computer, monitor, external hard drives, and network router to these outlets. These devices will receive power from the battery during an outage.
- Surge Protection Only Outlets (5 outlets): Connect non-critical equipment like printers, scanners, or desk lamps to these outlets. These devices are protected from surges but will not receive battery power during an outage.
3. Connecting to Utility Power
Plug the UPS power cord into a grounded 120V AC wall outlet. Avoid using extension cords or surge protectors with the UPS.
4. Initial Charging
Allow the UPS to charge for at least 24 hours before connecting any equipment to ensure maximum battery runtime. The UPS will provide surge protection even if the battery is not fully charged.
5. Data Line Protection
For network dataline protection, connect your network cable from the wall outlet to the 'IN' port on the UPS, and then connect a second network cable from the 'OUT' port to your device (e.g., computer, router). Similarly, use the coaxial cable ports for cable modem or TV protection.
Operating the UPS
Front Panel Display and Controls

Figure 3: Front panel with LCD display and control buttons.
The front panel features an LCD display and control buttons for monitoring and managing the UPS.
- Power Button: Turns the UPS on or off.
- Display Button: Cycles through various display screens showing information such as battery charge, estimated runtime, input/output voltage, and load.
- Mute Button: Silences audible alarms.
Automatic Voltage Regulation (AVR)
The UPS is equipped with Automatic Voltage Regulation (AVR) to correct minor voltage fluctuations without switching to battery power. This extends battery life by reducing the frequency of battery usage.
PowerChute Software
For advanced management and automatic shutdown capabilities, connect the UPS to your computer using the provided USB cable. Download and install the PowerChute software from the APC website. This software allows you to:
- Monitor UPS status and power conditions.
- Configure automatic, graceful shutdown of your computer during extended power outages.
- View energy usage and cost.
For Mac OS, use native "Energy Saver" settings for UPS management.
Maintenance
Battery Replacement
The APC Back-UPS Pro 1350VA features a user-replaceable battery (model APCRBC123, sold separately). Batteries typically last 3-5 years depending on usage and environmental conditions. Replace the battery when the UPS indicates a battery fault or when runtime significantly decreases.
- Turn off all connected equipment and the UPS.
- Disconnect the UPS from the wall outlet.
- Follow the instructions provided with the replacement battery for safe removal of the old battery and installation of the new one.
- Recycle old batteries responsibly.
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.
Troubleshooting
If the UPS is not operating correctly, consult the following table for common issues and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| UPS does not turn on | Battery not connected or low charge | Ensure battery is connected. Plug UPS into wall outlet and allow to charge for 24 hours. |
| UPS beeps continuously | On battery power, low battery, or overload | Check utility power. Reduce connected load. Allow battery to charge. |
| "Building Wiring Fault" indicator is lit | Wiring problem in wall outlet | Consult a qualified electrician to inspect the building wiring. |
| Short runtime | Battery is old or not fully charged | Allow battery to charge for 24 hours. Consider replacing the battery if it is old. |
If problems persist after attempting these solutions, contact APC customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BX1350M |
| Capacity | 1350VA / 810W |
| Input Voltage | 120 Volts |
| Outlets | 10 (5 Battery Backup & Surge Protection, 5 Surge Protection Only) |
| Battery Type | Sealed Lead Acid (User-replaceable: APCRBC123) |
| Network Dataline Protection | 1 GB |
| Power Cord Length | 6 feet (right-angle 3-prong plug NEMA 5-15P) |
| Dimensions (H x W x D) | 19.3 x 13.6 x 9 inches |
| Weight | 22.5 pounds |
| Color | Black |
| Certifications | Energy-Star Certified |
Warranty and Support
For information regarding the manufacturer's warranty, please refer to the documentation included with your product or visit the official APC website. Extended protection plans may also be available for purchase.
For technical assistance or customer support, please visit the APC by Schneider Electric Store or contact APC customer service directly.





