The Solar Boost Sun Charger (SC30) is Blue Sky's new entry-level PWM solar charge controller. It charges 12V batteries at up to 30A. It uses precise PWM charge voltage control combined with a sophisticated 3-stage charge algorithm to optimally charge flooded, GEL or AGM lead-acid batteries. To periodically condition flooded lead-acid batteries, the Sun Charger 30 will also perform a manual or automatic Equalization charge.