LiFePo4 lithium batteries from AGM lead-acid for boats and campers - Consumption calculation Ep.2
26 April 2023 · 12 min · 3K views
What this video covers
Calculating total electrical consumption is the essential first step before upgrading a boat or camper from lead-acid (AGM or gel) to LiFePO4 lithium batteries. To determine the required battery bank capacity, owners must create a detailed consumption table that separates usage into two distinct scenarios: while underway and while at anchor or in a parking area. Electrical load calculations require converting all device ratings into a single unit of measurement, typically amperes.5:49 Using the formula Amperes = Watts / Volts, owners can standardise data found on equipment labels or manuals.4:36 For devices with intermittent duty cycles, such as refrigerators, users must estimate actual run-time rather than assuming continuous operation.8:58 A clamp-on ammeter provides a practical method to verify manufacturer specifications against real-world draw.8:05 The process involves listing every onboard appliance, including new additions like washing machines or bread makers, to establish a total daily amp-hour requirement.11:05 Accurate load profiling prevents undersizing the new lithium system.11:29
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