Drew Callahan · July 29, 2026
Cable gauge answers two separate questions and most people only ask one. How ampacity and voltage drop differ, why the fuse protects the wire rather than the device, and how close to the battery it has to sit.
Drew Callahan · July 29, 2026
Wiring a lithium house bank straight to the alternator either undercharges it or cooks the alternator. What a DC-DC charger actually does differently, and how to size one.
Drew Callahan · July 29, 2026
The two numbers in a Victron model name are a voltage ceiling and a current ceiling, and they constrain different things. How to size an array without discovering the cold-weather voltage trap the hard way.
Drew Callahan · June 12, 2026
Last summer, I was camped for two weeks in the Arizona desert and my batteries were dying by noon every single day. My old PWM charge controller just couldn’t keep up. That frustration is exactly what pushed me down the…
Drew Callahan · June 10, 2026
Last summer, I nearly killed my RV’s battery bank — and I had absolutely no idea it was happening. That experience is exactly what pushed me toward this Victron BMV-712 battery monitor RV review. I was boondocking for five days…
Drew Callahan · June 9, 2026
Last spring, I was deep into planning a three-month loop through the Southwest in my Class C motorhome. Shore power would be scarce. Generator noise was driving me — and my campsite neighbors — absolutely crazy. So I started seriously…
Drew Callahan · May 17, 2026
You’ll hear two completely different stories about lithium upgrades on a Roadtrek Zion. Dealer service departments will tell you the stock charger and solar controller are fine, that you’re better off sticking with lead-acid because it’s “simpler,” and that any custom electrical work voids your warranty. RV forums and real-world boondockers will tell you the … Read more
Drew Callahan · May 17, 2026
The Pleasure-Way Ascent ships from the factory with a 12V electrical architecture that was adequate—maybe—when these rigs were designed for weekend trips and full-hookup campgrounds. But run one off-grid through a January cold snap, and you’ll discover that the stock lead-acid setup doesn’t have the reserve capacity or charge acceptance to keep your furnace ignition … Read more
Drew Callahan · May 16, 2026
Hi there, I’m Drew Callahan, and after covering over 80,000 miles across North America in three different rigs, I’ve learned a thing or two about RV upgrades. One of the most impactful changes I’ve made was to my Winnebago Travato’s electrical system. If you’re considering a battery and solar upgrade for your Travato, let me … Read more
Drew Callahan · May 16, 2026
I opened the battery compartment on a Thor Sequence I’d picked up at auction and caught a whiff of something sharp—not quite burned plastic, not quite sulfur. The moment my eyes adjusted to the dim light and I saw the crusty white corrosion climbing up those lead-acid terminals, I knew exactly what had happened: the … Read more
