If you work in fire systems, choosing the right battery is crucial to ensure power during emergencies. However, there’s often confusion between two important battery ratings: Cold Cranking Amps (CCA) and Ampere hours (Ah).
In this blog post, the experts at Valen will clarify the differences between these ratings and explain the significance of CCA in fire system applications.
What is CCA?
CCA stands for Cold Cranking Amps, which measures how quickly a battery can provide power in cold conditions. It’s a key factor in how well a battery starts up, especially in cold weather.
The rating refers to the number of amps a battery can deliver at -18°C/ 0°F for 30 seconds while maintaining a voltage of at least 1.2 volts per cell (7.2 volts for a 12-volt battery). The higher the CCA rating, the greater the starting power of the battery in cold conditions.
What is Ah?
Ah, or Ampere hours, indicates how long a battery can deliver power over time. This rating is more about endurance, showing how long a battery can last before needing a recharge.
The Difference Between CCA and Ah
There’s no direct link between CCA and Ah. CCA is about short bursts of power, like starting a car, while Ah is about sustained power over time, like running a mobility scooter for hours.
The only small relationship is generally as the CCA rating increases, so does the Ah Capacity rating.
Why is CCA Important in Fire Systems?
Fire systems, such as emergency warning systems or diesel pumps, need a quick power boost, especially in emergencies. A battery with a high CCA rating ensures these systems start quickly and reliably, even in cold conditions. If a battery’s CCA is too low, the system might not start when it’s needed most, risking property and lives.
Choosing the Right Battery For fire systems, it’s important to use batteries that meet specific standards (AS 4029 compliant and SSL approved). The Fire Protection Association Australia recommends VRLA AGM batteries, which have higher CCA ratings and are better suited for fire systems. Always ensure the CCA rating matches or exceeds what your system requires. If you’re unsure, it’s best to choose a battery with a higher CCA to avoid any risks.
If you need help finding the right battery for your fire system, the experts at Valen can assist. Valen’s AGM batteries have been trusted in the industry for over 15 years, and our team is ready to provide the technical support you need.
