Portable power, worked out with real specs

Off-Grid Watts answers practical questions about power stations (runtimes, solar sizing, what they can and can't run) using manufacturer specs and plain math. No fake "hands-on" claims.

Guides

• Best Power Station for Van Life Under $500

  Spec-based picks for the best portable power station for van life under $500: what you can realistically run, which specs matter, and which models to skip.

• Can a Power Station Charge an E-Bike? (How Many Charges + Safe Setup)

  How to tell if a portable power station can charge your e-bike battery, how many charges to expect, the formula, and conservative safety basics for camping trips.

• Can a Portable Power Station Run a Space Heater? (Honest Answer and Safer Alternatives)

  The wattage math on running a space heater from a portable power station, why it drains so fast, conservative safety basics, and why 12V heated blankets are a better fit.

• Can You Bring a Portable Power Station on a Plane? (FAA Watt-Hour Rules Explained)

  What the FAA's 100Wh and 160Wh lithium battery limits mean for portable power stations, how to read a label, and what to do instead for fly-in camping trips.

• How to Charge a Power Station While Driving (12V Socket vs Alternator Charger)

  How car charging a portable power station works, how long it takes from a 12V socket, when an alternator charger makes sense, and conservative wiring and battery safety tips.

• How Long Will a Power Station Run a CPAP? (Math, Examples, and Safe Setup)

  A conservative, spec-based guide to estimating CPAP runtime on a portable power station, with the formula, a worked AirSense 11 example, and why humidifier settings matter most.

• Jackery vs EcoFlow vs Goal Zero for Car Camping (Spec Comparison)

  A spec-by-spec comparison of the Jackery Explorer 500 v2, EcoFlow RIVER 3 Plus, and Goal Zero Yeti 500 for car camping, from manufacturer data with no lab testing.

• LiFePO4 vs NMC Power Stations: Which Battery Chemistry Should You Buy?

  A spec-based comparison of LiFePO4 and NMC portable power stations: cycle life, weight, temperature ranges, and when an older NMC unit still makes sense.

• How Long Will a Power Station Run a 12V Camping Fridge? (Runtime Table + Calculator)

  A plain-math guide to 12V fridge runtime on a portable power station, with a formula, worked example, and a runtime table for 300Wh to 2000Wh.

• What Size Solar Panel Do I Need to Recharge a 500Wh Power Station in One Day?

  The math for sizing a solar panel to refill a 500Wh portable power station in one day: peak sun hours, real-world losses, connectors, and spec-based pairings.