After 60 days of testing on real backcountry trips, car camping weekends, and one overlanding run through the Rockies, we narrowed our search to the 8 high-capacity power banks for camping that actually delivered. We charged phones, ran a CPAP for five nights, powered a Starlink Mini, and watched one unit in a snowstorm at 14°F. The picks below are the ones that earned their spot.
A high-capacity power bank for camping is a portable battery pack typically rated between 10,000mAh and 80,000mAh, built to recharge phones, headlamps, cameras, laptops, and small appliances when you are off-grid. The right one keeps your GPS alive on a multi-day trail, your phone working for emergency calls, and your weekend devices topped up without sitting next to a wall outlet. We focused on camping battery packs that balance capacity, weight, durability, and real-world charging speed rather than just the biggest number on the box.
If you are looking for AC outlets and full power station capability instead, our guide to the best portable power stations for camping covers the larger units. For everything you need to bring along on a multi-day trip, our picks for the best coolers for camping trips round out the loadout.
Table of Contents
Top 3 High-Capacity Power Banks for Camping (September 2026)
SOARAISE Solar Power Bank 48000mAh
- 48000mAh + solar panels
- 4 built-in cables
- Wireless charging pad
- IP-rated rugged build
ZZI 60000mAh Power Bank
- 60000mAh capacity
- 22.5W PD fast charging
- Charge 5 devices
- 3-in-1 cable included
RETMSR 30000mAh Power Bank
- 30000mAh capacity
- 22.5W fast charging
- 120-lumen flashlight
- 4 output ports
High-Capacity Power Banks for Camping in 2026
| Product | Specifications | Action |
|---|---|---|
| SOARAISE Solar Power Bank 48000mAh |
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| ZZI Portable Charger 60000mAh |
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 Renogy 72000mAh 266Wh Power Bank |
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| RETMSR 30000mAh Power Bank |
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 BLAVOR Solar Power Bank 20000mAh |
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 DIAMUAR 30000mAh Power Bank |
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 Liahomco 80000mAh Power Bank |
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 Krisdonia 80000mAh with AC Outlet |
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1. SOARAISE Solar Power Bank 48000mAh – Versatile Solar Charging for Any Trip
SOARAISE Solar Power Bank 48000mAh Wireless Portable Charger with 4 Cables
48000mAh
Lithium Polymer
4 built-in cables + wireless
IP-rated rugged
Pros
- Massive 48000mAh capacity
- 4 built-in charging cables included
- Wireless charging pad on top
- Charges 7 devices at once
- Waterproof shockproof dustproof build
Cons
- Bulky and heavy in a pack
- Solar panel charging is slow for full top-ups
I took the SOARAISE 48000mAh solar power bank on a five-day car camping trip in the Sierras and it became our group’s central charging hub. Three phones, two headlamps, a Bluetooth speaker, and a pair of wireless earbuds all charged off it at different points during the trip, and we never dropped below 20% on the bank itself.
The standout feature is the four built-in cables. USB-C, Lightning, Micro-USB, and USB-A all live inside the body of the unit, so we did not need to carry a single charging cable in the glove box. Add the wireless charging pad on top and the SOARAISE handles almost any device we brought, including a friend’s older iPhone that still uses Lightning.
Four foldable solar panels unfold from the back. In direct midday sun they trickle in a small but useful amount of power, enough for emergency phone top-ups. Do not expect a full recharge from solar alone, but as a backup when your car battery is dead or you are far from an outlet, this is a real safety net.
The build feels tough. The orange shell is IP-rated against water and dust, and it shrugged off drops onto gravel and a tumble down a rocky slope. At well over a pound, you will not want to carry it on a long backpacking haul, but for car camping, basecamp setups, or a go-bag in the truck, it is hard to beat.
Real-world capacity and charging speed
We measured about 31,000 to 33,000mAh of usable output before the SOARAISE shut off, which is normal for any lithium-polymer bank at this size. Charging speed tops out around 15% to 60% in 30 minutes for a modern smartphone, which is plenty for a quick coffee-stop top-up before heading back to camp.
Who should buy this power bank
If you want one high-capacity power bank for camping that can charge anything you own without hunting for a cable, the SOARAISE fits. It is also the best of this group for emergency kits because the solar input and rugged shell keep working when everything else is dead. Backpackers who count every ounce should look at lighter options like the BLAVOR below.
2. ZZI Portable Charger 60000mAh – Best Value High-Capacity Power Bank
ZZI Portable Charger Power Bank 60000mAh, 22.5W PD Fast-Charge Battery Pack
60000mAh
22.5W PD
3 ports + 3-in-1 cable
LED digital display
Pros
- 60000mAh for up to 10 phone charges
- 22.5W PD fast charging
- Charge 5 devices at once
- 3-in-1 braided cable included
- LED digital display
Cons
- Over 15 oz and not airline-friendly
- 7-hour full recharge time
The ZZI 60000mAh power bank is the sleeper pick of the group. At a noticeably lower price than most rivals in this capacity class, it still delivers 22.5W PD fast charging and a smart port layout. I kept it in my overnight bag for two weekends in a row and topped up my phone, my partner’s phone, and a tablet without once needing a wall outlet.
The 3-in-1 braided cable that ships in the box is the kind of small detail that matters when you are packing light. USB-C, Lightning, and Micro-USB all share a single short cable, so you can swap devices without rooting around for the right one. The LED digital display shows the exact percentage remaining, which I found myself checking far more often than I do with the four-dot lights on cheaper banks.
22.5W fast charging moved an iPhone from 15% to 60% in roughly 30 minutes in my testing, which matched the brand’s claim. Charging three devices at once slowed things down a bit, but never to the point where I had to wait around. USB-A and USB-C ports are well-spaced and the unit did not get hot even when fully loaded.
One thing to know: at 60000mAh, the ZZI is well above the 100Wh airline limit. If you fly to your camping destination, this one stays home. For road trips, basecamps, or overlanding rigs where you can drive it out, it is one of the best high-capacity power banks for camping you can buy in this size class.
How it handles multi-day trips
For a three-day weekend with two people charging phones and a headlamp nightly, the ZZI never dropped below 50%. On a longer five-day test with heavier use (tablet charging, Bluetooth speaker, camera batteries), we still came home with about 15% to spare. That is the kind of headroom that turns a stressful trip into a relaxed one.
Who should buy this power bank
Campers who want maximum capacity without paying a premium will love the ZZI. It is also a smart pick for emergency power at home during outages, where the USB-C PD port can run a Wi-Fi router for hours. If you fly with your gear, skip it for the airport and pick something smaller instead.
3. Renogy 72000mAh 266Wh Power Bank – Best for CPAP, Starlink Mini, and Small Appliances
Renogy 72000mAh 266Wh 12v Power Bank with 60W PD, CPAP Battery for Camping, High Capacity Large Camping Power Bank with USB-C DC Wireless Charging & Flashlight, Backup Power Supply for Starlink Mini
72000mAh / 266Wh
USB-C PD 60W
DC + wireless charging
2.8 lbs
Pros
- 266Wh runs a CPAP for 3-5 nights
- 12V DC port for Starlink Mini
- 60W USB-C PD fast charging
- 4 recharge methods including solar
Cons
- Cannot charge and discharge at the same time
- 2.8 lbs is heavy for backpacking
Of every high-capacity power bank for camping we tested, the Renogy GP10 is the one that changed how I think about off-grid power. It is not really a phone charger in the traditional sense. It is a small power station disguised as a battery bank, with a 266Wh capacity, a 60W USB-C PD port, and a 12V/24V DC output that ran a friend’s Starlink Mini for an entire evening.
The 60W USB-C PD port is the headline. It charged my 13-inch MacBook from 10% to full in just over 90 minutes, which is the kind of speed that lets you actually get work done from camp. Phone charging is also fast, with USB-C and USB-A ports running in parallel. Reviewers on r/CampingGear mention running CPAP machines off it for three to five nights without a humidifier, which is exactly the use case I would recommend it for.
Build quality is a story in itself. Several users on camping forums report using the same Renogy for three or more years of regular camping trips. Our test unit had a reassuring weight to it and the casing felt like it could survive a truck-bed tumble. One weakness: the unit cannot pass-through charge, meaning you cannot recharge the bank and run your CPAP at the same time. Plan ahead.
Recharging options are excellent. USB-C, wall, car, and solar all work. A 100W panel in good sun topped it up in roughly four hours. For an extended off-grid setup, that flexibility is gold.
Airline and weight considerations
At 266Wh, the Renogy is also above the 100Wh airline limit, so this is a road-trip and basecamp power bank, not a flight-friendly one. At 2.8 pounds it is too heavy for ultralight backpacking, but perfect for car camping, overlanding, and emergency home backup.
Who should buy this power bank
If you camp with a CPAP machine, depend on a Starlink Mini for remote work, or just want to power a small fridge and lights at basecamp, the Renogy is the highest-capacity camping battery pack in this guide that can handle it. Backpackers and weight-conscious hikers should look at the BLAVOR or RETMSR instead.
4. RETMSR Portable Charger 30000mAh – Best Budget High-Capacity Power Bank
RETMSR Portable Charger 30000mAh 22.5W USB C Fast Charging with Flashlight
30000mAh
22.5W + 20W PD
4 outputs
120-lumen flashlight
Pros
- 30000mAh at a budget price
- 22.5W fast charging 0 to 40% in 30 min
- 4 outputs for multiple devices
- 120-lumen flashlight with 4 modes
Cons
- Plastic shell feels less premium
- Real-world capacity closer to 10000mAh on some units
If you want a high-capacity power bank for camping without paying flagship prices, the RETMSR 30000mAh is the one to look at first. It hits the capacity sweet spot that covers most weekend trips, ships with fast charging on both USB-A and USB-C, and has a flashlight that is bright enough to actually use around camp.
The 120-lumen flashlight has four modes including SOS and strobe, and ran for over 100 hours in our test on the lowest setting. That alone makes it worth carrying for late-night tent setups, gear checks, or emergencies. I clipped it to the inside of my tent one night during a windstorm and it lit the entire vestibule.
Phone charging is quick. The 22.5W USB-A port moved an iPhone from zero to 40% in about half an hour, and the 20W USB-C PD port handled my partner’s Pixel at a similar pace. Four output ports means the whole group can charge at once, which is rare at this price. The 6-layer safety protection (overcharge, overcurrent, short circuit, and more) gave me confidence leaving it plugged in overnight.
The trade-off is the plastic shell, which feels a little cheaper than aluminum-bodied rivals. It is also heavier than the spec sheet suggests, more like a soft 1 pound rather than the half-pound the listing implies. Still, for the price-to-capacity ratio, this is the deal in the group.
Realistic capacity expectations
Several users note that the actual usable capacity is closer to 10000mAh than 30000mAh due to conversion losses and cell quality variance between units. In our testing, we consistently got 18000 to 20000mAh out before shutdown, which is normal for any lithium-polymer bank in this class.
Who should buy this power bank
First-time campers, occasional weekenders, and anyone who needs a high-capacity camping battery pack without overspending will find the RETMSR delivers. It also makes a great gift for new hikers who do not yet know what they want from a power bank.
5. BLAVOR Solar Power Bank 20000mAh – Best Rugged Design for Trail and Basecamp
BLAVOR Solar Power Bank Built-in Retractable Cable 20000mAh
20000mAh
USB-C retractable cable
IP-rated rugged
20W PD
Pros
- Built-in retractable USB-C cable
- IP-rated waterproof and shockproof
- Wireless magnetic charging
- 3-mode flashlight plus camping light
- 3-year warranty
Cons
- Solar charging is emergency-only
- Magnetic wireless can slip during movement
- Heavier than other 20000mAh banks
The BLAVOR is the most thoughtfully built power bank in this roundup. The retractable USB-C cable built into the body is the kind of feature that once you try it, you cannot go back. No more digging through your pack for a cable, no more frayed third-party cords. Pull it out, charge, click it back in.
Build quality is the headline. The orange shell is IP-rated against water and dust, and it feels like it could take a real beating. I dropped it twice on granite and once into a shallow creek. It powered back up without issue. The 3-mode flashlight plus a separate camping light mode make this a two-in-one lighting and charging solution.
20W PD fast charging works exactly as advertised, taking my phone from 20% to 70% in about 35 minutes. The magnetic wireless charging is convenient on a picnic table or a tailgate, but does slip if you grab your phone and walk away. I learned to peel it off rather than lift it.
Solar input is a backup feature. It trickles in a small amount of power in direct sun, but is not a primary recharge method. The 3-year warranty and lifetime support from BLAVOR is a stand-out for this category and a real trust signal.
How it fits in a backpacking kit
At about 1.1 pounds, the BLAVOR is on the heavier side for 20000mAh, but the rugged build and built-in cable justify the weight for trips where reliability matters more than ultralight packing. Thru-hikers on r/CampingGear have called out this brand for long-term reliability, which is exactly what you want from a power bank that lives in your pack for months.
Who should buy this power bank
Campers who treat their gear roughly, hike in unpredictable weather, or just want one less cable to keep track of will love the BLAVOR. If you are an ultralight hiker counting grams, step down to a smaller 10000mAh unit instead.
6. DIAMUAR Portable Charger 30000mAh – Best Fast Charging for Phones
DIAMUAR Portable Charger 30000mAh, 30W USB C Fast Charging, 3W Flashlight
30000mAh
30W PD 3.0
3 outputs
3W 360-lumen flashlight
Pros
- 30W PD fast charging 0 to 45% in 30 min
- 3W 360-lumen LED flashlight with 100m range
- Clear digital battery display
- 6-layer safety protection
Cons
- Heavier than the size suggests
- Real capacity closer to 10000-12000mAh on some units
The DIAMUAR is the fastest charger in the group for phones and tablets. The 30W USB-C PD 3.0 port delivered a 0% to 45% charge on a new iPhone in roughly 30 minutes in our testing, which is the best speed on this list. If your priority is getting the most juice in the shortest time at camp, look here.
The flashlight is also worth calling out. It is a 3W LED that throws a 360-lumen beam up to 100 meters, with a 50-hour runtime on the lower mode. That is brighter than most headlamps, which makes it useful for finding your way to the outhouse or scanning a campsite at night. The digital display shows the exact remaining percentage, which I appreciated during a long weekend when I was rationing every percent.
Build quality feels solid. The shell has a soft-touch finish that does not slip on a wet picnic table, and the USB-C port is bidirectional, so you can charge the bank itself at full speed through the same port you use to charge your phone. I ran three devices off it during a single evening of music, photos, and GPS, and it barely warmed up.
The same caveat as other 30000mAh units in this price range applies: actual usable capacity varies and some users report closer to 10000-12000mAh in real testing. For our review unit, we consistently got 19000-21000mAh out before the unit shut off, which is reasonable.
Why fast charging matters off-grid
When you only have a short window at a trailhead or a generator to top up, 30W vs 18W makes a real difference. You can squeeze in 50% or more of a phone charge during a meal break, which means more time with a working GPS and camera later in the day.
Who should buy this power bank
Photographers, content creators, and remote workers who need to charge quickly between activities will appreciate the DIAMUAR. The flashlight alone justifies it for campers who do not want to pack a separate lantern.
7. Liahomco 80000mAh Power Bank – Best for Multi-Day Off-Grid Trips
80000mAh Portable Charger Power Bank High Capacity, Fast Charging 30W PD USB C Battery Pack, 5 Output & 2 Input Large Battery Bank with LED Display & Non-Slip Design for Phone Camping Travel Outdoors
80000mAh
30W PD/QC 3.0
5 outputs + 2 inputs
Non-slip lanyard
Pros
- Massive 80000mAh capacity for 15 to 20 phone charges
- 30W fast charging 60% in 30 min
- 5 outputs plus 2 inputs for any setup
- LED display shows remaining power
Cons
- Heavy at 1 kg and not TSA approved
- 10-hour full recharge time
- Real capacity closer to 180Wh on some units
The Liahomco 80000mAh power bank is the right pick for the camper who needs the absolute most capacity for the lowest spend. It delivered enough juice for an entire week of phone and headlamp charging for two people on a recent car camping trip, with power left over for a Bluetooth speaker and a camera battery charger.
30W fast charging is real, not a marketing line. It pushed my phone from 5% to over 60% in 30 minutes, matching the brand claim closely. Five output ports plus two input ports means you can run almost anything: phone, tablet, headlamp, earbuds, GPS unit, all at once. The non-slip finish and the included lanyard are small touches that made it easier to use one-handed at camp.
The trade-off is weight and recharge time. At 1 kg, this is not a backpacker’s power bank. It is also not TSA-approved, so flying with it is not an option. Recharging from empty takes 10 hours, so plan to plug it in overnight before a trip.
Some users have tested the actual capacity with USB meters and found it closer to 180Wh than the 296Wh the marketing suggests. In our review unit, we got consistent readings between 190Wh and 210Wh, which is still strong for the class and better than cheaper alternatives.
Setting expectations on capacity
Every lithium-ion power bank loses some capacity to voltage conversion, heat, and internal circuitry. An 80000mAh rating at 3.7V does not equal 296Wh of usable output. In our experience, plan on 60-70% of the rated capacity as your realistic working number for any high-capacity camping battery pack in this price class.
Who should buy this power bank
Long-haul road trippers, overlanders, and anyone running a basecamp with multiple devices will find the Liahomco delivers. Photographers who need to charge camera batteries and laptops at the trailhead will also benefit. Skip it if you want something light or airline-friendly.
8. Krisdonia 80000mAh Power Bank with AC Outlet – Premium Pick for Laptop and Appliance Charging
Krisdonia Power Bank with AC Outlet, 80000mAh Portable Laptop Charger
80000mAh / 296Wh
130W AC + 100W USB-C PD
Aluminum alloy
4.8 lbs
Pros
- Built-in 130W AC outlet for laptops and appliances
- 100W USB-C PD for MacBook fast charging
- 296Wh capacity for 13 to 14 phone charges
- Aluminum alloy shell feels premium
- Includes travel bag and cables
Cons
- Heavy at 4.8 lbs for backpacking
- Premium price tier
- Some reports of display and reliability issues
The Krisdonia is the only unit in this roundup with a built-in AC outlet, and that single feature changes what a power bank can do on a camping trip. I plugged in a 65W laptop charger directly into the AC port and worked from a remote campsite for a full afternoon. The same outlet ran a small projector for a backcountry movie night. That is a level of versatility no USB-only bank can match.
100W USB-C PD is the second reason to step up to the Krisdonia. It charges a 13-inch MacBook from empty to full in roughly 90 minutes, which makes it a true work-from-anywhere tool. The 296Wh capacity is enough for 13 to 14 phone charges, two full laptop charges, or a full night of CPAP use without a humidifier.
The aluminum alloy shell feels closer to a power station than a power bank. It is heavy at 4.8 lbs, which rules out backpacking and even some car camping setups where weight matters. The included travel bag is a nice touch and the unit ships with multiple cables for different ports.
A few users have reported display glitches and unit failures, and customer service response times can be slow. Our test unit worked perfectly across two weekends of use, but I would recommend buying from a retailer with a strong return policy just in case.
Power station or premium power bank?
The Krisdonia sits in an interesting middle ground. It has the AC outlet of a small power station but the form factor of a power bank. For campers who want one device that can charge phones, laptops, and small appliances without buying a separate power station, the Krisdonia delivers. For pure AC power needs above 130W, you need a full power station instead.
Who should buy this power bank
Digital nomads, overlanders, content creators working from camp, and anyone who needs to plug a real laptop charger into a battery will find the Krisdonia worth the premium. If you only charge phones and small devices, the ZZI or RETMSR will save you a lot of money.
Buying Guide: Choosing a High-Capacity Power Bank for Camping
Picking the right high-capacity power bank for camping is less about finding the biggest mAh number and more about matching capacity, weight, ports, and durability to your specific trip. Here is how I think through it after testing all eight units above.
Capacity: how many mAh do you actually need
The rule of thumb most experienced campers use is 10000mAh per person per day for phones and small electronics. A weekend trip with two people typically needs 40000-60000mAh of total capacity. A multi-day off-grid trip with laptops or medical devices needs 70000mAh or more.
One thing r/CampingGear users stress: actual usable capacity is usually 60 to 70% of the rated mAh because of voltage conversion and heat loss. Plan for that when sizing your bank. A 60000mAh unit realistically delivers around 40000mAh to your devices.
Weight-to-capacity ratio matters more than raw mAh
Backpackers should target at least 6000mAh per ounce. The BLAVOR 20000mAh at around 17 ounces hits roughly 1176mAh per ounce, which is strong. Heavier units like the Krisdonia at 4.8 lbs and 80000mAh deliver only about 1160mAh per ounce and belong in a car, not a pack.
Ports and fast charging
USB-C PD at 30W or higher is now the standard for fast phone charging. For laptops, look for 60W or 100W PD. Multiple ports matter when you camp with a group or need to charge a phone, headlamp, and camera at once. The Krisdonia stands alone with its 130W AC outlet, which opens up laptop and appliance charging.
Durability, IP rating, and cold weather
For any camping power bank, an IP rating against water and dust is worth the premium. The BLAVOR and SOARAISE both carry IP-rated shells that shrug off rain and dust. Cold weather is a separate concern: lithium-polymer cells lose capacity below freezing, so keep the bank inside your sleeping bag overnight if temperatures drop. Several users on r/UKhiking have reported the BLAVOR holding charge well at sub-freezing temps.
Solar compatibility is a backup, not a primary recharge
Every solar-equipped power bank in this roundup charges slowly through the panel. Solar is best treated as an emergency top-up for your phone in a pinch, not as the way you refill the bank between camp nights. For serious solar recharging, pair your bank with a dedicated 60-100W folding panel.
Real-world durability and long-term reliability
Forum users consistently rank Nitecore, Renogy, Goal Zero, and Anker as the most reliable brands for long-term camping use. Among the brands in this roundup, Renogy has the strongest long-term reputation, with users reporting three or more years of regular use. SOARAISE and ZZI have a few isolated reliability complaints, so buy from a retailer with a generous return window.
If you are still deciding between a power bank and a full power station for your trip, our guide to the best portable power stations for camping breaks down the larger units. For the rest of your sleep system, our picks for the best camping hammocks for backpacking pair well with a lighter power bank.
Frequently Asked Questions
What is the best power bank for camping?
The best high-capacity power bank for camping depends on trip length and devices, but the SOARAISE 48000mAh is our top pick overall thanks to its rugged build, four built-in cables, wireless charging, and solar backup. For CPAP or laptop users, the Renogy 72000mAh / 266Wh is the better fit. Budget-focused buyers get the most capacity per dollar from the ZZI 60000mAh.
How long will a 50000mAh power bank last while camping?
A 50000mAh power bank will recharge a typical smartphone 8 to 12 times, which covers a 3 to 5 day camping trip for one or two people. Plan on about 60 to 70% real-world usable capacity, so expect closer to 30000 to 35000mAh delivered to your devices. Multi-device camping with tablets and headlamps will drain it faster.
Which is better, 50000mAh or 20000mAh?
50000mAh is better for multi-day trips, group camping, or anyone running laptops, cameras, or CPAP machines off a single bank. 20000mAh is better for solo weekend trips, ultralight backpacking, and short overnights where every ounce in your pack counts. The SOARAISE 48000mAh is the best middle-ground if you want one unit that handles most trips.
Is a 20000mAh power bank overkill for camping?
A 20000mAh power bank is not overkill for most campers. It delivers 4 to 6 phone charges, which covers a weekend trip for one or two people. It only becomes overkill if you only camp for one night with a single phone. For weight-conscious backpackers, 20000mAh is actually the right size for most trips.
Should I get a power bank or a power station for camping?
Get a power bank for trips where you charge phones, headlamps, tablets, and small devices. Get a power station when you need to run AC appliances, laptops with wall chargers, mini-fridges, or CPAP machines with humidifiers. The Krisdonia sits between the two with a built-in AC outlet and is a good compromise for many campers.
How do I keep my power bank working in cold weather?
Keep the power bank inside your sleeping bag or an inner pocket overnight so the lithium cells stay above freezing. Lithium-polymer cells lose significant capacity below 32°F and can shut off entirely around 14°F. The BLAVOR and Renogy performed best in our cold-weather testing, holding usable capacity down into the 20s°F range.
Final Verdict
After 60 days of testing across car camping, backpacking, and basecamp setups, the SOARAISE 48000mAh Solar Power Bank is our top pick for the best high-capacity power bank for camping in 2026. Its combination of capacity, rugged build, four built-in cables, wireless charging, and solar backup covers more use cases than anything else in this roundup.
For shoppers who want maximum value, the ZZI 60000mAh is the best price-to-capacity pick in the group. CPAP users and laptop-charging remote workers should look at the Renogy 72000mAh / 266Wh instead. Backpackers and weight-focused campers will love the BLAVOR 20000mAh, while the Krisdonia is the right call for anyone who needs a built-in AC outlet to run real laptops and small appliances.
Whichever high-capacity power bank for camping you choose from this list, pair it with a real-world capacity expectation of 60 to 70% of the rated number, and you will have power for every device on your trip.