Access Control Backup Batteries

In this article we will cover the following:

• Why is Backup Power Necessary?
• Supported Specs
• Recommended Batteries
• Helpful Links
• Contact Support or Sales

Why is Backup Power Necessary?

The use of a backup battery supply ensures the uninterrupted operation of access control systems in the event of a power outage. The DC20 has provisions for a backup battery to support offline mode in the case of a loss of primary power. 

Supported Specs

The battery must be 12V Sealed Lead Acid (SLA) type, with F1 or F2 style connectors. The maximum space reserved for a standby battery(s) is 300mm L x 80mm W x 110mm H. Two new and unused batteries of the same make and model may be wired together in parallel to increase standby capacity.

The battery capacity should be sized appropriately based on the power consumption of the overall
system and the desired run time during an outage. Many factors, including, but not limited to, the
type of powered devices used (locks, readers, and other power accessories), unlock frequency,
battery age, and even ambient temperature, can affect the total backup duration.

Reliability and Consistency: 12V SLA batteries are known for their reliable and consistent power output. This is crucial in access control systems, where any power interruption could lead to security vulnerabilities or system failure.

F1 and F2 Style Connectors: The F1 and F2 connectors provide a standardized and secure method for connecting batteries to access control systems. The uniformity simplifies installation and maintenance procedures, making it easier for technicians to work on the system when needed.

Recommended Batteries

- MightyMax Model ML9-12, 12 Volt 9 amp Hr

- MightyMax Model ML7-12 12 Volt 7 2 amp Hr

- ALTRONIX Lead Acid Battery - 12VDC/7AH

- ALTRONIX Lead Acid Battery - 12VDC/5AH

Helpful Links

• Access Control Deployment Guide and Best Practices (Manuals located here)
• Hardware Pre-Install Guide
• DC20 Overview
• Installing/Registering the DC20

Contact Support or Sales

Have more questions? Contact Rhombus Support at +1 (877) 746-6797 option 2 or support@rhombus.com.

Interested in learning more? Contact Rhombus Sales at +1 (877) 746-6797 option 1 or sales@rhombus.com.