Industry recognized with the 2010 IBEX Innovation Award, ProNauticP employs our ProMar Digital Performance Charging Platform which combines all digital control and software-based power conversion technology with global energy management features. ProNauticP addresses the trend of incorporating and using more 12-volt electronics on-board today's power, sail, cruising and sport fishing boats. Boasting twelve digitally-controlled performance charging profiles with finger tip selection, ProNauticP fully charges, conditions, maintains and re-conditions batteries while extending battery life and maximizing battery reserve power performance. ProNauticP is Power Factor Corrected with auto-ranging global AC input allowing all models to operate off a standard household power connection. Featuring dual digital displays for real-time display of actual charging voltage and amperage and AC power-on diagnostics with pass or fail status in addition to discreet fault indication for mis-wiring or adverse battery bank conditions. Description 12 Volt 20 Amp 3 Bank AC Input Voltage - 100-260 Autoranging Amperage @ 100/240 VAC - <5.0 / < 2.5 Cycle - 50/60 10.25"L x 8.5"W x 3.5"H