APC Back-UPS 650 Manual: Comprehensive Guide
This comprehensive guide details the APC Back-UPS 650, covering setup, features, troubleshooting, and safety—essential for reliable power protection of your valuable devices.
The APC Back-UPS 650 provides reliable, battery backup and surge protection for desktop computers, workstations, networking devices, and other sensitive electronics. Designed for home and small office environments, this UPS (Uninterruptible Power Supply) safeguards against data loss, hardware damage, and downtime during power outages, voltage fluctuations, and surges.
It offers Automatic Voltage Regulation (AVR) to maintain stable voltage levels, extending battery life and protecting connected equipment. The Back-UPS 650 features multiple outlets, differentiating between battery backup and surge-only protection, allowing users to prioritize critical devices. This manual provides detailed instructions for safe installation, operation, and maintenance, ensuring optimal performance and longevity of your APC Back-UPS 650.
Unboxing and Package Contents
Upon receiving your APC Back-UPS 650, carefully inspect the package for any signs of damage during shipping. Gently open the box and verify that all components are present. You should find the APC Back-UPS 650 unit itself, a power cord for connecting to a wall outlet, and two cord straps for cable management.
Additionally, the package includes a telephone cable for protecting telephone, DSL, or coax lines, and a warranty card detailing the terms and conditions of your coverage. An APC Solutions magazine may also be included. Retain all packaging materials and the user manual for future reference or potential warranty claims. Contact APC support immediately if any items are missing or damaged.
Included Accessories
The APC Back-UPS 650 package provides essential accessories to ensure immediate usability and optimal protection for your connected equipment. These include two convenient cord straps designed to neatly organize and manage power cables, preventing tangles and maintaining a tidy setup. A telephone cable is also provided, safeguarding telephone, DSL, and coax lines from surges.
Furthermore, you’ll receive the comprehensive user manual, detailing setup, operation, and troubleshooting. The included warranty card outlines the coverage details for your peace of mind. An APC Solutions magazine may also be present, offering insights into other APC products and solutions. These accessories enhance the overall value and functionality of your Back-UPS 650.

Safety Precautions & Warnings
Prioritize safety when installing and operating your APC Back-UPS 650. This UPS is intended for indoor use only, avoiding exposure to water or excessive humidity. Do not open or modify the unit, as this could present a risk of electric shock or fire. Ensure adequate ventilation around the UPS to prevent overheating.
Avoid connecting generators to the Back-UPS 650 unless they feature automatic voltage regulation. Disconnect the UPS from the wall outlet before performing any maintenance or replacing the battery. Improper handling of the battery can be hazardous; follow the battery replacement instructions carefully. Always adhere to local electrical codes and regulations.
Understanding the Back-UPS 650 Features
The APC Back-UPS 650 provides reliable power protection for desktop computers, peripherals, and small office equipment. Key features include Automatic Voltage Regulation (AVR), which stabilizes voltage fluctuations without using battery power, extending battery life. Surge protection safeguards connected devices from damaging spikes and surges.

It offers battery backup, allowing continued operation during power outages. Distinct outlet types differentiate battery-backed and surge-only protected devices. User-friendly indicator lights display UPS status, and optional PowerChute software enables graceful shutdown during extended outages. This unit is designed for ease of use and dependable performance.
Automatic Voltage Regulation (AVR)
The Back-UPS 650’s Automatic Voltage Regulation (AVR) actively corrects minor voltage fluctuations – both over and under voltages – without switching to battery power. This crucial feature ensures connected equipment receives stable power, preventing potential damage and data loss caused by inconsistent electricity.
AVR significantly extends the lifespan of the UPS battery by reducing unnecessary discharge cycles. By normalizing voltage, AVR protects sensitive electronics from the stresses of fluctuating power, offering a more reliable and consistent power supply. It’s a key component of the Back-UPS 650’s protective capabilities.
Surge Protection Capabilities
The APC Back-UPS 650 provides robust surge protection, safeguarding connected devices from damaging voltage spikes and surges caused by lightning, power outages, or internal electrical disturbances. This protection extends to both the battery backup and surge-only outlets, offering comprehensive defense for all connected equipment;
The surge protection circuitry effectively clamps excess voltage, diverting harmful energy away from sensitive electronics. This prevents potential hardware failures, data corruption, and costly repairs. It’s a vital layer of defense, especially in areas prone to electrical instability, ensuring the longevity of your valuable devices.
Connecting Your Devices
Properly connecting your devices to the APC Back-UPS 650 is crucial for optimal protection and performance. Begin by identifying the appropriate outlets – battery backup for critical equipment like computers, and surge-only for less sensitive peripherals like printers or scanners.
Ensure all devices are switched off before connecting them to the UPS. Use the provided power cords and avoid overloading the outlets, respecting the UPS’s wattage capacity. Connecting telephone, DSL, or coax lines through the surge protection ports offers additional safeguarding against external surges. Refer to the manual for specific connection instructions and safety guidelines.
Battery Backup Outlets vs. Surge-Only Outlets
The APC Back-UPS 650 features two distinct types of outlets: battery backup and surge-only. Battery backup outlets provide power from the battery during outages, safeguarding critical equipment like computers from data loss and hardware damage. Surge-only outlets offer protection against power spikes and surges, ideal for peripherals like printers and lamps.
Prioritize connecting essential devices to the battery backup outlets. Understanding this distinction ensures your most important equipment remains powered during disruptions, while still protecting all connected devices from damaging surges. Always consult the manual for outlet identification and load capacity guidelines.
Connecting Computers and Peripherals
To connect your computer, plug its power cord into one of the battery backup outlets on the Back-UPS 650. Then, connect essential peripherals like your monitor, external hard drive, and scanner to additional battery backup outlets. Non-essential devices, such as printers, speakers, and lamps, should be connected to the surge-only outlets.
Ensure the total power draw of all connected devices does not exceed the UPS’s capacity. Refer to the device’s power supply label for wattage information; Proper connection maximizes runtime during power outages and safeguards your valuable equipment from both outages and surges.
Connecting Telephone/DSL/Coax Lines
The APC Back-UPS 650 provides surge protection for telephone, DSL, and coax lines, safeguarding connected devices from power surges traveling through these lines. Use the included telephone cable to connect your telephone or DSL line to the surge protection ports on the rear panel of the UPS.
For coax connections, a standard coax cable is used. This protects modems, set-top boxes, and other sensitive equipment. Proper connection ensures continuous operation of these services during power outages, maintaining communication and entertainment access. Always verify secure connections for optimal surge protection.

Initial Setup and Power-On
Before initial use, inspect the APC Back-UPS 650 for any visible damage during shipping. Connect the UPS to a grounded wall outlet – do not plug in connected equipment yet. Press the power button to initiate the self-test. The UPS will run a brief diagnostic to confirm battery functionality and internal systems are operational.
Allow the battery to charge for at least 8 hours for optimal runtime. During charging, observe the indicator lights to monitor the charging progress. Once fully charged, you can safely connect your computers, peripherals, and other sensitive electronics to the appropriate outlets.
Back-UPS 650 Indicator Lights & Alarms
The Back-UPS 650 utilizes LED indicators and audible alarms to communicate its status. A solid green light typically signifies normal operation and a fully charged battery. Flashing amber indicates a battery charge in progress or a potential issue. Red signals a low battery or a fault condition requiring attention.

Audible alarms will sound during power outages, low battery warnings, or if the UPS is overloaded. Understanding these signals is crucial for proactive maintenance and ensuring uninterrupted power to your connected devices. Refer to the troubleshooting section for specific alarm interpretations.
Interpreting LED Status

The APC Back-UPS 650’s LED provides vital operational insights. A steady green light confirms normal power and a fully charged battery, ensuring optimal protection. A flashing amber light indicates the unit is charging or experiencing a minor issue – check connections. A solid amber light signals a replacement battery is needed soon.
A flashing red light denotes a low battery, requiring immediate attention or a power outage. A steady red light indicates a fault; consult the troubleshooting guide. Ignoring these signals can compromise your device protection, so regular monitoring is essential for reliable performance.
Software Installation & Configuration (PowerChute)
PowerChute software enhances your Back-UPS 650’s capabilities. Download the compatible version from APC’s website and follow the on-screen installation prompts. Configuration involves selecting your operating system and defining shutdown preferences during power outages. Customize settings to automatically save open files and safely power down your computer.
PowerChute also provides detailed battery status, event logging, and notification options. Regularly check the software for updates to ensure optimal performance and compatibility. Proper configuration maximizes data protection and minimizes downtime during unexpected power events, offering peace of mind.
Battery Management & Maintenance
Proper battery care extends the life of your Back-UPS 650. Avoid extreme temperatures, as heat degrades battery performance. Regularly check the battery status via the PowerChute software or the unit’s indicator lights. Batteries self-discharge over time; periodic full charges are recommended, even when the UPS is plugged in.
Dust accumulation can also affect performance, so keep the unit clean and well-ventilated. Avoid prolonged discharge, as this shortens battery lifespan. When replacing the battery, use only APC-approved replacement batteries to ensure compatibility and safety.
Battery Replacement Procedures
Replacing the Back-UPS 650 battery requires caution. First, disconnect all devices and the UPS from the power outlet. Open the battery compartment, typically located on the front or side. Carefully remove the old battery, noting its orientation. Install the new, APC-approved replacement battery, ensuring correct polarity.
Securely close the battery compartment. Connect the UPS to the power outlet and allow it to charge fully – typically 24 hours – before reconnecting devices. Properly dispose of the old battery according to local regulations; do not incinerate or landfill.
Troubleshooting Common Issues

If the UPS isn’t powering on, check the power cord connection and ensure the wall outlet is functioning. A “Battery Not Charging” indicator suggests a faulty battery or charging circuit – try a different outlet. If the unit beeps continuously, it may indicate a low battery or overload condition.
Disconnect some devices to resolve overload. For software issues, reinstall PowerChute. If problems persist, consult the APC website for FAQs or contact technical support. Always prioritize safety and avoid opening the UPS beyond the battery compartment.
UPS Not Powering On
If your APC Back-UPS 650 fails to power on, first verify the power cord is securely connected to both the UPS and a working wall outlet. Test the outlet with another device to confirm it’s providing power. Check the UPS’s power switch; ensure it’s in the “On” position;
If still unresponsive, the internal fuse might have blown – contact APC support for assistance. A completely discharged battery can also prevent startup; allow it to charge for several hours before attempting to power on again. Avoid disassembling the unit yourself.
Battery Not Charging
If the APC Back-UPS 650 battery isn’t charging, confirm the unit is plugged into a functioning wall outlet and powered on. Check the indicator lights; a flashing battery icon often signals a charging issue. Allow ample charging time – a fully depleted battery requires several hours to reach full capacity.
A failing battery is a common cause; consider a battery replacement if the issue persists. Ensure the UPS isn’t overloaded with too many devices, as this can hinder charging. Contact APC support if the problem continues, as internal component failure may be present.
Technical Specifications
The APC Back-UPS 650 boasts key specifications for reliable power protection. Input voltage ranges from 120V, with an output voltage of 120V. It delivers 650VA / 390 Watts of power, sufficient for essential devices. Battery runtime varies based on load, typically ranging from 5 to 10 minutes at full load.
The unit features six NEMA 5-15R outlets – three battery backup and three surge-only. It includes telephone/DSL/coax line protection. Dimensions are approximately 9.8 x 6.4 x 4.1 inches, and it weighs around 12.1 pounds. Refer to the official APC documentation for precise, up-to-date specifications.
Warranty Information
APC by Schneider Electric provides a warranty for the Back-UPS 650, offering peace of mind against manufacturing defects. The standard warranty period is typically one year from the date of purchase, covering parts and labor. Extended warranties may be available for purchase, providing longer-term protection.
To make a warranty claim, retain your proof of purchase and contact APC customer support. The warranty does not cover damage caused by misuse, accidents, or unauthorized modifications. Review the complete warranty terms and conditions detailed in the documentation included with your Back-UPS 650 for full coverage details.
Frequently Asked Questions (FAQ)

Q: What does a rostrum mean? A: A rostrum is a raised platform for speakers, originating from ancient Roman warships’ pointed beams. Q: How do I know if the UPS is working? A: Check the indicator lights; a solid green light usually indicates normal operation. Q: Can I replace the battery myself? A: Yes, but follow the battery replacement procedures carefully outlined in this manual.

Q: What’s the difference between outlets? A: Some provide battery backup, others only surge protection. Q: Where can I find more information? A: Visit the APC website or consult the full user manual for detailed guidance.
Rostrum Definition (Related Terminology)
A rostrum, historically, referred to the beak of a Roman warship, often adorned with captured vessels. Today, it denotes a raised platform for speakers – a dais, podium, or lectern. While a lectern holds notes, a podium elevates the speaker, and a dais accommodates multiple individuals.
The term extends metaphorically to positions of authority or honor, like a winner’s platform. Understanding these distinctions clarifies the context when encountering “rostrum” in various settings. It’s a platform for presentation, much like the APC Back-UPS 650 provides a platform for uninterrupted power.
Manual Download Resources

Accessing the APC Back-UPS 650 manual is crucial for optimal use and troubleshooting. Several online resources provide downloadable versions, including APC’s official website and various document repositories. Users can find files in PDF, JP2 ZIP, and even TORRENT formats.
Chris85 uploaded a version on January 6, 2022, offering an additional source. These resources often include multiple revisions (e.g., Revision 7 from 12/99) and supplementary materials like warranty cards and APC Solutions magazine content. Ensure you download the correct version for your specific model to guarantee accurate information.