I bought my first van power station in 2018 with a rough idea of what I needed and almost no framework for evaluating what I was looking at. I looked at watt-hours, assumed bigger was better, and bought accordingly.
Eight years later, I’d make the decision differently. Not because the station was a bad choice — it was a good one for its era — but because I now understand the decision differently than I did then.
Three things I wish I had understood in 2018:
1. Charging Speed Matters as Much as Capacity#
This is the thing that took me years to fully understand, even while experiencing it.
I had a 1,400Wh station. On the days when I needed it most — after three cloudy days wiped out my solar, after a long stationary week — I needed to recover it quickly. And it was slow. A three-hour coffee shop session recovered maybe 600–700Wh. Good, but not full. Not what I needed.
A modern station with 1,200W+ AC input recovers 1,000Wh+ in that same three hours. The outlet window is the same. The recovery is almost double.
What to do: Before you buy, find the AC charging input spec on the product page. It’s usually listed in watts. Look for 1,000W or higher at the 1kWh capacity range. Slower than that, and short outlet windows will consistently underperform your expectations.
2. Portable Beats Fixed When Things Go Wrong#
I almost installed a fixed lithium system at year two. I was convinced it was the “real” solution — proper van life, serious build, done right.
What stopped me was thinking through what happens when things go wrong. Three times in eight years, I’ve picked up the power station and carried it to a coffee shop, a hotel lobby, or a laundromat to charge it. Each time, that portability solved a problem that would have required a different — harder — solution with a fixed system.
Your van’s electrical system will have issues over time. A portable station is not part of that system. You can disconnect it, charge it externally, and keep your critical loads running while you fix the underlying problem.
What to do: Unless your daily load genuinely requires a fixed system — sustained loads over 1,500Wh daily, serious solar harvest requirements, specific integration needs — start portable. You can always build a fixed system later with real data. You cannot easily undo a fixed install that turned out to be bigger or more complicated than you needed.
3. Get More Solar Than You Think You Need#
I ran 300W of solar for six years because that’s what fit my budget and roof space in 2018. It was adequate most of the time. In Colorado winters, Pacific Northwest fall, and extended overcast stretches, it was not adequate, and I knew it.
Modern slim panels pack significantly more wattage into the same physical footprint than 2018 panels did. Three panels in the same roof area that held 300W in 2018 can hold 500–600W today. The price per watt has also come down.
If you’re planning a solar array, don’t optimize for the average sunny day. Plan for the worst week you’ll actually experience — a four-day overcast stretch in a place you’re likely to be. Then add 20% buffer. You’ll spend more upfront and worry less on every other week for the life of the system.
What to do: Calculate your ideal solar array for good conditions, then add at least 30% more if your roof allows it. The incremental cost of going wider while you’re already doing the roof work is small. The cost of retrofitting later — removing panels, re-sealing, re-wiring — is much larger.
The One-Sentence Version#
Buy a fast-charging station, keep it portable, and get more solar than you think you need.
That’s what eight years of full-time van life in a black ProMaster across Colorado, Arizona, Florida, California, and New York has taught me about power. The rest is refinement.
Where to Go From Here#
If you’re still figuring out how much capacity you need, start with How Many Watt-Hours Do I Need in a Van?
If you’re ready to look at specific stations, the Best Fast-Charging Power Stations for Van Life page applies the recovery-first framework to the current field.
If you want to understand what “fast charging” actually means before you trust it as a buying criterion, Power Station Charging Speed Explained breaks down the math.