The Mastervolt ChargeMaster Plus 110A 24V is a high‑performance multi‑charger designed for marine and mobile power systems. It coordinates charging across multiple banks from a single compact unit, delivering two adjustable outputs plus integrated power management for reliable, streamlined charging control.
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Two adjustable charging outputs: Two battery outlets with a secondary voltage of 14.25 V (12 V systems) or 28.5 V (24 V systems) and adjustable secondary current (5–15 A at 12 V / 5–20 A at 24 V).
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High total charging capacity: Max 110 A per output; total 110 A at 28.8 V, enabling fast charging for battery banks from 400–1000 Ah.
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Integrated power management: Built‑in DC‑DC converter, current limiter, and VSR to ensure efficient energy use and seamless alternator charging.
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Battery chemistry compatibility: Designed to work with Lithium Ion, Gel, or AGM batteries.
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Smart charging profile: IUoUo with a proven 3-step+ charging method and Safe Charge to quickly recognize State of Charge and extend battery life.
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Global input range: Wide AC input range of 80–275 VAC, 35–70 Hz, designed to handle voltage fluctuations and harsh marine environments.
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Communication & integration: Fully compatible with MasterBus, CZone, and NMEA; communicates with displays, shunts, and power systems, including FireCan and CANopen standards.
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Compact, rugged design: Compact form factor with robust, ergonomic connections; CE, ABYC, UL, SAE, ISO 8846, CEC and RCM/C-Tick compliant.
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Operational versatility: Can operate as a power supply for delicate electronics or during boat construction, ensuring reliability from day one.
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Physical & capacity specs: Battery outlets up to 2; battery capacity range 400–1000 Ah; nominal output 12 V; dimensions 15.1 x 9.8 x 5.0 inches; weight 13.9 lb.
By integrating two charging outputs, a DC‑DC converter, current limiter, and VSR in one compact unit, the ChargeMaster Plus simplifies installation, reduces wiring complexity, and lowers system costs while delivering reliable charging across large or small battery banks. Smart charging and broad compatibility with MasterBus, CZone, and NMEA enable seamless monitoring and control with compatible displays and power systems, making it suitable for new builds or upgrades in demanding marine environments.
| Communication & monitoring |
| Communication interfaces |
MasterBus, CZone, NMEA |
| General specifications |
| Nominal output voltage |
12v |
| Secondary output voltage |
14.25 /28.5 V (12/24 V) |
| Secondary output current |
5-15 A at 12 V / 5-20 A at 24 V (adjustable) |
| Max. charge current per output |
110 A |
| Max. AC current (230 V / 120 V) |
15.75 A / 31.5 A |
| Total charge current |
110 A at 28.8 V |
| Number of battery outlets |
2 (max.) |
| Battery capacity range |
400-1000 Ah |
| Nominal input voltage |
120/230 V (80-275 V) 50/60 Hz |
| AC connection |
screw terminals, suitable up to up to 6 mm |
| Power supply mode |
yes |
| Galvanic isolation |
yes |
| Display/read-out |
LED display |
| Dimensions, hxwxd |
15.1 x 9.8 x 5.0 inch |
| Weight |
13.9 lb |
| Approvals |
CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC, RCM/C-Tick |
| Technical specifications |
| Charge characteristic |
IUoUo, automatic / 3-traps+ voor Gel/AGM/nat/Lithium Ion + een door de gebruiker gedefinieerde optie |
| Temperature compensation |
-60 mV/°C / -76 mV/°F; incl. temperature sensor |
| DC voltage compensation |
through automatic compensation or MasterShunt |
| Power consumption (DC side) |
< 2 mA (MasterBus off) |
| Current Control function |
yes, through MasterBus or CZone |
| Power factor control |
> 0.98 |
| Temperature range (ambient temp.) |
-13 °F to 176 °F |
| Cooling |
vario fan |
| Protection degree |
IP23, vertical mounting |
| Protections |
over-temperature, overload, short circuit, high/low battery voltage, ignition protection |
| Charger Status Interface (alarm contact) |
yes, using a Multipurpose Contact Output (code 77030500) |
