What is Dynamic Charge Acceptance?
To adequately support new vehicle electrical systems and start-stop technology, lead-acid batteries must maintain a high Dynamic Charge Acceptance (DCA). Higher DCA allows more energy from the alternator to be recovered and stored faster, allowing the battery to support electrical loads and to be cycled more often during “anti-idle” operation periods. Typically, regular SLI batteries start with a relatively high DCA. Still, because of acid stratification, the DCA degrades rapidly and, within a few short months, can stabilize at around 30% to 50% of the original.