Dual Battery Systems
Tour longer and power fridges, camp lights, compressors & inverters without risking your start battery.
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How It Works
DC-DC Charging
Safely charges an auxiliary battery from a smart/standard alternator and solar. Correct multi-stage profiles for AGM, Gel & LiFePO₄.
- Alternator + Solar MPPT in one (model dependent)
- Temperature compensation & chemistry presets
- Isolates start battery when engine off
Battery Management
All-in-one systems combine AC (mains), DC-DC and Solar charging with advanced monitoring, SOC and load control.
- Single brain for charge sources
- Dash/display & app visibility
- Programmable outputs & alerts
Distribution & Loads
We build neat, fused distribution to run fridges, lights, air & inverters—wired for reliability and serviceability.
- Anderson charge/solar ports
- Resettable breakers / MIDI fusing
- Lithium-ready cabling & lugs
Oz Off Road Packages (Fitted)
Weekender Dual Battery Kit (Under Bonnet)
From $2,399 Fitted- Battery tray — $40
- POWER AGM Battery 85Ah — $330
- Redarc BCDC1225 — $550
- Mounting Bracket — $90
- Fuse holder bracket — $65
- Surface Mount Housing — $79
- Battery cable — $65
- DC Voltmeter — $30
- Consumables — $85
- Labour — $1,050
Pricing shown is indicative; exact cost depends on vehicle, placement and cable runs.
Weekender Dual Battery Kit (Tub/Boot)
From $2,299 Fitted- Battery tray — $40
- POWER AGM Battery 85Ah — $330
- Redarc BCDC1225 — $550
- Mounting Bracket — $90
- Fuse holder bracket — $65
- Surface Mount Housing — $79
- Battery cable — $65
- DC Voltmeter — $30
- Consumables — $85
- Labour — $1,050
Installed in tub/boot with tidy panel mounting and Anderson service ports.
REDARC • Victron • Enerdrive • HULK 4x4
REDARC BCDC – DC-DC Charging
Engine-bay ready, smart-alt compatible chargers with optional MPPT.
Victron Orion-Tr Smart
Bluetooth-configurable DC-DC with selectable chemistry & remote on/off.
Enerdrive DC2DC+ 40A
Dual-input alternator + MPPT solar charger. Lithium ready.
HULK4x4 Chargers & VSR
Cost-effective solutions for simple dual setups & fleet vehicles.
*Features & specs vary by model. We’ll spec the correct gear for your alternator type, battery chemistry and loads. Lithium banks for high surge loads (e.g., winching/large inverters) require appropriate BMS settings and cabling.