I am selling a 12 volt, 8 amp trolling battery charger from Marinco Guest, model # 36082S. When combined with an alternator power module it continuously charges the trolling motor or house battery while the engine is running: Extends fishing time; Harness previously unused or wasted alternator power for trolling use; Extends useful life of expensive trolling batteries. For 12 Volt systems and 8 amp charging power. The most efficient system available-uses relays to avoid heat loss from the alternator to the batteries. Includes charger only. Specifications: •Brand: Marinco Guest •Model #: 36082S •Charger: 6 1/4" L x 6 3/4" W x 3" H •Mounts: (4) 5/16" diameter. holes with 6 1/4" x 5" apart center on center •6' ft. power cable •20A 12V •Banks: 2 •Instruction / Installation manual included. It is new and does come as shown. For more information regarding this item contact a dealer in your area.