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Maximum COMFORT ON BOARD - Which way to go? ⛵️ | Ask The Expert with NIGEL CALDER

July 12, 2025 · 4 min · 10K views

What this video covers

Nigel Calder and Jan Attenstedt evaluate the feasibility of removing a diesel generator from a 1988 43-foot sailboat to rely instead on a high-output DC electrical system.0:26 Replacing a generator with a high-capacity lithium-ion battery bank and high-output alternators allows for air conditioning operation without the noise, maintenance, and engine run-hours associated with traditional gensets.0:59 This transition requires a comprehensive load analysis to determine total daily energy consumption before selecting hardware.Watch While the initial capital investment for lithium batteries and high-output charging systems is significant, the long-term costs may be lower than replacing a generator that suffers from premature wear due to light-load operation.2:13 The decision depends heavily on usage patterns, as extended cruisers benefit more from the lifestyle gains of a silent, efficient DC system than seasonal sailors.2:57 The Boat Electrics 101 course at boathow2.com provides an energy system planner tool to assist with these calculations.3:56

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