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A highly experienced RVer documents the step-by-step build of a custom 8x20 Diamond Cargo toy hauler, designed for off-grid comfort and to accommodate a Harley Davidson Ultra Limited. The project features a robust electrical system with 640Ah LiFePO4 batteries, Victron Energy management, 600W solar, and a 24VDC setup to support high-efficiency rooftop AC. The build also includes large water tanks, on-demand hot water, induction cooking, advanced monitoring, and four-season insulation...
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A highly experienced RVer documents the step-by-step build of a custom 8x20 Diamond Cargo toy hauler, designed for off-grid comfort and to accommodate a Harley Davidson Ultra Limited. The project features a robust electrical system with 640Ah LiFePO4 batteries, Victron Energy management, 600W solar, and a 24VDC setup to support high-efficiency rooftop AC. The build also includes large water tanks, on-demand hot water, induction cooking, advanced monitoring, and four-season insulation. Members discuss technical choices like solar panel configuration, tank sensors, and wall finishing, with the lead builder sharing detailed progress, photos, and YouTube updates.
Consensus emerges around the benefits of thicker aluminum siding, straight axles for ground clearance, and the use of Victron and JK BMS components for reliable power management. Several members express interest in following the build for inspiration, especially those planning similar cargo trailer conversions. There is agreement that painting plywood walls is a practical alternative to paneling, and that integrating tank sensors with Victron Cerbo GX is effective.
Key actionable insights include: carefully matching solar panel voltage to the charge controller, considering insulation and wall finishing options for durability and repairability, and leveraging online marketplaces for cost-effective build components. The topic serves as a comprehensive resource for anyone planning a high-spec, off-grid cargo trailer conversion.