One of the advantages of using a Mass Combi is the ability to
power loads even when mains supply is limited by using energy
from your batteries. For example, a 10 A load can be powered
from a 4 A shore connection. In addition, the design of the Mass
Combi is both unique and characteristic of Mastervolt. Rather than
installing heavy transformers, our lightweight, high-frequency
technology offers major benefits regarding size, weight and
sound (no hum!). The technology also ensures an exceptionally
high efficiency with a minimal conversion loss and a low no-load
consumption. The included battery temperature sensor will make
sure the batteries receive the best possible charge. The Mass Combi
meets all your requirements and more!
Batteries: 3 x MVG 12/120 Ah
The total of AC and DC consumers requires around 1 kWh per day
(2 kWh in total). Totally discharging the batteries is not advisable so opt for
a maximum of 50 % discharge = 4 kWh. Taking into account the various
appliances and required peak loads we suggest a 12 V system.
The required battery capacity is 4 kWh/12 V = ± 330 Ah.
Charger/inverter: Mass Combi 12/1600-60
280 Ah needs at least 25 % of the battery capacity for charging power, so in
this case we chose for a 60 A charging power via the Mass Combi. The Mass
Combi has a battery charger that allows you to safely, quickly and completely
charge two battery banks; starter and service batteries can be separately
charged. Additionally the Mass Combi can be used to convert the power for
your AC applications, so using everything simultaneously is also possible.
Monitoring: EasyView 5
Waterproof system monitor with intuitive touchscreen. Thanks to the colour
touchscreen and multi-language menu, the display is a pleasure to operate.
Easily customizable favourite pages show all relevant system information at
The products in this system communicate with each other via MasterBus.
This brilliantly simple platform for communication and connections ensures
that all components ‘speak’ the same language. The result is a single
communication protocol with high-speed CANbus technology.
1 x MasterShunt 500
MasterBus integrated battery monitor, with detailed information on the
status of your batteries for an optimised charging process, incl. voltage,
current, time remaining and consumption capacity in percentage.
2 x DC Distribution 500
This distribution model connects up to four DC devices to the DC groups,
such as a battery charger, inverter, alternators and solar panels.
Other system components
1 x AGM 12/130 starter battery;
1x Mass GI 3.5 kVA/16 A; lightweight
isolation transformer for safely
using shore power, vital for steel or
aluminium vessels to avoid electrolysis
1 x Charge Mate Pro; the ultimate
solution for charging the service
batteries with the original alternator;
2 x Shore Fix, 16 A/30 mA earth leakage
1 x fuse;
1 x shore power cord 16 A, 25 m;
1 x shore power inlet 2+PE, 16A/230V;
2 x battery switches for switching
on and off the consumers attached
to the battery;
1 x Spotlight Chrome; the most
versatile, durable, consistent and easy-
to-use spotlight on the market.
COMPLETE COMFORT ON THE WATER