Deltran Battery Tender Power Plus 3 Amp nput: 120VAC @ 60 Hz Output: 12 Volts DC @ 3 Amps 4-Step Fully Automatic Charging (Initialization, Bulk, Absorption, Float) Automatically switches to float / maintenance voltage after fully charging the battery. Quick Disconnect accessories included: Alligator clips and Ring Terminals Spark Proof Water Resistant Short Circuit Protected Reverse Polarity Protected Safety timer: 72 hours 5-Year Warranty 50 State Compliant Agency Approvals: UL, BC, FCC, RoHS Dimensions: 6.8 L X 3.68 W X 1.96 H Weight: 1.1 lbs (charger only)