Meet the Mastervolt ChargeMaster Plus 12/100-3 Czone — the next generation multi-charger designed for boats, RVs, and remote power systems. This compact powerhouse delivers fast, safe charging for up to three battery banks while simplifying wiring with built‑in VSR and intelligent communication via MasterBus, CZone, and NMEA.

Built for versatility, the ChargeMaster Plus combines two outputs (one in/output), a DC‑DC converter, a current limiter, and a smart VSR in a single unit. It can charge Lithium Ion, Gel, or AGM batteries, accommodating large or small banks from 400 to 1000 Ah. With the Battery’s Best Friend architecture, it learns the battery chemistry and voltage to deliver the optimal, safe 3‑step+ charging profile every time.

• Three‑battery charging with a total 100 A max charge current at 14.4 V, across up to three battery outlets.
• Worldwide voltage tolerance supports 80–275 VAC at 35–70 Hz, ideal for global passagem and harsh marine environments.
• Two outputs with smart logic including an In/Output path, a DC‑DC converter, and a built‑in current limiter plus VSR for seamless alternator integration.
• Smart charge management quickly assesses State of Charge to maximize battery life and performance.
• Advanced communication integrates with MasterBus, CZone, and NMEA, allowing your charger to talk to displays, shunts, and power systems (including FireCan and CANopen).
• Compact and quick to install with ergonomic terminals and robust connections designed for marine use.
• Safety and compliance CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, and RCM/C‑Tick compliant for worldwide reliability.

The ChargeMaster Plus is designed to replace multiple auxiliary chargers, battery isolators, and separate VSRs, dramatically reducing system complexity and cost. It conserves space, lowers wiring effort, and provides a single, reliable source to power essential electronics and critical systems even during construction or hard underway.

Key features at a glance

• Nominal inputs: 120/230 V AC (80–275 V range), 50/60 Hz
• Outputs: 3 battery outlets, up to 100 A total charging
• Battery compatibility: Lithium Ion, Gel, AGM; 400–1000 Ah total bank capacity
• Display and monitoring: clear status of all three outputs for quick diagnostics
• Physical specs: 15.1 in x 9.8 in x 5.0 in, about 13 lb

Technical specifications

• Nominal input voltage: 120/230 V
• AC current: 8.5 A (230 V) / 17 A (120 V)
• Total charge current: 100 A at 14.4 V
• Number of battery outlets: 3 (max)
• Battery capacity range: 400–1000 Ah
• Smart In-/Output voltage: 12 V; current 5–40 A (adjustable); input current max 40 A
• Display: LED/readout of charge phases
• Dimensions: 15.1 x 9.8 x 5.0 inches
• Weight: 13.0 lb
• Approvals: CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C‑Tick

The Mastervolt ChargeMaster Plus 12/100-3 Czone is the trusted solution for sailors and mobile power users who demand powerful charging, flexible chemistry support, and effortless integration with modern power management systems. Invest in a charging system that grows with your boats, rigs, or remote installations — and enjoy reliable, safe, and efficient battery care wherever you are.