Fully automatic. Precise voltage regulation. Field adjustable (for gel batteries, etc.) Does not drain battery if AC is off. LED signifies proper operation current, limiting over-temperature protection. Reverse-polarity protected. Bat Sav'r includes 6' DC output wires with alligator clips. Plugs directly into AC outlet.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov