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Pure sine inverter for sailboat — sizing and installation 2026

Running a 230 V coffee maker at anchor, charging a laptop, powering the fridge off-grid: the DC/AC inverter converts your 12/24 V bank to a clean sine wave. Correct sizing means understanding startup surge, efficiency, and idle draw. Victron Phoenix vs Mastervolt Mass Sine comparison + 2026 USD ex VAT budget.