Banshee 12V 2/10/50 Amp Automatic Charger/Maintainer TECHNICAL DATA = Charger Type = AUTOMATIC Maintainer/ChargerInput Voltage = 120 VACOutput Voltage = 12 VDCOutput Current Charge = 2A/10AOutput Engine Start = 50A FEATURES = Fully Automatic Maintainer/Charger Switches to maintain mode once fully charged LED power and charging indicators Designed to maintain 12V lead-acid batteries (WET, MF, AGM, GEL) Slow Charge, Fast Charge, and Engine Start modes! CHARGE RATE SELECTOR SWITCH Use the charge rate selector switch to select the charge rate or engine starting setting you require. BATTERY TYPE SWITCH = Use this switch to set the type of battery to be charged. SLI = (Flooded/Regular/Standard) These initials stand for Starting, Lighting, and Ignition, the 3 basic functions which a battery performs on all normal vehicles.Typically used in cars, trucks, and motorcycles.These batteries have vent caps and are typically marked Low Maintenance/Maintenance Free. DEEP-CYCLE = Deep-cycle batteries are usually marked as Deep Cycle/Marine.Deep-cycle batteries are typically larger than other types. AMMETER & LED INDICATORS AMMETER As a battery takes on a charge, it draws less current from the charger. Correspondingly, the meter will show less current being drawn by the battery. When the current stops decreasing, the battery is charged.The START area of the meter indicates a high rate of current being drawn from the charger.When cranking an engine, the meter needle will be at the extreme right side of the start area.The 2 amp charge rate may indicate some activity on the meter, although the meter does not have the resolution to display this low rate. LED INDICATORS FULL CHARGE = When lit, this LED indicates that the battery is fully charged and the charger has stopped charging and switched to the Maintain Mode of operation. If the 12V DEEP CYCLE battery type was selected, the CHARGED (GREEN) LED comes on when the battery is charged enough for normal use.POWER ON = When lit, this LED indicates that there is AC power supplied to the charger.