Keeping your vehicle powered reliably is one of the most overlooked parts of overlanding. In this post, I break down why a high-output alternator and the Big 3 Upgrade are two of the smartest electrical mods you can make — and how they can prevent failures, support heavy electrical loads, and keep your rig adventure-ready.

In this article, I’ll walk through the three most common ways to power a 12V fridge, from the simplest to the most advanced. I’ll also cover some of the pros and cons of each setup so you can decide what works best for your style of adventure.