Specifications: Large Analog meter with 5-L.E.D Display No Spark Charging, Reverse Battery Protection Accusense-Charge Series High-Reliability Economy Series (Generation IV model) Multi Stage Charging Algorithm Pre-Qualification Test Stage tests the condition of the battery and prepares battery with a specialized Test Charge Algorithm to prepare battery pack for fast charge. Up to 18 A Output Fast charge to quickly replenish 80% capacity Cell-Balancing. The Equalization Stage balances battery cells and increases charged capacity to near 100% DPI's computational algorithm computes the precise amount of Top-Off Charge which brings the battery to 100% state of charge. Automatic A.C. Disconnection / Reconnection after charger has finished charging conserves energy while continuing to monitor and trickle charge battery pack Periodical Auto-Restart, when batteries are left in storage, assures battery pack is ready to go at the start of the season. Patent Pending Selector allows user to charge most every lead-acid battery type 32 Charge modes available via user accessible switch. Large and Small Capacity Battery Flooded, AGM, Sealed Multi-Chemistry UL/CSA Listed CEC Compliant Designed/Made In USA 30lbs (13.5kg), 6.25x6.875x10.25in (159x175x260mm)