Sailing With Phoenix | Olivervideo

Four days inside a battery box

21 January 2026 · 31 min · 8K views

Man peers through hatch into battery box aboard sailboat

What this video covers

Oliver constructs a custom battery box to house five or six batteries as part of a boat refit.6:10 He uses popsicle sticks to template the hull contour, allowing his father to build a custom-fit wooden box.8:40 The installation process involves sanding the fiberglass hull to 40-grit, epoxying the base boards in place, and reinforcing the structure with fiberglass cloth.12:01 To avoid resin contamination on the boat, he performs the fiberglass mixing and preparation in a van.18:15 He secures the final assembly with screws to ensure the battery bank remains fixed in the event of a knockdown.29:30 Following the box installation, he mounts a Victron monitor screen and a Raymarine chartplotter at the chart table, ensuring the table lid clears the new electronics.28:06 The project concludes with painting the interior of the box and verifying the fit of the battery bank.25:31

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