How to Build a Compact DIY Power System in your Camper Van Build

Building your own compact power system for a Ford Transit camper van may seem like a Herculean task, especially if you’ve never undertaken a DIY project of this magnitude. Let’s debunk that myth right away: with the right planning, some basic tools, and a little elbow grease, you can absolutely make this dream a reality! In this guide, we’ll walk you through the process step by step.

A compact and reliable power system is a vital component of any camper van build. It enables you to power your lights, charge your devices, run your cooler or fridge, and much more. Moreover, it gives you self-reliance and the freedom to travel off the beaten path without worrying about access to electricity. Sounds thrilling, right? 

Remember: while building a DIY power system for your Ford Transit camper van is an adventure itself, safety should always be your top priority. If you’re unsure or uncomfortable at any given point, consider seeking professional help.

• Plan: Start with a thorough plan, considering all necessary components, their sizes, and how they’ll all fit into your Ford Transit.
• Skills and Tools: Ensure you have the required skills — or are willing to learn — and the necessary tools for the project.
• Build: Once the plan is in place, get to work. Take your time and don’t rush, as even a small mistake could prove costly.
• Test: Testing your system before hitting the road is absolutely crucial. Make sure everything works as it should.

So, are you ready to power up your Ford Transit camper van with your own DIY power system? Let’s get started.

Understanding your power needs: Assessing your electrical requirements

Considering your intended van usage is essential as it directly impacts the type and capacity of the power system you’ll require. So, let’s dive into it based on the most common Ford Transit camper van purposes: 

Weekend Getaways 

Heading out for weekend trips? Then your energy needs are likely minimal at 200 Amp/hrs worth of Lithium Batteries. You may just be powering a cooler, lights, charging a phone or laptop. For such moderate power usage, a simple yet robust DIY power system can serve pretty well. Nevertheless, take time to assess the duration and frequency of your getaways to estimate accurate power needs. 

Long-term Travel 

Long-term travelers often need more power. From cooking equipment to navigation devices, these luxuries allow you travel without sacrificing comfort. Power system with 400-600 Amp/hrs worth of lithium batteries and better solar input will be necessary in this case. Also, consider how often you’ll be parking in shaded areas or when access to the main grid may be limited. Adjust your power system planning accordingly. 

Full-time Van Living 

For van lifers embracing full-time van living, the power requirements significantly increase to 12 kW hours (1000 Amp/hrs). Aside from powering the same devices and appliances as weekend and long-term travelers, you might desire more power for home-like comforts. Here, you’d likely need a power system that combines solar power, alternative charging sources, and ample battery storage. Assess if you’ll be wild camping or staying in places with electric hook-ups to adjust your power system accordingly. 

Remember, specifying your power needs is crucial to build a compact, efficient, and cost-effective power system in your Ford Transit camper van. Let’s take this journey together and bring your dream camper van build to life!

What components are needed for a DIY power system in a camper van? 

You’re gearing up for an exciting DIY project, bracing yourself to build a compact power system for your Ford Transit camper van. Good on you! Let’s start with a rundown of the components you will need: 

Lithium Batteries

These are the heart of your power system. The size and capacity will depend on your energy needs.

Bus Bar

This is the hub of your energy distribution. It dispenses power to other devices. We recommend something like the Victron Lynx Distributor (Larger Amp Loads) or Blue Sea System Bus Bar (Smaller Amp Loads).

Battery Cables / 12 Volt Welding Wires

These come in a range of gauges and serve as the veins of your power system, conducting electricity from one point to another.

Pure Sine Wave Inverter / Charger

This device converts the DC power from your battery to AC power. Plus, it can charge your batteries when connected to a shore power or generator.

DC to DC Charger

Also known as an alternator charger, this device charges your batteries while your van’s engine is running.

Solar Charge Controller

If you’re planning on utilizing solar power, this device will manage the power coming from your solar panels into the battery bank.

Now that you know what components you need, let’s discuss costs and tools next 

What tools are required to build a DIY power system in a camper van? 

In order to efficiently build a compact DIY power system for your Ford Transit camper van, you would need several tools. We’ve compiled a list for you: 

• Wire Stripper for small to medium wires: This is a necessary tool because it is essential for cutting the insulation off the wires. It allows you to easily connect wires to different parts without risk of a short. Remember, safety first!

• Wire Stripper for large wires: This is an essential tool for safely stripping the insulation off large cables, which are typically used in your van’s power system. It makes a big difference in ensuring a safe and efficient wiring process.

• Wire Cutter and Crimper Combo: This is a handy tool for cutting and bending wire to the right size and shape for your power system build. Highly recommended for its ease of use and the clean, precise cuts it delivers.

• Wire Cutter for large gauge wires: This tool is necessary when you’re setting up your power system, as it will let you cut thick wires to the needed lengths. It’s a small, but crucial part of the process, and it will make your life easier. A high-quality wire cutter is recommended for precision and durability.
• Wire Ferrule Crimper: This is a specific type of pliers used for crimping wire ferrules, which help to shield and secure your wires. It’s incredibly essential when dealing with intricate electrical systems.

• Screw Driver Set: This will be essential for tightening and loosening various parts during the installation of your power system, allowing for secure connections and easy adjustments.

How much does it cost to build a compact DIY power system in a camper van build? 

Setting up a compact DIY power system in your Ford Transit camper van is not only a practical undertaking, but also an affordable one. A well-executed design pairs self-reliance with savings. Let’s break down the primary expense categories: 

Wiring it up: Connecting your power system safely and efficiently

Can I install the DIY power system myself or do I need professional help?

The DIY Approach vs Professional Installation 

You’re absolutely right, the thought of building a DIY power system from scratch can seem a bit daunting, especially if you’re new to this. But here’s the good news: it’s perfectly feasible for you to tackle this project yourself! With the right approach and the right resources, you’ll be amazed at what you can accomplish. 

However, if you’re feeling overwhelmed, don’t sweat it. There’s no shame in calling in the professionals. Yes, you might pay a bit more for the convenience of a done-for-you power system, but for some, the peace of mind and saved labor is worth every penny. If that’s the case for you, we recommend you research and hire a reputed van builder who specializes in Ford Transit conversions. 

Whether you choose to do it yourself or hire a professional, remember the goal: a reliable, efficient power system for your Ford Transit camper van. And we’re here to help you get there, one step at a time. So let’s rev up those engines and get started, shall we?