Phase Three “Smart” battery charging technology is now available in a wide range of power levels, allowing you to select the right size, features and flexibility you require for virtually any application from providing quick recharge of auxiliary batteries in vehicles parked in the station house, to powering continuous loads and maintaining peak charge in battery systems in mobile as well as industrial generator applications. These chargers interact with batteries to put them through the optimum 3-stage charge process which provides for fastest recovery and ideal conditioning, maximizing battery performance and extending battery life. A selector switch adjusts output voltage to adapt for gel cell, flooded lead acid/AGM battery types. An optional temperature compensation sensor also adjusts output for ideal voltage based on changes in the batteries ambient temperature. All models are housed in a rugged stainless steel case with a durable white powder coat finish (except PT-7) and the internal circuitry is polyurethane coated for maximum corrosion-resistance.