MASTERVOLT ChargeMaster PLUS CZone Charger / 24 V / 20 A / 3 charging outputs

Available within 1-2 weeks
SVB price: €483.15
You save: 9%
Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
€483.15 This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
Available variants:
Item no.
Model no.
MASTERVOLT - Charger ChargeMaster PLUS 24/20-3
Device type
Network AC voltage
80 - 275 V
Battery nominal voltage
24 V
Charging Current
20 A
Charging outputs
Battery Capacity
80 - 200 Ah
Battery type
Lead-Acid, AGM, Gel, Lithium (LifePO4)
Power Lead
Integrated fan
Integrated charging cable
Temperature sensor can be connected
Optional remote display/operation
21 cm
29.1 cm
10.5 cm
2.5 kg

Product details

The complete solution for fast and safe charging
ChargeMaster PLUS is the next generation of battery chargers that integrates multiple functions into one single device.
ChargeMaster Plus features the new "Battery's Best Friend" architecture, which allows it to charge a multitude of battery chemistries, sizes and voltages with the safe and fast 3-step+ charging method. For faster charging, Priority Charge redirects power to the weakest battery, Revival mode automatically brings even fully depleted batteries back to life, and the Pre-Float function (charge retention) eliminates the risk of overcharging smaller batteries.
The charging profile for MASTERVOLT MLI lithium-ion batteries is also included, and it is possible to create a customised, user-defined profile for lithium batteries from other manufacturers, for example, via an optional USB interface and the MasterAdjust software*.
*Download for free in the MASTERVOLT download section

Global charging
ChargeMaster Plus can handle all possible mains voltages and frequencies worldwide. The battery chargers can resist large voltage fluctuations and high temperatures, making them suitable for the harshest environments - perfect for use on boats and in cars. ChargeMaster PLUS units comply with CE, E-mark, ABYC, UL, SAE, CEC and RCM/C-Tick standards.

System simplicity
ChargeMaster PLUS chargers are self-explanatory! They display the charging phase of all three outputs in an easy to understand way. Robust and ergonomic connections save installation time.

Powerful connections
In modern applications, all components work hand in hand. The CAN-based MasterBus allows the charger to communicate with displays, shunts and power systems, including communication standards such as CZone, NMEA and CANopen. The ChargeMaster PLUS can operate as a power supply for sensitive communication equipment or during the construction phase of a boat.

Additional features
MasterBus, CZone and NMEA 2000 communication interfaces
Universal charger with three outputs
Any type of lead-acid battery, including gel or AGM batteries, as well as large or small battery banks, can be gently charged on a single battery charger.
Also suitable for charging MASTERVOLT MLI lithium-ion batteries
Adjustable to the parameters for lithium batteries of other manufacturers via MasterBus USB interface (optional) and free Masteradjust software
Charges multiple batteries simultaneously
Safe charging: quickly detects charging status, ensuring a longer battery life
Very wide operating range of 80-275 V AC, 35-70 Hz for worldwide use
Compact, easy to install and connect

ChargeMaster PLUS ensures faster and safer charging!

Technical data

ChargeMaster PLUS 24/20-3
Nominal output voltage (output 1,2 & 3) 24 V
Number of battery outputs 3
Charging current in total 20 A at 28.5 V
Recommended battery capacity (total) 80 - 200 Ah
Nominal input voltage 120/240 V, 50/60 Hz
Max. AC current (230 V / 120 V) 2.8 A / 5.6 A
Mains/power supply mode Yes
Display LED
Dimensions HxWxD 291 x 210 x 105 mm
Weight: 2.5 kg
Certifications CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA
Charging characteristic IUoUo, automatic / 3-stage for gel/AGM/lithium-ion
Temperature compensation (only for lead acid types) -60 mV/°C, temperature sensor included
Voltage compensation Yes, via MasterShunt
DC power consumption < 2 mA (MasterBus off)
Current control function via MasterBus or CZone
Power factor control Yes, > 0.98
Temperature range (ambient temp.) -25 to +80 °C
Cooling Vario fan
Waterproofing IP 23
Protection systems Overtemperature, overload, short circuit, high/low battery voltage, spark protection
MasterBus compatibility Yes


de-flag Manual
PDF, 1,31 MB
multi-flag Manual
PDF, 1,27 MB

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100% recommend SVB
Roman R.
by Roman R. Flag of Austria 2/8/2023 Verified purchase
Charging multiple battery banks
Compact and powerful charger, good quality easy to use

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