Blue Sea 7520 P12 LED Remote f/Battery Chargers [7520]P12 Battery Charger LED Remote LED Indicators Charging LED Quick check for green light confirms charging Charge Stage Displays charging stage Equalize LED Indicates the charger is currently in equalization mode Fan Mode Indicates charger's internal fan mode Charge Output Displays the percentage of output current for each battery. Will also indicate maximum output setting when maximum output is adjusted to accommodate for AC source limitations Alert