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Custom System Design
Custom RV Solar & Lithium Power Systems
Looking for a custom RV solar system, lithium battery upgrade, or complete off-grid RV power solution? Big Beard Battery, located in Athens, designs and installs custom RV power systems for customers across Texas and nationwide — including Dallas, Waco, Tyler, Texarkana, and beyond.
We specialize in RV solar installation, Victron Energy systems, lithium battery upgrades, inverters, generators, and complete off-grid power systems for fifth wheels, motorhomes, toy haulers, travel trailers, vans, and mobile living setups. Whether you need basic backup power or want to run your RV completely off-grid, our team designs a system specifically for your RV, travel style, and energy usage.
Why RV Owners Choose Big Beard Battery
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Custom RV solar system design
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Lithium battery upgrades for RVs
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Victron Energy authorized dealer and installer
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Off-grid RV power systems
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RV inverter and charging systems
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Nationwide shipping and support
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DIY-friendly system plans and wiring diagrams
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Professional RV solar installation in Texas
Flexible RV Solar Installation Options
DIY RV Solar Installation
Perfect for hands-on RV owners. We design your system, ship components nationwide, and provide detailed wiring diagrams and support.
Professional Installation in Athens, Texas
Bring your RV to the Big Beard Battery team at the Road Life Complex in Athens for a complete professional RV solar and lithium battery installation.
DIY Solar Install Clinic
Learn while you build with our hands-on DIY Solar Install Clinic. Install your own RV solar and lithium system alongside our experienced team with access to tools, equipment, campsites, and guided instruction.
Mobile RV Solar Installation
Need installation at your location? We can connect you with trusted mobile RV solar installers throughout the United States.
Step 1: Request Your Free System Design
Complete our Free System Design form and tell us about your RV and power goals. We’ll gather important details like:
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RV type and size
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Current electrical setup
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Camping style and power usage
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Desired battery capacity
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Solar needs
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Generator integration
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Off-grid goals
This allows our team to design the right RV solar and lithium battery system for your specific needs.
Step 2: Consultation with an RV Power Expert
A member of the Big Beard Battery team will contact you to review your project and discuss recommendations for your custom RV power system. We’ll help guide you through options for:
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RV lithium batteries
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Solar panels
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Victron inverters and chargers
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Battery monitoring systems
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Generator compatibility
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Future expansion options
Our team includes experienced RV technicians and off-grid power specialists who understand real-world RV camping and travel.
Step 3: Receive Your Custom Quote
After your consultation, you’ll receive a detailed written quote outlining the recommended components for your RV solar and lithium system. Your quote may include:
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Lithium batteries
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Solar panels
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Inverters and chargers
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Victron components
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Wiring and protection equipment
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Installation options
We provide transparent pricing, expert recommendations, and ongoing support throughout the process.