MAINTAINING THE UPS SYSTEMEaton®9390 UPS (20–80 kVA) and 9390IT (20-40 kVA) Installation and Operation Manual 164201603 Rev 4 www.eaton.com/powerquality 13-313.2.4 Battery MaintenanceNOTE DO NOT DISCONNECT the batteries while the UPS is in Battery mode.Contact your Eaton service representative for battery maintenance. Batteryreplacement and maintenance should be performed only by authorized servicepersonnel.13.3 Recycling the Used Battery or UPSContact your local recycling or hazardous waste center for information on properdisposal of the used battery or UPS.W A R N I N G Do not dispose of the battery or batteries in a fire. Batteries may explode. Proper disposal of batteries isrequired. Refer to your local codes for disposal requirements. Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes. Itmay be toxic.C A U T I O NDo not discard the UPS or the UPS batteries in the trash. This product contains sealed, lead‐acid batteriesand must be disposed of properly. For more information, contact your local recycling/reuse or hazardouswaste center.C A U T I O NDo not discard waste electrical or electronic equipment (WEEE) in the trash. For proper disposal, contact yourlocal recycling/reuse or hazardous waste center.13.4 Maintenance TrainingA basic training course, available from Eaton, gives you a competent workingknowledge of the UPS system operation and teaches you how to perform first levelcorrective maintenance. For more information about training and other services,contact the Eaton Help Desk (see page 1-8).