Dual Pro Recreational Series Battery Charger: RS1, 12v Approved for Wet Cell and Absorbed Glass Mat (AGM) batteries Designed for use in fresh and salt water Dependable, rugged construction and waterproof Independent outputs and fully automatic Battery maintenance mode Two year warranty DC charge cables = 5ft and AC power cord = 3ft Approved and meets ISO 8846 Marine standards LED lights indicate Each Batterys state of charge Reverse polarity protected and no installation restrictions Ignition protected (US Coast Guard 33 CFR 183.410) FCC 15 Parts A and B Interference Compliant