ProMar1 DS Digital - 10 Amp - 2 Bank Charger. The ProMar1 DS Generation 3 features all-digital charging technology with a fully automatic 4-stage charging algorithm (Analyzing, Charging, Conditioning, Auto Maintain) proven to extend battery life. Safe for short- and long-term storage, it includes dual-mode charge status indicators, battery and wiring fault detection, rugged shockproof construction, pre-wired waterproof inline DC fuses and nickel-plated copper ring terminals. Quiet EMI design meets US FCC emissions requirements. Output: designed for 12/24V systems with a 10A charge capability per bank and 2 charging banks. Item is non-portable and intended for marine/boating electrical charging applications. (Includes Proposition 65 warning where applicable.)