Mastervolt power systems in Darwin
We're a Mastervolt dealer and installer through the Brunswick group. We fit Mastervolt lithium batteries, chargers and inverters, and tie them into the rest of the boat over MasterBus or CZone.
What we do with Mastervolt
- Sizing the battery bank and the charging to what you run and how long you're out
- MLI Ultra lithium batteries, wired to a Mastervolt charger that sets itself up for them
- Shore power charging that can take the place of extra chargers and battery isolators
- Inverter chargers for 230 volt power on board
- DC to DC converters for 12 volt gear on a 24 volt boat, and for charging a second battery
- MasterBus and CZone set up, so the power system shows on one screen
The parts of a Mastervolt system
- MLI UltraLithium batteries at 12 and 24 volts, with the BMS, monitoring and a battery switch built into a waterproof case
- ChargeMaster PlusBattery chargers that can replace extra chargers, battery isolators and VSRs
- Mass Combi Ultra and CombiMasterInverter and charger in one, for 230 volt power on board
- Magic and Mac PlusDC to DC converters. They can also run as a three step charger for a second battery
- Alpha alternators12 and 24 volt alternators, supplied with the Alpha Pro charge regulator
- Battery MateBattery isolators that charge separate banks from one source
- MasterBus and EasyView 5Mastervolt's network, and a display to watch and run the system
Names from Mastervolt's own site.
Questions people ask
Who makes Mastervolt?
Mastervolt was founded in 1991 and designs its gear in Amsterdam, Auckland and Wisconsin. It's part of Navico Group, a division of Brunswick Corporation.
Does Mastervolt work with CZone?
Yes. MLI Ultra batteries talk over CZone, MasterBus and NMEA 2000, and a MasterBus Interface joins the two networks so each can show and run the other.
Can I watch the system on my phone?
Yes. CZone's Connect BT plugs into MasterBus and shows compatible Mastervolt batteries, chargers and inverters in the CZone 360 app.
Is an MLI Ultra a straight swap for my old batteries?
The MLI Ultra 12/1250 is made to drop into a Group 31 or Group 49 battery space. The charging usually needs to change with it.
Mastervolt or Victron?
We fit both. We'll recommend the one that suits the boat and what's already on it.
Rated at 25 degrees
Mastervolt quotes the MLI Ultra's 3,500 cycle life at 25 °C. Darwin's average maximum sits above 30 °C every month of the year, so where the battery goes, and how it breathes, matters as much as its size.
The MLI Ultra is fully waterproof, which counts on a boat that lives on a trailer through the wet.
Wired to a supported Mastervolt charger with its communication cable, the battery sets the charger up to suit itself. We still check every source that charges it, the outboard and the shore power included.
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Lithium batteries and power systems
More usable power at a fraction of the weight, charged properly from the outboard, shore power and solar.
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Boat rewiring and tidy-ups
Old boats collect wiring. We strip it back and rebuild it properly, with every circuit labelled.
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New boat fit-outs
A new hull is the best chance to get it right. We plan the electrical side before anything gets drilled.
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Digital switchingCZoneDealer and installer through the Brunswick group
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PowerTech supportVictron EnergyAuthorised dealer, and the technical support contact as a dealer and installer
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LithiumAmptronAuthorised dealer for BluEdge lithium batteries
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NavigationSimradDealer and installer through the Navico group
One system, one screen
Tell us what's on the boat and how you use it. We'll size the Mastervolt gear and quote it with the fit.