Finding the best fast-charging portable power station for national park road trips involves balancing charging speed, battery capacity, portability, and versatility. The HOWEASY Portable Power Station stands out for its compact size and solar compatibility, making it ideal for quick top-ups during extended trips. The Anker SOLIX C300 offers fast two-way charging and a robust battery for longer outings. However, choosing the right station depends on your specific needs—whether you prioritize rapid charging, capacity, or lightweight design. Keep reading to see how these options compare and find the perfect fit for your outdoor adventures.
Key Takeaways
- Fast-charging capabilities significantly reduce downtime, especially during multi-day trips in remote areas.
- Battery capacity varies widely, so matching your power needs with size prevents overpaying or running out of juice.
- Portability is key; lighter stations are easier to carry but often have smaller batteries.
- Built-in features like solar compatibility and multiple ports enhance versatility for off-grid use.
- Price differences reflect capacity, build quality, and features; investing more can provide longer-term reliability.
More Details on Our Top Picks
HOWEASY Portable Power Station,120W(240W Peak) Solar Generator,88Wh Lithium Battery Power with 110V AC Outlet/DC/USB/LED Light for Outdoor Camping Trip Hunting Emergency(Solar Panel Optional)
This option stands out for its lightweight design and affordability, making it ideal for casual campers and emergency use. Compared to the Anker SOLIX C300, it offers fewer ports and less capacity, but at a significantly lower price point, which suits those who only need small device charging. Its 88Wh battery supports multiple output ports, including AC, USB-C, QC 3.0, and DC, providing versatile device compatibility. The three recharging modes—AC, solar (panel not included), and car—add convenience for off-grid adventures. However, the limited capacity means it can run devices like laptops or mini fans only for a few hours, and its lower wattage limits powering larger electronics. Still, for quick charges of phones and small gadgets, it delivers reliable performance. Best for budget-conscious users needing portable backup for small devices.
Pros:- Very lightweight at just 2.3 pounds, easy to carry
- Supports simultaneous charging with multiple ports
- Three recharging options for flexibility
Cons:- Limited capacity restricts usage to small devices
- Wattage peak at 240W limits larger electronics
Best for: Casual campers, emergency kit fillers, or light device chargers for short outdoor trips.
Not ideal for: Long-term off-grid living or powering larger appliances like mini-fridges or CPAP machines.
- Wattage:120W
- Battery Capacity:88Wh
- Output Ports:8
- Weight:2.3 pounds
- Cycle Life:>1500 cycles
- Recharging Modes:AC, solar, car
Bottom line: A compact, affordable choice for those who need quick, small device charging on outdoor adventures or emergencies.
2026 Portable Power Station 700W Surge, 230.4Wh LiFePO4 (LFP) Battery, Power Bank 110V/ 350W Pure Sine Wave AC Outlet, Solar Generator Fast Charging for Camping, Emergency, Laptop, RV, Off-Grid Living
This model makes the most sense for users who need to run several devices simultaneously, thanks to its 350W pure sine wave AC outlet and 230.4Wh capacity. Compared with the Anker SOLIX C300, it offers a slightly lower wattage (300W continuous) but boasts the safety and longevity of LiFePO4 batteries, supporting over 3,000 cycles. Its six-port charging system—including USB-C PD 45W, QC 18W, and multiple DC outlets—caters well to tech-heavy users. The rapid recharge feature (from 0 to 80% in under 3 hours) is a big plus for quick turnaround. The main tradeoff is its weight at around 6.9 pounds, which is still portable but less so than smaller units. This power station is ideal for extended camping trips, off-grid applications, or emergencies requiring multiple device support. Best for tech-savvy users needing durable, long-lasting portable power.
Pros:- Supports up to 6 devices simultaneously
- Long-lasting LiFePO4 battery with 3000+ cycles
- Fast recharge from 0 to 80% in less than 3 hours
Cons:- Relatively heavier at nearly 7 pounds
- Lower wattage output compared to some larger units
Best for: Campers, off-grid residents, or emergency preparedness enthusiasts with multiple devices to power.
Not ideal for: Lightweight travelers or those seeking ultra-compact solutions for minimal device charging.
- Wattage:350W
- Battery Capacity:230.4Wh
- Output Ports:6
- Weight:6.9 pounds
- Cycle Life:3000+ cycles
- Recharging Options:AC, car, solar
Bottom line: A reliable, long-lasting power source for users who need multiple device support and durability on extended outdoor or emergency trips.
Anker Portable Power Station SOLIX C300, 288Wh LiFePO4 Battery, 300W (600W Surge) Solar Generator, 140W Two-Way Fast Charging, for Outdoor Camping, Traveling, and Emergencies (Solar Panel Optional)
This pick makes the most sense for frequent travelers or outdoor enthusiasts who want a balance of capacity and rapid charging, thanks to its 288Wh LiFePO4 battery and 140W two-way fast charging. It offers a robust eight-port system, including dual USB-C ports capable of 140W, making it highly versatile for powering multiple devices like laptops, phones, and cameras simultaneously. The pure sine wave inverter ensures safe power for sensitive electronics. Its 6.46-pound weight and compact form factor make it easy to carry, and the 5-year warranty adds peace of mind. Compared with the Daran Power Station, it provides quicker recharge times and more ports but slightly less raw capacity. It’s ideal for demanding outdoor use, travel, or backup power for small appliances. Best for users who need fast, reliable power with quick recharge times.
Pros:- Fast 140W two-way USB-C charging
- Robust 8-port system for multiple devices
- Lightweight and portable at 6.46 pounds
Cons:- Slightly less capacity than some competitors
- Does not include solar panel in the package
Best for: Travelers, outdoor adventurers, or backup power users seeking a portable yet powerful station.
Not ideal for: Heavy-duty power needs like large refrigerators or high-watt appliances.
- Wattage:300W
- Battery Capacity:288Wh
- Output Ports:8
- Weight:6.46 pounds
- Cycle Life:5 years
- Recharging Options:AC, solar, USB-C
Bottom line: A high-capacity, fast-charging power station best suited for tech-heavy travelers and outdoor enthusiasts demanding quick recharges.
Portable Power Station 600W (1200W Surge), 299Wh Small Lightweight Portable Power for Camping & Spring Outdoor Use, Battery Backup Safe for Indoor Blackouts, 2 AC Outlet, 140W USB-C Fast Charging
This model stands out for its impressive 600W continuous output and 299Wh capacity in a remarkably lightweight design at just 6.8 pounds. It supports powering larger devices like mini-fridges, projectors, or CPAP machines, making it suitable for both outdoor use and home backup during blackouts. The two AC outlets and 140W USB-C fast charging provide versatile device support, while the LCD display keeps users informed of power status. Compared with the Daran Power Station, it offers similar wattage but benefits from faster recharge times and more ports, though slightly heavier. Its impact resistance and multiple charging options make it a solid choice for outdoor enthusiasts or those needing reliable backup power with portability. Best for users who want higher wattage support in a portable package.
Pros:- Supports up to 600W continuous power
- Lightweight at 6.8 pounds for portability
- Fast recharge with multiple charging options
Cons:- Limited to devices within 600W power draw
- No solar panel included in the package
Best for: Campers, outdoor enthusiasts, or emergency backup users needing to power larger electronics on the go.
Not ideal for: Ultra-lightweight travelers who prefer minimal gear or those with very limited space.
- Wattage:600W
- Battery Capacity:299Wh
- Output Ports:7
- Weight:6.8 pounds
- Cycle Life:Multiple (not specified)
- Recharging Options:AC, solar, car
Bottom line: A powerful, portable station ideal for those needing higher wattage in a lightweight form for outdoor or emergency use.
DARAN Portable Power Station 600W(1200W Surge) – 288Wh Solar Generator LiFePO4 Battery with AC DC Outlets, 8.3LB Portable Charging Station for Camping, RV, Home, Emergency (Solar Optional)
This model makes the list for its impressive 3500+ cycle LiFePO4 battery and lightweight 8.3-pound frame, making it suitable for long-term outdoor or emergency use. It provides 600W surge and 288Wh capacity, enough to run small appliances like a refrigerator or CPAP machine within the wattage limits. Its fast recharge—up to 80% in just 2 hours via AC—compared to others like the Anker SOLIX C300, which takes longer, is a big advantage. The multiple ports, including dual AC outlets and USB-C PD60W, support diverse device needs. However, it lacks an included solar panel, and its slightly lower capacity might limit longer runs. Overall, it’s an excellent choice for those prioritizing longevity and portability. Best for long-term outdoor use with fewer device demands.
Pros:- Long lifespan with 3500+ cycles
- Lightweight at 8.3 pounds
- Fast recharge in 2 hours via AC
Cons:- Does not include solar panel
- Slightly lower capacity than some competitors
Best for: Outdoor adventurers, emergency responders, or users seeking a durable, long-cycle power backup.
Not ideal for: Users needing higher capacity or faster recharge times for large appliances.
- Wattage:600W
- Battery Capacity:288Wh
- Output Ports:6
- Weight:8.3 pounds
- Cycle Life:3500+
- Recharging Options:AC, car, solar
Bottom line: A durable, long-cycle power station ideal for those who prioritize longevity and portability in emergency or outdoor scenarios.
DaranEner Portable Power Station, 192Wh LiFePO4 Battery Backup w/2 300W (Surge 600W) AC Outlets, 2H Fast Charging, Power Bank for Hurricane Emergency/Home/Outdoor Camping/RVs Use
This compact 192Wh LiFePO4 station excels in portability, weighing only 5.73 lbs and fitting easily into a backpack. It provides a reliable 300W output, enough to power phones, small fans, or laptops, but falls short of larger devices like mini-fridges or high-wattage appliances, unlike the larger capacity EBL 1000W unit. Its LiFePO4 chemistry ensures over 3500 cycles, outlasting typical lithium-ion options. The fast 2-hour recharge makes it ideal for quick turnarounds during outdoor trips or emergencies. Compared to the GRECELL EB300, it offers lighter weight but less capacity, making it perfect for minimalist travelers. However, its 300W limit means high-power devices are out of reach, and solar input maxes at 60W, limiting off-grid recharging. Best suited for solo campers or those needing a lightweight backup for essential electronics, not for high-demand appliances or long off-grid stays.
Pros:- Very lightweight at just 5.73 lbs, easy to carry for outdoor activities
- Long-lasting LiFePO4 battery with over 3500 cycles
- Fast 2-hour recharge via AC outlet
Cons:- Limited to 300W continuous output, unsuitable for high-demand devices
- Solar input maxes at 60W, restricting off-grid recharging speed
- Lower capacity compared to larger units like the Anker SOLIX C300
Best for: Solo outdoor enthusiasts or emergency preppers needing a lightweight, fast-charging power source for small devices
Not ideal for: Users requiring high wattage for appliances like mini-fridges or power tools, due to its limited 300W output
- Capacity:192Wh
- Output Power:300W
- Weight:5.73 lbs
- Recharge Time:2 hours
- Battery Chemistry:LiFePO4
- Max Solar Input:60W
Bottom line: Ideal for lightweight, fast-charging needs for small electronics during short outdoor trips or emergencies.
pangootek Portable Power Station 99Wh 27000mAh Portable Charger Power Bank with Camping Light 22.5W Fast Charging QC 3.0 PD Built in Cables Outdoor Generator for Hiking Fishing Travel
This small 99Wh power bank makes a perfect starter option for beginners or light-use scenarios, offering 7-8 charges for most smartphones. Its built-in handle and 1.5-pound weight make it highly portable and easy to carry on hikes or short trips. Equipped with a fast 22.5W USB-C PD port, it charges devices quickly but cannot power larger electronics like laptops or appliances, unlike the larger Anker SOLIX C300 or GRECELL EB300. Its built-in cables and LED camping light add convenience, though the capacity is quite limited for extended off-grid use. Compared to the EnginStar R300, it’s lighter but offers significantly less power and fewer ports, suitable only for small devices. Its solar recharge option is absent, and the capacity may fall short during longer outages or multi-device use. This pick is best for casual hikers or emergency kit fillers for basic device charging, not for prolonged power needs or high wattage devices.
Pros:- Lightweight at 1.5 pounds, very portable
- Fast charging via PD 22.5W USB-C port
- Built-in handle and camping light for convenience
Cons:- Limited capacity of 99Wh, not suitable for high-power devices
- No solar input option, restricting off-grid recharging
- Low number of output ports compared to larger stations
Best for: Casual outdoor users or emergency kits needing a simple, portable power source for phones and small gadgets
Not ideal for: Those seeking to power laptops, CPAP machines, or multiple devices simultaneously for extended periods
- Capacity:99Wh
- Output Port:22.5W PD USB-C
- Weight:1.5 lbs
- Charging Ports:6
- Built-in Light:Yes
- Recharge Method:AC, USB-C, Micro-USB
Bottom line: Best suited for quick, small device charges during short outdoor activities or as a basic emergency backup.
EnginStar Portable Power Station 300W 296Wh Battery Bank with 110V Pure Sine Wave AC Outlet for Outdoors Camping Hunting and Emergency, 80000mAh Backup Battery Power Supply for CPAP
This 300W 296Wh power station offers a versatile balance with multiple ports, including two 110V pure sine wave AC outlets, making it suitable for a variety of devices including CPAP machines, laptops, and small appliances. Weighing 6.5 pounds, it’s portable yet capable of supporting longer off-grid stays compared to smaller units like the pangootek. Its fast recharge in about 2 hours via AC and multiple recharging options (solar, car) make it appealing for outdoor adventurers and emergency prep. Its safety features with advanced BMS ensure protection against overcharge and short circuits, outperforming lower-end models. Compared to the GRECELL EB300, it offers similar capacity but with more ports and higher wattage support. Its size and weight are manageable for most outdoor users, though not as light as ultracompact options. This model fits users needing dependable, versatile power for longer trips or multiple devices.
Pros:- Supports up to 296Wh capacity, suitable for longer use
- Two pure sine wave AC outlets for sensitive electronics
- Fast 2-hour recharge with multiple options
Cons:- Weighs 6.5 pounds, less portable than smaller units
- Size may be cumbersome for ultralight backpacking
- Relatively higher price point for capacity
Best for: Outdoor enthusiasts or emergency users needing a reliable, multi-device-capable power source with higher capacity
Not ideal for: Lightweight backpackers or minimalists who prioritize portability over capacity and port variety
- Capacity:296Wh
- AC Outlets:2
- Weight:6.5 lbs
- Recharge Time:2 hours
- Battery Chemistry:LiFePO4
- Additional Ports:Multiple USB, DC
Bottom line: This station is ideal for those who need dependable power for multiple devices during longer outdoor stays or emergencies.
EBL Portable Power Station 1000W Solar Generator 999Wh Fast Charging Backup Battery with 5W Wireless Charging & Multiple Ports for Camping, Home Backup, RV & Off-Grid
This 1000W 999Wh solar generator is a serious choice for extended off-grid adventures or emergency backup, supporting appliances like small refrigerators and multiple devices simultaneously. Its large capacity outperforms the smaller units like the GRECELL EB300 or EnginStar R300, offering enough power for hours of continuous use. The 2 AC outlets with pure sine wave output ensure safety for sensitive electronics. Its 8 ports, including wireless charging, provide great versatility. Weighing 21 pounds, it’s portable but less so than lighter options, making it better suited for vehicle use or stationary setups. The fast AC recharge (7-8 hours) and solar compatibility make it flexible for off-grid scenarios, although its size may be a drawback for backpackers. This station is best for users who prioritize capacity and multiple device support over ultra-light portability.
Pros:- High 999Wh capacity supports long-term power needs
- Two pure sine wave AC outlets for sensitive electronics
- Multiple ports including wireless charging for convenience
Cons:- Heavy at 21 pounds, less portable for backpacking
- Recharging takes 7-8 hours via AC, limiting quick turnaround
- Size may be cumbersome for small vehicle or minimalist use
Best for: Emergency preparedness, camping, or RV users needing large capacity and multiple outputs
Not ideal for: Backpackers or those seeking ultra-lightweight gear, due to its weight and size
- Capacity:999Wh
- AC Outlets:2
- Weight:21 lbs
- Recharge Time:7-8 hours
- Battery Chemistry:LiFePO4
- Wireless Charging:Yes
Bottom line: Best suited for those needing large capacity, multiple device support, and extended off-grid power stability.
GRECELL Portable Power Station 300W, 288Wh Lithium Battery, 60W Fast Charging, Up to 300W(Peak 600W) AC Outlets, Solar Generator for Outdoor Camping RVs Home Use
This GRECELL EB300 offers a compelling mix of 288Wh capacity and 300W continuous power, supporting a range of small appliances and sensitive electronics. Its lightweight design at around 6.5 pounds makes it more portable than larger stations like the EnginStar R300 or EB1000, making it a good choice for short trips or backup power. The dual AC outlets with pure sine wave output ensure safe operation for delicate electronics. Its 60W solar input makes it suitable for off-grid recharging, although slower than larger capacity models. Compared to the smaller pangootek unit, it provides more power and more ports, fitting mid-range needs. Its 600W surge supports short-term power peaks but isn’t suitable for high-demand appliances. This is a versatile choice for users who want a good capacity-to-weight ratio for camping or emergency backup.
Pros:- Relatively lightweight at about 6.5 lbs for easy portability
- Supports up to 288Wh capacity with multiple ports
- Fast 60W charging with solar compatibility
Cons:- Limited to 300W continuous power, not for high-demand devices
- Smaller capacity than units like the EB1000 or Anker SOLIX C300
- Recharging via solar is slower, dependent on sunlight conditions
Best for: Outdoor campers or backup users who need more power than ultralight models but want portability
Not ideal for: Heavy-duty users needing to run high wattage appliances or extended off-grid power, due to capacity limits
- Capacity:288Wh
- AC Outlets:2
- Weight:6.5 lbs
- Recharge Method:Solar, AC, Car
- Max Power:300W
- Peak Power:600W
Bottom line: A well-rounded portable station for outdoor use or emergency backup that balances capacity and portability.
Jackery Portable Power Station Explorer 300, 292Wh Backup LiFePO4 Battery, Solar Generator for Outdoors Camping Travel Hunting Blackout (Solar Panel Optional)
The Explorer 300 stands out for its rapid recharging capabilities, taking only 2 hours to reach 80% via wall outlet and USB-C, making it ideal for quick top-ups during outdoor adventures. Compared to the 2026 Portable Power Station 700W, it offers a smaller capacity but benefits from faster recharge times, which matter when you’re on the move. Its 293Wh LiFePO4 battery provides a steady, safe power supply with 2 pure sine wave outlets, perfect for sensitive devices like cameras and laptops. However, the recharge process to 100% can be slow, often taking nearly an hour more than the initial 80%, and it cannot power high-demand devices like a tire inflator at high charge levels. Pros include fast recharge, lightweight design, and safety features. Cons involve slower full charging and limited high-wattage output. Best for users who need reliable, quick recharging in a compact package for varied outdoor devices.
Pros:- Fast 80% recharge in just 2 hours via wall and USB-C
- Lightweight at only 7.1 pounds, easy to carry
- Steady, safe power with pure sine wave outlets
Cons:- Slow to reach 100% charge, nearly an hour longer than initial 80%
- Limited to 300W output, unsuitable for high-demand devices like tire inflators at high charge
Best for: Hikers and campers who value quick, reliable recharging with safety features for multiple devices.
Not ideal for: Users needing to power high-wattage appliances like air compressors or appliances at full capacity for extended periods.
- Battery Capacity:292Wh
- Output Wattage:300W
- Charge Time (wall):2 hours to 80%
- Weight:7.1 pounds
- Ports:2 AC, 1 USB-C PD, 1 USB-A, DC car
- Battery Type:LiFePO4
Bottom line: This pick is best suited for outdoor enthusiasts who need fast, portable, and safe power for multiple smaller devices.
How We Picked
The products were selected based on their charging speed, battery capacity, portability, build quality, and versatility. We prioritized units that support fast charging, especially those with inputs and outputs designed for quick top-ups and device charging. The ranking also considers user-friendliness, durability, and how well each model balances size with power. Models with solar compatibility and multiple ports were favored for their adaptability in remote settings. Ultimately, the top picks reflect a mix of value, performance, and practicality for outdoor road trips in national parks.Factors to Consider When Choosing Best Fast-charging Portable Power Station For National Park Road Trips
Choosing the best fast-charging portable power station for national park trips requires understanding key factors that influence performance and usability. Beyond raw capacity, consider how quickly the station can recharge, how portable it is, and whether it supports solar input for off-grid power. Additional features like multiple ports and rugged build quality can greatly extend usability in remote areas. Making an informed choice involves weighing these elements against your specific trip needs and budget.Charging Speed and Input Power
Fast-charging capabilities are essential for minimizing downtime, especially if you frequently need to recharge the station during a trip. Look for models with high wattage inputs, such as 100W or more, which can replenish the battery quickly via AC or solar. However, keep in mind that some units with rapid input might be larger or heavier, so balance speed with portability. A station that recharges in 2-3 hours can significantly improve your trip flexibility.
Battery Capacity and Run Time
The capacity, expressed in Wh, determines how long your devices can run. For national park trips where power sources are limited, a capacity of at least 200Wh is recommended for basic needs like charging phones, cameras, and small appliances. Larger capacities, around 500Wh or more, support multiple devices and longer use but add weight. Assess your device power consumption and trip duration to find the sweet spot, avoiding overpaying for capacity you’ll never use.
Portability and Size
Portability is critical for outdoor adventures. Lighter and more compact stations are easier to carry on hikes or in cramped vehicle spaces. However, smaller units often have reduced capacity or fewer features. Consider how you’ll transport the station and if it fits comfortably in your backpack or vehicle. The ideal balance delivers enough power without becoming a burden during long hikes or extended camping stays.
Versatility and Features
Additional features like multiple output ports, USB-C, AC outlets, and solar input expand your options for device compatibility and off-grid recharging. Solar compatibility is a game-changer for extended trips, allowing you to replenish power without grid access. Also, rugged design elements like water resistance or shockproof casing can withstand outdoor conditions, but often come at a higher cost. Prioritize features that match your adventure style and power needs.
Price and Value
Prices range considerably based on capacity, features, and brand reputation. Investing more typically yields greater durability, faster charging, and higher capacity, which can be worthwhile for frequent or long-term travelers. Conversely, budget options might suffice for occasional use or short trips but may require tradeoffs in recharging speed or capacity. Evaluate how often you’ll use the station and for what to determine whether to prioritize upfront cost or long-term reliability.
Frequently Asked Questions
How quickly can a portable power station recharge during a trip?
Recharge times depend on the input wattage and battery size. Many models support fast input charging, capable of replenishing 80% of capacity within 2-3 hours using AC power or high-watt solar panels. For off-grid use, solar input is often the slowest method but can be sustained over time, making it ideal for extended trips. Always check the maximum input wattage to gauge how quickly your station can recover between uses.
Is solar charging reliable enough for a multi-day trip?
Solar charging can be very effective if you have sufficient sunlight and a compatible solar panel. It provides a renewable power source that can keep your station topped off, especially in sunny national parks. However, efficiency drops on cloudy days or during overcast weather, so it’s wise to have a backup charging method. Combining solar with fast wall charging ensures your power station remains ready for continuous use.
How do I choose the right capacity for my needs?
Start by listing essential devices and their power consumption. For minimal needs like phones and small gadgets, 200-300Wh may suffice. If you plan to run larger devices or multiple appliances, look towards 500Wh or higher. Consider the length of your trip and whether you’ll have access to grid power or solar recharging. Picking a capacity that balances your needs with manageable weight and size will maximize usability without unnecessary bulk.
Are lightweight power stations less durable or less powerful?
Not necessarily. Many lightweight models use advanced lithium iron phosphate (LiFePO4) batteries that are highly durable and safe. However, they often have smaller capacity or fewer output options, which can limit versatility. Heavier stations tend to pack more capacity and features but at the expense of portability. Choose a model that matches your trip style—if weight is a priority, opt for a compact, lightweight unit with enough capacity for your essential devices.
Should I prioritize fast charging or higher capacity?
Both are important, but your choice depends on your trip’s nature. If you need to quickly top off your power station during brief stops, prioritize fast charging capabilities. Conversely, if your trip involves extended periods away from power sources, a higher capacity unit will better serve your needs. Ideally, find a station that offers a good balance—fast recharge times combined with sufficient capacity to keep your devices running without frequent recharges.
Conclusion
For most outdoor enthusiasts, the ANER SOLIX C300 offers an excellent mix of fast-charging, capacity, and portability, making it the best overall choice. If you’re budget-conscious or need a lightweight option, the pangootek Portable Power Station 99Wh provides essential features at a lower price. For those seeking premium build quality and maximum capacity, the EBL Portable Power Station 1000Wh stands out as a top-tier option. Beginners or casual campers will benefit from simpler models like the Jackery Explorer 300, while adventure travelers requiring rugged durability should consider units with solar input and outdoor-ready design. Your ideal pick hinges on balancing power needs, portability, and budget for your national park road trips.
