Going off-grid means leaving the outlets behind, not the lifeline. A satellite phone or messenger only helps if it has charge, and the same goes for the GPS, the camera and, increasingly, the Starlink Mini riding in the truck. This guide covers how much power satellite gear actually uses, which solar panels and power stations make sense for each kind of trip, and how to size a kit you will carry rather than one that stays in the garage.
How much power does satellite gear really use?
Less than most people think, which is good news for anyone who has been eyeing a 100-pound power station "just in case." Real-world numbers from the gear we sell and use:
- Satellite phone (Iridium 9575 Extreme, IsatPhone 2): a battery of about 10–12 Wh. A full recharge costs roughly 15 Wh from a power bank once you account for losses. Even a small bank refills one a dozen times.
- Satellite messenger (Garmin inReach, Bivy Stick, ZOLEO): 5–8 Wh batteries that last days between charges. Recharging is a rounding error in any power budget.
- Handheld GPS and headlamps: 3–10 Wh each per charge.
- Starlink Mini: about 25–40 W continuous, so 600–1,000 Wh a day if it runs around the clock; far less if you switch it on only to check weather and messages.
- Starlink Standard kit: about 75–100 W, or roughly 2 kWh a day continuous.
- 12 V compressor fridge: 30–60 W average, about 1 kWh a day — usually the load that decides your kit, not the satellite gear.
- Laptop: 30–60 W while working; a full charge is 50–100 Wh.
Add up the devices you will really use, multiply by hours per day, and you have your daily watt-hour budget. For a two-person hiking trip with a sat phone, a messenger, two phones and a headlamp, that budget is under 50 Wh a day. For a basecamp running Starlink Mini and a fridge, it is closer to 1,500 Wh.
Why solar rather than a generator
Gas generators are loud, need fuel you have to carry, cannot run in a tent or a vehicle, and are banned or limited to set hours in many campgrounds and public lands. A folding solar panel paired with a lithium power station is silent, has no exhaust, and keeps working as long as the sun does. Modern LFP (lithium iron phosphate) stations are rated for 3,000 or more full cycles, so a unit bought this season will still be doing its job a decade from now. Solar is also the only option that truly extends a trip: a battery alone is a countdown, a battery plus a panel is a system.
The gear, sorted by trip
Backpacking and multi-day hikes: keep it under two pounds
You are powering a satellite phone or messenger, a phone and a headlamp. Skip the power station entirely. A high-quality power bank such as the Goal Zero Sherpa 100AC (about 95 Wh, with an AC outlet for the odd camera charger) covers a week for two people. Pair it with a small 20–30 W folding panel if you are out longer, and you can recharge the bank during a lunch stop. Bonus: anything under 100 Wh flies in carry-on luggage without airline approval.
Car camping and overlanding: the sweet spot
This is where a mid-size power station earns its place. The EcoFlow RIVER 2 Pro holds 768 Wh, weighs about 17 lb, and recharges from the wall in about 70 minutes. It runs lights, charges every device in camp for a long weekend, and will run a Starlink Mini for close to 20 hours. Add the EcoFlow 110W folding panel and it refills itself while you hike. If a 12 V fridge is coming along, step up to the DELTA 2 Max (2,048 Wh) and the 220W bifacial panel; that combination runs a fridge, Starlink Mini and camp charging indefinitely in decent sun. Our camping and overlanding power guide has the sizing math.
Powering Starlink: match the panel to the draw
Starlink Mini accepts USB-C Power Delivery, so it can run from a bank as well as a station. The PeakDo LinkPower mounts directly to the Mini and adds several hours without cables strewn across camp. For all-day connectivity, a RIVER 2 Pro plus 110W panel is the lightest setup that runs indefinitely; a Standard kit wants a DELTA 2 Max and 220–400 W of solar. Running the Mini on USB-C or DC rather than through the station's AC inverter saves 10–15% of your battery, which matters on a cloudy day. More in our Starlink power guide.
Basecamp, hunting camp and remote work: capacity and expandability
When a truck does the carrying, weight matters less than watt-hours and inverter size. The EcoFlow DELTA Pro (3,600 Wh, 3,600 W output, expandable with extra batteries) runs induction cooking, power tools, a freezer and a satellite terminal at once, and the 400W folding panel can put more than a kilowatt-hour back into it on a clear day. The same unit doubles as home backup between trips — see the home backup guide and storm preparedness guide.
Boats and marine use
Power stations are not waterproof, so on a boat they live below deck or in a dry bag and feed electronics — chartplotter tablets, handheld VHF, phones and a satellite messenger — without touching the house bank. A RIVER 2 Pro is plenty for a small sailboat; a flexible 100 W panel lashed to the bimini keeps it topped up. Details in our boat and marine power guide.
Choosing a solar panel
Wattage is a ceiling, not a promise
A 110 W panel delivers 110 W only at solar noon, pointed straight at the sun, on a clear day. Plan on 4–6 "good hours" a day in summer, so a 110 W panel yields about 400–600 Wh; a 220 W panel about 1 kWh; a 400 W panel 1.5–2 kWh. On an overcast day expect 10–25% of rated output. Size the panel for the worst day you expect, or carry a station big enough to bridge it.
Folding versus rigid versus flexible
Folding panels (EcoFlow's 110W, 220W and 400W) pack flat, set up in a minute and can be angled at the sun — the right choice for camp. Rigid panels are cheaper per watt and belong on a roof rack or a cabin. Flexible panels are light and walkable and suit boat decks and van roofs, at some cost in efficiency and lifespan.
Connectors and charge controllers
Every EcoFlow station has a built-in MPPT charge controller and takes the panel's MC4 or XT60 connection directly — no extra hardware. If you bring a third-party panel, check the station's solar input voltage range before you plug in; too high a voltage is the one mistake that damages a station.
Choosing a power station
- Capacity (Wh): your daily budget times the number of days you want to survive without sun. Two days is a sensible minimum.
- Inverter output (W): must exceed the biggest thing you will plug in. A fridge and laptop need 300 W; an induction cooktop or coffee maker needs 1,800 W; a well pump may need more at start-up.
- Chemistry: LFP cells (RIVER 2 and DELTA 2 series, DELTA Pro) last 3,000+ cycles and tolerate heat better than older lithium-ion packs.
- Charging inputs: wall, solar and 12 V car outlet as a minimum. An alternator charger turns every drive into a full recharge for vehicle-based trips.
- Weight: be honest about who carries it. 17 lb (RIVER 2 Pro) is a one-hand carry; 50 lb (DELTA 2 Max) is a two-hand lift; 99 lb (DELTA Pro) rolls on wheels and stays in the vehicle.
Our off-grid power page has a side-by-side size guide for the four EcoFlow sizes.
Three kits that cover almost everyone
| Kit | What it powers | Gear | Approx. weight |
|---|---|---|---|
| Trail kit | Sat phone or messenger, phones, headlamp, GPS for a week | Sherpa 100AC power bank + 20–30 W folding panel | Under 3 lb |
| Camp kit | Everything above plus lights, cameras, Starlink Mini and laptop | RIVER 2 Pro + 110W folding panel | About 25 lb |
| Basecamp kit | Everything above plus a 12 V fridge and a Starlink Standard kit, or home backup | DELTA 2 Max or DELTA Pro + 220W or 400W panel | 60–120 lb, vehicle-carried |
Field habits that make the gear last
- Charge the station to full before you leave; a wall outlet is faster than any panel.
- Angle the panel at the sun and re-aim it once or twice a day. A 20-degree error costs more than dirt does.
- Wipe dust and pollen off the panel each morning — it is a five-percent difference in the desert.
- Keep stations out of direct sun and off hot truck beds; heat, not cold, shortens battery life.
- Carry the specific cables your satellite devices need. A sat phone's charging cable is not the same as a phone's, and camp is the wrong place to discover that.
- Store LFP stations at 60–80% between trips and top up every three months.
Flying with power banks and stations
Batteries up to 100 Wh are allowed in carry-on luggage. Between 101 and 160 Wh you need airline approval. Anything larger — every RIVER and DELTA station — cannot fly as passenger baggage, so it either ships ahead or stays home. Power banks like the Sherpa 100AC are built to the 100 Wh line for this reason.
Putting it together
Work out your daily watt-hours, pick the station that covers two days of it, and add the panel that replaces a day's use in five hours of sun. For satellite phone users that math is easy and the kit is light; for Starlink and fridges it is heavier but still silent, fuel-free and welcome anywhere a generator is not. If you would like a second opinion on your list, the Satmodo team in San Diego sizes these kits every week — call (619) 238-0205 or browse the full off-grid power range, and pair it with a satellite phone or messenger so the charged battery has something worth powering.