When should lead-acid type batteries be replaced according to the manufacturer's recommendations?

Lead-acid batteries are critical components in fire alarm systems, providing backup power during utility failures. Adhering to the manufacturer’s specific recommendations for battery replacement is essential to ensure optimal performance and safety.

Batteries should always be replaced when they fall below the levels specified by the manufacturer to prevent failures during critical times, such as an emergency. Manufacturers often set a minimum threshold that, when exceeded, indicates a reduction in the battery's ability to hold a charge effectively. This ensures that the battery can still deliver the required power when needed. By replacing batteries based on the manufacturer's guidelines, you enhance the reliability of the fire alarm system and reduce the risk of system failure.

In contrast, replacement at thresholds like below 75%, 50%, or 25% might not align with the specific performance standards set by the manufacturer and could lead to either premature replacement or, conversely, operational failure if the battery is allowed to degrade to an unacceptable level. Therefore, following the manufacturer's recommendations is crucial for maintaining the integrity and functionality of fire alarm systems.