Load audit
Fridge, lighting, water pump, inverter, charging and comms are added up in amp-hours per day before any battery is chosen.
Service 05 · Mbombela (Nelspruit)
12V battery systems
Venture 4x4 specifies and installs selected auxiliary battery, charging, solar and accessory-power systems.
Info
What this service covers
Venture 4x4 specifies and installs selected auxiliary battery, charging, solar and accessory-power systems.
- Auxiliary batteries
- DC charging and solar
- Accessory distribution
- Protection, switching and monitoring
Everything here is supplied and fitted at our workshop in Mbombela — the city many customers still search for as Nelspruit — with customers travelling in from across the Lowveld. See where we are and how to reach us.
Brands and products we fit
Brands we currently supply and fit for 12v battery systems. Exact product availability and vehicle applicability are confirmed per vehicle. See all brands.
Victron
National Luna
Snomaster
Flex Adventures
myCOOLMAN
EcoFlow
Flexopower
Enertec
What we look at before fitment
A 12V system is specified from the loads you actually run and how long you camp without driving, then built with correct cable sizing, protection and monitoring.
Battery type and size
Lithium or AGM, and the usable capacity, follow the load audit, the available mounting space and how the vehicle is used.
Charging path
DC-DC charging, solenoid or solar — modern smart alternators often require a DC-DC charger to charge an auxiliary battery properly.
Solar and shore charging
Fixed or foldable panels and MPPT control are sized for the days you stay in one place, not just for driving days.
Protection and cabling
Cable gauge, fusing at both ends, isolation and secure mounting are non-negotiable parts of the install, not options.
Monitoring and handover
A shunt or monitor is fitted where it makes sense so you can see state of charge, and the system is explained at handover.
Fitted by Venture 4x4
Builds featuring 12v battery systems
Real customer vehicles built in our Nelspruit / Mbombela workshop.
View the full gallery
Land Cruiser 79
King Cruiser — JMACX Coil-Converted Land Cruiser 79
JMACX · Powerbrake · Arwald · Hardkorr · Safari · Ultimate 9
Land Cruiser 79
Bravo Cruiser — ARB & Onca Equipped Land Cruiser 79
ARB · Stedi · Tough Dog · Gobi-X · Snomaster · Pioneer
Land Cruiser 79
Delta Cruiser — Alublack Tray & Canopy Touring 79
Alublack · Quick Pitch · Rhino 4x4 · Onca · Tough Dog · Powerbrake
FAQs
Lithium or AGM?
Lithium gives more usable capacity for the weight and handles deep cycling better; AGM costs less up front. The right answer follows your daily amp-hour use and budget.
Do I need a DC-DC charger?
On most modern vehicles with a smart alternator, yes — a plain solenoid will not fully charge an auxiliary battery. We confirm this for your specific vehicle.
How long will my fridge run?
It depends on fridge size, ambient temperature and usable battery capacity. We calculate the expected runtime from the load audit rather than quoting a generic figure.
Can solar be added later?
Yes, if the system is planned for it. We specify the controller, cabling and Anderson points up front so solar can be added without rewiring.
How long does a dual-battery installation take?
Workshop time depends on the vehicle, the exact products and whether supporting parts are required. We confirm the booking length in writing with the quote before the vehicle comes in.
Next action
Start with your vehicle and how you use it
Tell us what you drive and what you need it to do. We'll come back with what actually fits — not a parts list you have to decode.