8.1
Auto-Learning Battery Run Times
As batteries age, the estimated run times may become less accurate. The Liebert GXT4 is
programmed to "learn" from a full battery discharge and modify the estimated runtime for the
measured battery capacity. This can improve accuracy and compensate for aging batteries or
batteries that operate at different ambient temperatures.
The UPS will update the anticipated run time calculation only under certain conditions.
• The UPS must have a steady load that is greater than 20%.
• The UPS must be at 100% charge at the start of a battery discharge.
• The battery discharge must continue uninterrupted until the batteries reach their end-of-
discharge voltage.
If all conditions are not met, the run time calculation will not be modified.
If the configuration program is used to change the number of battery cabinets, then the values in the
battery above table will be restored. This will override any value that is Auto-Learned.
8.2
Product Warranty Registration
Registration is not required to activate the product warranty on a Liebert UPS. Registration is
required to qualify for the Product Protection Promise. To register, visit the Emerson Network
®
Power
Web site to fill out the online form at:
www.emersonnetworkpower.com/en-US/Forms/Pages/LiebertProductWarrantyRegis-
tration.aspx
• To contact warranty support by e-mail:
8.3
Technical Support
Technical support contacts are listed on the back cover of this document. To contact Emerson Channel
Product Support:
Phone
• NORTH AMERICA: 1-800-222-5877
• OUTSIDE NORTH AMERICA: 00-800-1155-4499
E-mail
• TECHNICAL SUPPORT:
®
™
Liebert
GXT4
dpg.warranty@emerson.com
liebert.upstech@emerson.com
48
Specifications