APC AP9924 User Manual

When installing the Battery Management System: 

• Cover the batteries with an insulating blanket before installing the 

harnesses.

• Wear safety glasses, rubber gloves, and rubber boots.
• Use double-insulated tools. 
• Do not short-circuit the battery terminals; a short circuit could cause 

the batteries to explode.

• Do not lay tools or metal parts on top of the batteries or near the 

cable lugs.

• Remove watches, rings, and other metal objects.
• Use only cables supplied by APC unless otherwise indicated. 
• For the UPS and switch gear, use Lockout/Tagout safety procedures 

(which remove access to a device and physically label the device as 
intentionally out of service) before working on the batteries.