Off-grid power, sized by the math
Engineering-grade reviews of power stations, solar panels, inverters and batteries — no listicle theater, no hype, just the watt-hour math worked out so you buy the right size once.
Start with your use case
What are you powering?
🚐 RV & van life
Boondocking power, roof solar, and van build electrical — sized for your rig.
🏠 Home backup
Hurricane and blackout prep — how many watt-hours your home really needs.
🏕️ Camping & outdoor
CPAP-safe, car camping and overlanding power without overbuying.
🛖 Cabin & tiny home
Full off-grid system design — voltage, batteries, inverters, wiring.
🧮 New here? Try our free Household Power Usage Calculator — find your daily kWh in 2 minutes, then read how we research.
Browse by category
How we pick — every product, same four tests
LiFePO4 or nothing
3,000+ cycle chemistry only. Anything else is obsolete in 2026.
Real charge specs
Manufacturer claims labeled as claims — cross-checked against independent testers.
Solar input ceilings
The spec that kills more boondock dreams than any other. We lead with it.
Port math per use case
A 30A trailer needs different ports than a van build. We check both.
⚡ Hurricane season is coming
Don’t wait for the forecast cone — is your fridge covered for 48 hours without grid power? Our home backup guides walk you through the math before the rush.
Latest guides & reviews
Our first cornerstone guide — Best Portable Power Station for RV Living — publishes this week, with home backup and solar sizing guides following through hurricane season. Start with the use-case hubs above or the power usage calculator.
- Wildfire Power Outages: Backup Power Buyer’s Guide (2026)
- The 2026 Hurricane Season Power Prep Buyer’s Guide
- Off-Grid System Underperforming: Diagnosis Steps (2026)
- Off-Grid Winter Power: Cold Weather Battery Tips (2026)
- Off-Grid Cabin Power Setup Walkthrough (2026)
- Tiny Home Power System: Step-by-Step Build (2026)
Quick answers
What size power station do I need?
Add up your daily loads in watt-hours (a 12V fridge ≈ 1,200 Wh/day, lights ≈ 60 Wh, CPAP ≈ 240 Wh/night), multiply by your days off-grid, then subtract what solar puts back. Our power usage calculator does this math for you.
Is LiFePO4 worth it over lithium-ion?
Yes, decisively. LiFePO4 lasts 4–6× longer (3,000+ cycles vs ~500), handles heat better, and carries no thermal-runaway risk. Every product we recommend is LiFePO4.
Can a power station run an RV air conditioner?
For short bursts, the 3,000W+ class can. For continuous cooling you need 4,000+ Wh of capacity and even then expect 4–6 hours. If all-day AC is the goal, you want a dedicated battery bank and inverter, not a portable unit.
Battery power station or gas generator?
Battery wins on noise, indoor safety, and zero fuel storage; gas wins on long multi-day outages and upfront cost per watt. For most homes the answer is battery-first with gas as extended backup — our comparison guides run the real numbers.
No hands-on theater. We build every recommendation from manufacturer specs, independent lab tests, and verified owner reports — then we show our math. When we don’t know something, we say so. How we research →