The Millertech Dark Speed 12V–24V On The Run Marine Charger gives anglers the ability to recharge their lithium battery bank directly from their boat’s alternator, keeping trolling motors, fish finders, and electronics powered without relying on shore power or generators. This charger intelligently prioritizes your starting battery first, then diverts excess alternator power to your auxiliary lithium bank at the correct voltage for 12V or 24V systems. Its advanced design can even wake up a depleted lithium battery’s BMS automatically, removing the need for manual resets. Built with rugged, waterproof marine-grade construction, it is engineered to withstand harsh environments while offering multiple protection features against low voltage, overheating, and over-voltage. The Dark Speed charger’s fast, efficient charging algorithms extend battery life and reduce downtime, delivering consistent power while you run. Compared to traditional chargers that require shore power or generators, the Dark Speed system delivers continuous charging while in motion, maximizing efficiency, eliminating daily charging stops, and extending your time on the water.

• Input voltage: 90-130V AC
• AC power draw: 650W
• Output voltage 1: 14.5V 15A
• Output voltage 2: 28.8V 15A
• Start transfer voltage: 14V
• Stop transfer voltage: 13.3V
• IP65 waterproof-rated for marine conditions
• Charges auxiliary lithium batteries directly from boat alternator
• Prioritizes starting battery before charging 12V or 24V lithium banks/li>
• Automatic BMS wake-up function for depleted lithium batteries
• Protection against low voltage, overheating, and over-voltage
• Fast charging algorithms extend lithium battery health and lifespan
• Manufacturer's three-year warranty

The Millertech Dark Speed 12V–24V On The Run Marine Charger gives anglers the ability to recharge their lithium battery bank directly from their boat’s alternator, keeping trolling motors, fish finders, and electronics powered without relying on shore power or generators. This charger intelligently prioritizes your starting battery first, then diverts excess alternator power to your auxiliary lithium bank at the correct voltage for 12V or 24V systems. Its advanced design can even wake up a depleted lithium battery’s BMS automatically, removing the need for manual resets. Built with rugged, waterproof marine-grade construction, it is engineered to withstand harsh environments while offering multiple protection features against low voltage, overheating, and over-voltage. The Dark Speed charger’s fast, efficient charging algorithms extend battery life and reduce downtime, delivering consistent power while you run. Compared to traditional chargers that require shore power or generators, the Dark Speed system delivers continuous charging while in motion, maximizing efficiency, eliminating daily charging stops, and extending your time on the water.

• Input voltage: 90-130V AC
• AC power draw: 650W
• Output voltage 1: 14.5V 15A
• Output voltage 2: 28.8V 15A
• Start transfer voltage: 14V
• Stop transfer voltage: 13.3V
• IP65 waterproof-rated for marine conditions
• Charges auxiliary lithium batteries directly from boat alternator
• Prioritizes starting battery before charging 12V or 24V lithium banks/li>
• Automatic BMS wake-up function for depleted lithium batteries
• Protection against low voltage, overheating, and over-voltage
• Fast charging algorithms extend lithium battery health and lifespan
• Manufacturer's three-year warranty