
What You’ll Learn: From Core Theory to Complete System
The Foundations
- Grasp the common terms and core principles of DC power so you're never confused by technical jargon again.
- Learn the important calculations for voltage, resistance, and current that form the bedrock of a safe system.
Safety, Prevention & System Design
- Master Cable Sizing & System Protection: Learn the non-negotiable rules for selecting the right cable sizes to prevent voltage drop, ensure safe power delivery, and protect your entire system.
- Fuse Selection & Strategy: Understand how to choose the right fuse every time, making it the weakest link to protect your valuable components.
- System Design Starting Point: Learn the right way to plan your system based on your specific requirements before you spend a single dollar on parts.
- Calculate Your Power Needs: A step-by-step process to accurately determine your power consumption so you build a system that meets your needs without overspending.
Choosing Your Core Components
- The Truth About Batteries: A deep dive into battery chemistry (like LiFePO4), performance, weight, cost, and the critical issue of heat when mounting under the bonnet.
- Battery Charging Explained: Demystify AC charging, DC-DC chargers, and solar so you can charge your batteries effectively from any source.
- Solar Charging Deep Dive: Learn about regulators, panel orientation, and practical strategies to make solar work for you, keeping you off-grid for longer.
Building & Wiring
- Power Distribution Demystified: Tackle the most overlooked part of any 12V system. Learn to wire your distribution hubs for safety and reliability.
- Choosing Small Components: Discover why the small, inexpensive components are just as critical as your expensive batteries and chargers.
- Putting It All Together: Follow along as the course concludes, tying all the concepts together to form a complete, working system.
This Course Is For You If...
- You're a DIY enthusiast ready to build your own 12V system from scratch.
- You're hiring a professional and want to understand their quotes and ensure the job is done correctly.
- You're frustrated by conflicting information on forums and YouTube and want a structured, expert-led program.
- You value safety and reliability above all else for your vehicle and your family.

Meet Your Instructor
This course is taught by Heiner Klarmann, an auto electrician and mechatronics engineer, renowned teacher, and veteran of remote overlanding. As the co-creator of the EGON ‘Game-Changing Simplicity’ product line, Heiner has designed and troubleshooted countless 12V systems. He brings a unique combination of deep technical expertise and practical, real-world experience, breaking down complex topics into easy-to-understand lessons.
A Note on Products:
This course is brand-agnostic and will be valuable no matter what products you decide to use. The principles of safe, reliable 12V power are universal. For those looking for a seamless installation, the concepts taught here pair perfectly with the EGON product ecosystem.