The ProSportHD features a lightweight, tri-surface heatsink design. This delivers significantly faster charging through optimal cooling, while delivering true rated constant current charging amps during charge mode. Fully automatic multi-stage charging enhances battery performance while extending battery life. ProMariner Digital Technology Distributed-On-Demand™ Technology Heavy Duty Tri-Surface Extruded Heat Sink Design Expanded LED Display with Completion Status Gauge Lightweight Design Auto-Maintain Energy Saver Mode Fully Automatic 5-Stage Digital Performance Charging Built-in Quality and Safety Easy Installation and Operation

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov