Temperature compensation algorithm for Interrupted Charge Control Regime for a VRLA battery in standby applications

The valve-regulated lead- acid battery is the main battery type employed in standby services within a range of recommended operating temperatures. The float charge regime is normally used to maintain the charge in these batteries, it has limitations that can damage the battery and shorten its life. An interrupted charge control (ICC) regime is developed to prolong the service life of the batteries in standby applications. Battery manufacturers provide temperature compensation schemes for float charge regimes however no such compensation exists for the ICC regime. This paper introduces a temperature compensation algorithm for the ICC regime, which is necessary to prevent overcharging and undercharging in normal operations.