Drew Callahan Drew Callahan · May 20, 2026
“Drew, I’m looking at this Thor Dazzle with what the seller says is a lithium battery setup, but the wiring looks sketchy and I can’t tell if it’s actually safe or just a ticking time bomb.” That’s the conversation I had with a friend last spring, and it’s the exact reason I pull the battery … Read more
Drew Callahan · May 19, 2026
I’ve got the Aterra’s battery box open and I’m staring at what was supposed to be a state-of-the-art lithium setup. The charge controller’s readout doesn’t match the battery voltage. The inverter’s cutting out under load it should handle. The wiring upstream of the main breaker is undersized—I can feel the heat on the insulation. This … Read more
Drew Callahan · May 19, 2026
A shop quote for installing a 12V lithium battery system on a Class B van runs $2,500 to $4,000 in labor alone—sometimes more if they have to rework your existing wiring or jury-rigged solar already in the rig. That number hung in my head the first time I sat down to map out what a … Read more
Drew Callahan · May 18, 2026
I’ve pulled apart enough rigs to know where manufacturers play it cheap, which jobs look harder than they actually are, and which repairs will cripple your wallet if you let them slide. The Hymer Aktiv is a capable little van, but—and this is the mistake I see constantly—most owners run it with the factory 12V … Read more
Drew Callahan · May 18, 2026
Want to know why you’re waking up to a dead battery pack when you thought you had hours of charge left? Odds are solid it’s one of three things: your Beast Mode came from the factory with a charging system that was never properly configured for lithium chemistry, your solar controller is running on default … Read more
Drew Callahan · May 18, 2026
I was somewhere around mile 280 of a late-October push through the Oregon high desert when I realized my Strada’s lead-acid battery was genuinely done. Cloudy skies, temps dropping into the 40s at night, and I was rationing the fridge to 30-minute intervals because the battery couldn’t hold a charge past sunset. That’s when it … Read more
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
