Mastervolt ChargeMaster Plus 40A 24v Output 120/230V Input C-Zone MasterBus NMEA

The Mastervolt ChargeMaster Plus 40A 24V is a compact, multi-output charger built for serious boat power systems. It unifies charging tasks across multiple batteries and communicates with MasterBus, CZone, and NMEA for smart, connected control.

• Two-output design with integrated control: two charging outputs plus an input/output channel, a DC-DC converter, current limiter, and built-in VSR for flexible, centralized charging.
• Three battery outlets: supports charging up to 3 batteries (max), enabling multi-bank setups on a single unit.
• Battery chemistry versatility: compatible with Lithium Ion, Gel, and AGM batteries, accommodating large or small battery banks (160–400 Ah).
• High charging capacity: up to 40 A per output and a total charge current of 40 A at 28.8 V to power multiple banks efficiently.
• Nominal output and smart options: nominal 24 V output with Smart In-/Output options of 12 or 24 V; adjustable current (5–10 A at 12 V, 5–20 A at 24 V).
• AC input and power details: accepts 120/230 V (80–275 V) at 50/60 Hz; max AC current 6.8 A at 230 V / 13.5 A at 120 V; includes power supply mode.
• Display and monitoring: LED display provides real-time status and quick checks on charging progress.
• Communication & monitoring: integrates MasterBus, CZone, and NMEA for synchronized system control and monitoring.
• Physical specs: dimensions 15.1 x 9.8 x 5.0 inches; weight 13.0 lb; robust marine-grade construction.
• Approvals: CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC, RCM/C-Tick for marine and safety compliance.
• Charge characteristics: IUoUo profile with automatic multi-trap charging for Gel/AGM/Lithium Ion, plus user-defined options.
• Temperature compensation: -60 mV/°C / -76 mV/°F with an included temperature sensor for accurate performance in varying conditions.
• Additional electrical behavior: DC voltage compensation via MasterShunt; power consumption on the DC side < 2 mA when MasterBus is off; current control available through MasterBus; power factor control > 0.98.

With the ChargeMaster Plus, you gain safe, fast charging across multiple battery chemistries, a streamlined installation that replaces multiple chargers and isolators, and seamless integration with displays and power management systems through MasterBus, CZone, and NMEA. It enables reliable, intelligent charging for multiple batteries even when you’re underway, helping protect your investment and keep critical systems powered.