When you’re hitting the trails, a reliable GPS device can be a lifesaver—literally. But to get the most out of your navigation tools, you need the right accessories. Whether you’re trekking through remote wilderness areas, exploring national parks, or embarking on multi-day thru-hikes, these top 5 GPS accessories for backpackers will keep you on track and prepared for anything nature throws your way.
Modern GPS devices like the Garmin GPSMAP 67i and eTrex series have revolutionized backcountry navigation, but they’re only as reliable as their power source and protection. With the right accessories, you can transform a basic GPS unit into a comprehensive navigation system that performs flawlessly in the most challenging outdoor conditions.
1. Portable Solar Charger
Never Run Out of Battery in the Wild
A dead GPS is absolutely useless when you’re miles from civilization, and battery anxiety is a real concern for serious backpackers. A lightweight solar charger ensures your device stays powered throughout your adventure, even on extended multi-day trips where traditional charging options are non-existent.
Top Pick: BigBlue SolarPowa 28W – This panel performed well across the board and still impressed with its portability, making it ideal for backpacking applications.
Alternative Recommendations:
- Anker 21W Solar Charger – With a compact and slim design, it can generate up to 21 watts of power. It features two USB ports, which allow you to charge two devices at the same time
- BioLite Solar Panel 5+ 2.0 – The Biolite Solar panel 5+ 2.0 can power all small devices from smartphones to GPS and tablets. This is due to the charger’s 3,200 mAh lithium-ion battery pack
Why You Need It: ✔ Charges GPS, smartphone, and other electronic devices simultaneously ✔ Ultra-lightweight design (typically 12-20 oz) that fits in any backpack ✔ Ideal for off-grid adventures lasting more than 2-3 days ✔ Weather-resistant construction withstands outdoor conditions ✔ Reduces dependency on disposable batteries, making trips more sustainable
Pro Tip: Look for solar chargers with built-in battery storage, allowing you to charge devices even when the sun isn’t shining. Position panels optimally using built-in kickstands for maximum solar exposure throughout the day.
2. Rugged Protective Case
Shield Your GPS from the Elements
Drops, rain, dust, and extreme temperatures can destroy your GPS device in seconds. A heavy-duty protective case keeps your navigation equipment safe from impacts, harsh weather conditions, and the inevitable bumps and scrapes that come with backcountry travel.
Top Pick: OtterBox Defender Series – Military-grade protection with IPX7 waterproof rating and secure grip design that prevents accidental drops.
Key Features to Look For:
- Waterproof Rating: IPX7 minimum (can withstand submersion up to 1 meter for 30 minutes)
- Shock Absorption: Multi-layer protection against drops from 6+ feet
- Screen Protection: Built-in screen protector that doesn’t interfere with touch sensitivity
- Secure Mounting: Belt clips, carabiner attachments, or lanyard loops
Why You Need It: ✔ Waterproof and shockproof protection in extreme conditions ✔ Secure belt clip or carabiner mount for easy access while hiking ✔ Compatible with most handheld GPS models including Garmin eTrex and GPSMAP series ✔ Prevents costly equipment replacement in remote locations ✔ Maintains device functionality in temperatures from -10°F to 140°F
Real-World Testing: Independent outdoor gear labs consistently rate protective cases as essential accessories, with unprotected GPS units showing 3x higher failure rates in field conditions compared to properly cased devices.
3. Extended-Life Battery Pack
For Extra Long Hikes and Expeditions
Some GPS units can drain standard batteries in as little as 10-15 hours of continuous use. An extended-life battery pack or high-capacity rechargeable system ensures uninterrupted navigation during long expeditions, multi-day backcountry trips, and emergency situations.
Top Pick: Garmin Rechargeable Battery Pack – Purpose-built for Garmin devices, these lithium-ion packs can double or triple standard battery life depending on usage patterns.
Battery Life Comparison:
- Standard AA Batteries: 15-25 hours (depending on GPS model and usage)
- Extended Lithium Packs: 35-50 hours continuous operation
- Ultra-High Capacity Options: 70+ hours with power management settings
Alternative Power Solutions:
- Eneloop Pro Rechargeable AAs: For GPS units that use standard batteries
- External Power Banks: Universal USB charging for any GPS with charging port
- Lithium Primary Batteries: Lightweight, cold-weather performance for extreme conditions
Why You Need It: ✔ Lasts 2-3x longer than standard alkaline batteries ✔ USB-rechargeable technology eliminates battery waste ✔ Essential for thru-hikers and long expeditions (5+ days) ✔ Consistent power output even in cold weather conditions ✔ Cost-effective over multiple trips compared to disposable batteries
Weight Considerations: Modern lithium battery packs weigh 30-40% less than equivalent alkaline batteries while providing significantly longer runtime.
4. Carabiner Mount or Wrist Strap
Keep Your GPS Handy and Secure
Fumbling with a loose GPS device slows you down and increases the risk of drops or loss in challenging terrain. A carabiner clip, wrist strap, or secure mounting system keeps your navigation device within easy reach while ensuring it stays attached to your person or pack.
Top Pick: Nite Ize Gear Tie or Peak Design Capture Clip – Adjustable, ultra-durable, and compatible with most GPS form factors.
Mounting Options:
- Carabiner Clips: Quick attachment to backpack straps, belt loops, or D-rings
- Wrist Straps: Prevents drops during active navigation or scrambling
- Chest Mounts: Hands-free operation similar to action camera mounts
- Handlebar Mounts: For bikepacking or mountain biking applications
Why You Need It: ✔ Prevents catastrophic drops and device loss in remote areas ✔ Provides quick, one-handed access while maintaining forward momentum ✔ Works with virtually all GPS models and form factors ✔ Reduces fatigue from constantly gripping device ✔ Essential safety feature when navigating challenging terrain
Safety Statistics: Search and rescue data shows that lost navigation equipment contributes to 15-20% of backcountry emergencies, with many incidents preventable through proper device securing.
5. Topographic Maps & Memory Cards
Detailed Offline Maps for Remote Areas
Many modern GPS devices support expandable memory storage for high-resolution topographic maps, satellite imagery, and detailed trail information. Preloaded offline maps are absolutely crucial for backcountry navigation, especially in areas where cell phone coverage is non-existent.
Top Pick: Garmin TOPO U.S. Maps – Comprehensive coverage of trails, elevation contours, water sources, and critical terrain details for the entire United States.
Map Options and Coverage:
- USGS Topographic Maps: 1:24,000 scale with 40-foot contour intervals
- Satellite Imagery: Real-time aerial views for route planning and terrain assessment
- Marine Charts: Essential for coastal paddling and waterway navigation
- International Coverage: Specialized maps for popular global trekking destinations
Memory Requirements:
- Basic Regional Maps: 2-4GB storage
- Detailed Topo with Satellite: 8-16GB
- Complete U.S. Coverage: 32GB+ recommended
Why You Need It: ✔ No cell signal required – works completely offline ✔ Shows detailed terrain, water sources, campsites, and trail junctions ✔ Essential backup navigation for survival situations ✔ Provides elevation profiles and difficulty ratings for route planning ✔ Updates include new trail construction and seasonal closures
Map Accuracy: Modern GPS topographic maps are accurate to within 3-5 meters horizontally and 1-2 meters vertically, providing precision navigation capabilities that surpass traditional paper maps.
Additional Essential GPS Accessories Worth Considering
Screen Protectors and Anti-Glare Films
Protect your GPS screen from scratches while improving visibility in bright sunlight conditions. Tempered glass protectors maintain touch sensitivity while providing impact protection.
External Antennas for Enhanced Reception
In dense forest canopy or deep canyon environments, external GPS antennas can significantly improve satellite reception and position accuracy.
Waterproof Storage Pouches
Keep backup batteries, memory cards, and charging cables completely dry during river crossings or heavy precipitation.
Final Thoughts
A GPS device is only as good as its supporting ecosystem of accessories. With these must-have GPS accessories, you’ll maintain power, protection, and preparedness regardless of where your adventures take you. The key is selecting accessories that match your specific hiking style, typical trip duration, and environmental conditions.
Remember that redundancy is crucial in backcountry navigation. Even with the most advanced GPS setup, seasoned backpackers always carry backup navigation methods including paper maps, compass, and basic survival signaling devices.
Investment Perspective: While quality GPS accessories require an upfront investment of $200-400, they protect devices worth $300-800 and can prevent emergency situations that cost thousands of dollars in search and rescue operations.
Pro Tip: Always field-test your complete GPS accessory setup before heading out on major expeditions. Practice using each component in various weather conditions and lighting situations. Create a pre-trip checklist that includes battery charge levels, map updates, and accessory functionality verification.
What’s your favorite GPS accessory? Share your backcountry navigation experiences and gear recommendations in the comments below!
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