Dell J716N, K789N Storing the UPS and Batteries, When to Replace Batteries, Testing Batteries

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Storing the UPS and Batteries

If you store the UPS for a long period, recharge the battery every 6 months by plugging the UPS into a power outlet. The batteries charge to 90% capacity in approximately 4 hours (8 hours for 500W models). However, it is recommended that the batteries charge for 48 hours after long-term storage.

Check the battery recharge date on the shipping carton label. If the date has passed and the batteries were never recharged, do not use the UPS. Contact your service representative.

When to Replace Batteries

When the status summary screen displays the UPS fault icon with the “Service Battery” alarm and the audible alarm sounds continuously, the batteries may need replacing. Contact your service representative to order new batteries.

NOTE: With the user-replaceable battery feature, UPS batteries can be replaced easily without turning the UPS off or disconnecting the load.

Testing Batteries

For a battery test to run:

SThe batteries must be fully charged.

SThe UPS must be in Normal mode with no active alarms.

SThe load must be higher than 10%.

To test the batteries:

1Plug the UPS into a power outlet for at least 48 hours to charge the batteries.

2Press the button for one second to go to the main menu selection and scroll down to the Control menu using the button.

3Press the button to enter the Control menu.

4Use the button to scroll to the Battery Test option.

5Press the button to start the battery test.

During the battery test, the UPS transfers to Battery mode and discharges the batteries for 25% of the original expected runtime. The front panel displays “Battery test running” and the percentage of the test completed. The results display on the UPS front panel when complete.

UPS Maintenance

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Contents Users Guide September 2009 S 164201786 Table of Contents Network Transient Protector Dell UPS Management Software RS-232 and USB Communication PortsUPS Status Menu Event Log Menu Testing BatteriesDell Tower UPS IntroductionIntroduction What are You Looking For? Find It Here Finding InformationUPS Output Power Safety WarningsSafety Warnings Inspecting the Equipment InstallationUnpacking the System Unpacking the System100/120V Rear Panel Identifying the UPS Rear Panels120V Rear Panel 120V, 1500W/100V Rear Panel Identifying the UPS Front Panel Removing the UPS Front Cover Connecting the UPS Internal BatteryConnect the internal battery connector see Figure Removing the Battery Connector Cover External Battery Module InstallationInstalling the Battery Connector Cover Typical UPS Installation 120V Model Shown Installing the UPSUPS Initial Startup Minimum Upstream Circuit Breaker Rating UPS Output PowerPower Cord Ratings Rating Australia Optional GB2099 to C13 Connecting the Power Cord Installation Starting the UPS OperationUPS Startup and Shutdown UPS Shutdown Starting the UPS on BatteryControl Button Functions Control Button Sequence Control Panel FunctionsStartup Screen Changing the LanguageDisplay Functions UPS Status Screen LockedBad Battery Detected or Battery Disconnected Battery ModeUPS General Alarms Active Battery Test StatusBattery Status Screens Description Status Summary Screens Description Normal ModeStandby Mode Measurements Event LogControl Screens Description Control ScreensIdentification SettingsSettings Description Available Settings Default Setting Settings Description Available Settings Default Setting Settings Description Available Settings Default Setting Settings Description Available Settings Default Setting Behavior on Overload Retrieving the Event LogControlling Load Segments Through the Display Configuring Load SegmentsConfiguring Automatic Start Delay Configuring Automatic on Battery Shutdown Configuring the UPS for an EBM Configuring Battery SettingsConfiguring Automatic Battery Tests Configuring Automatic RestartRunning Automatic Battery Tests RS-232 and USB Communication Ports Additional UPS FeaturesGND RS-232 Communication Port Pin AssignmentDell Network Management Card Dell Network Management Card OptionalDell UPS Management Software Network Transient ProtectorUPS and Battery Care UPS MaintenanceTransporting the UPS Disconnect the internal battery connector see Figure Storing the UPS and Batteries When to Replace BatteriesTesting Batteries Updating the UPS Firmware Specifications Electrical Output 100/120V Models 230V Models Power Levels Efficiency Normal modeElectrical Input Nominal VoltageOperating Temperature Environmental and SafetyTemperature Relative Humidity Safety ConformanceBattery Runtimes Battery ConfigurationVoltage FusesUPS Status Menu TroubleshootingAccessing Alarms and Conditions Event Log Menu Typical Alarms and ConditionsAction Troubleshooting Silencing the Alarm
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J716N, 500W, H965N, H900N, J715N specifications

Dell's power supply units (PSUs) are essential components for Dell servers and workstations, providing reliable power solutions tailored to meet different demands. Among these, the 500W, 1000W, and 1920W/1500W power supplies stand out for their efficiency, performance, and advanced features tailored to various IT environments.

Starting with the 500W power supply, this unit is designed for entry-level servers and workstations. It boasts a compact design that facilitates easy installation in space-constrained scenarios. The 500W PSU operates with a high efficiency rating, contributing to lower energy costs and reduced heat output. It supports the latest energy standards, including 80 PLUS certification, ensuring that customers can rely on it for consistent performance and reliability. This unit is particularly suitable for small to medium businesses looking for cost-effective power solutions for basic applications.

The 1000W power supply represents a step up, featuring dual 12V outputs that provide stable power for more demanding tasks. Designed for mid-range servers and advanced workstations, it balances performance and efficiency, making it ideal for enterprises that require additional processing power for virtualization, data analysis, and high-performance computing tasks. The 1000W PSU includes built-in protections against over-voltage, short circuits, and over-temperature conditions, adding an extra layer of reliability that is crucial for mission-critical operations.

For environments with higher power demands, Dell offers the 1920W/1500W power supply. This robust unit is engineered for high-performance servers and large-scale data centers, where maximum uptime and performance are paramount. The modular design of the 1920W/1500W power supply allows for enhanced cable management, reducing clutter and improving airflow within racks. With an efficiency rating that adheres to 80 PLUS Platinum standards, this PSU not only minimizes energy consumption but also maximizes operational efficiency, making it ideal for organizations looking to optimize their data center environments.

In summary, Dell's 500W, 1000W, and 1920W/1500W power supplies cater to a wide range of computing needs. From entry-level solutions to high-capacity units for demanding environments, Dell ensures that its power supplies provide reliability, efficiency, and performance. As organizations continue to evolve their IT infrastructure, these power supplies remain pivotal in supporting their growth and operational goals.
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