How much solar do I need for boondocking?

A general rule for boondocking is 200W of solar for every 100Ah of lithium battery capacity to ensure a full recharge during daylight hours.

Rigid vs Flexible RV solar panels?

Rigid panels are better for longevity and heat dissipation. Flexible panels are only recommended for curved roofs where rigid mounting is impossible.

How to Choose the Best Solar Panels for RV Boondocking

True boondocking—staying off-grid without a shore power hookup—requires a robust solar strategy. You aren’t just charging a phone; you’re running a water pump, fans, lights, and perhaps a starlink or fridge. This guide decodes the best panel types and array sizes to keep your batteries full while parked in the middle of nowhere.

🚐 Boondocking Logic

Rig-Specific Solar Sizing

The “right” amount of solar depends on your rig’s roof real estate and your battery capacity. For boondocking, the goal is to fully recharge your batteries by 2:00 PM every day.

Rig Type	Typical Battery	Recommended Solar
Van / Truck Camper	100Ah – 200Ah	200W – 400W
Small Travel Trailer	200Ah – 400Ah	400W – 600W
Large 5th Wheel / Class A	600Ah+	800W – 1,200W+

⚖️ Rigid vs. Flexible

Which Panel Style is Best for Your Roof?

Rigid Glass Panels are the standard for boondocking. They last 25 years, handle heat better because of the air gap underneath, and are significantly cheaper per watt.

Flexible Panels are great for curved roofs or lightweight teardrops, but they have a shorter lifespan (3-5 years) and can overheat if glued directly to the roof.

The “Portable Suitcase” Secret

Experienced boondockers often carry a Portable Solar Suitcase in addition to their roof panels. If you park your RV in the shade to stay cool, you can deploy the portable panels 20 feet away in the direct sun to keep your batteries charging.

🛠️ Installation Advice

Why Parallel Wiring Wins for RVs

On an RV roof, shading is your biggest enemy. AC units, TV antennas, and even a nearby tree can cast a shadow on one panel. If wired in Series, that one shadow can kill the output of your entire array. Wiring in Parallel ensures that every panel works independently—if one is shaded, the others still produce full power.

❓ FAQ

RV Boondocking Solar FAQ

How many panels do I need to run an RV AC?To run an AC off-grid, you typically need at least 800W–1,200W of solar and a massive Lithium (LiFePO4) battery bank. Most boondockers use solar for everything except the AC, which they run via a generator or high-end “Soft Start” inverter system.

Do I need to tilt my RV panels?Tilting panels toward the sun can increase output by 30%, but most RVers leave them flat for convenience and safety. If you boondock in the winter (when the sun is low), tilting becomes much more important.

What is the best solar panel brand for RVs?For DIYers, Renogy and Rich Solar offer the best balance of cost and reliability. For high-end, walk-on durability, Zamp Solar or Maxeon are the premium choices.