Van Life Tech: Building a Connected, Off-Grid Camper Van

Van life demands the most from your tech because space, power, and connectivity are all severely constrained. Every piece of electronics needs to justify its power draw, physical space, and weight. Here is the tech stack that works after thousands of miles of real-world testing.

Electrical System Foundation

The electrical system is the foundation of van life tech. Everything depends on reliable, sufficient power. A typical van conversion electrical system includes solar panels, a charge controller, lithium batteries, an inverter, and a battery-to-battery charger (B2B) that charges house batteries while driving.

Batteries: 200-400Ah of LiFePO4 is the sweet spot for most van builds. This provides 2-4 days of moderate use between charges. The Renogy 200Ah Smart LiFePO4 Battery includes built-in Bluetooth monitoring and a reliable BMS (battery management system).

Solar: 400-600W of rooftop panels keeps the batteries topped off in most conditions. Flexible panels are lighter and conform to curved van roofs, but rigid panels are more efficient and durable long-term.

Inverter: A 2000W pure sine wave inverter runs laptops, blenders, coffee grinders, and other AC devices. Pure sine wave is essential — modified sine wave inverters can damage sensitive electronics.

Internet and Connectivity

Starlink Mini: The Starlink Mini is compact enough for van mounting and provides reliable internet in most locations. Many van lifers mount it on a magnetic base that attaches to the roof for easy deployment and storage.

Cellular backup: A hotspot device with external antenna ports provides backup internet when Starlink has no coverage (dense urban areas, deep canyons). The Netgear Nighthawk M6 with an external antenna mounted on the van roof significantly improves cellular reception.

WiFi range extender: Many campgrounds, libraries, and cafes have WiFi that barely reaches the parking lot. A directional WiFi antenna aimed at the access point can pick up signals from hundreds of feet away.

Climate Control

Diesel heater: A Chinese diesel heater (Webasto/Espar clones) runs on the van's fuel tank and provides reliable heat in all temperatures. It draws minimal electricity (about 1A) and uses less than half a liter of diesel per hour.

12V fan: A MaxxFan or similar roof-mounted fan provides ventilation and cooling. In dry climates, a fan alone keeps the van comfortable up to about 85°F. Above that, you need shade and/or a portable evaporative cooler.

Monitoring and Safety

Battery monitor: A Victron BMV-712 or similar coulomb-counting battery monitor shows state of charge, power draw, and estimated time remaining. This is essential for managing your power budget.

CO detector and smoke alarm: Non-negotiable safety items in a small enclosed space with potential for both gas and electrical fires. Hardwire them to your house battery so they never rely on disposable batteries.

GPS tracker: A discreet GPS tracker provides peace of mind against theft. Some also include geofencing alerts — if the van moves outside a defined area, you get a notification.

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