Basic Electrical Formulas and Calculations
10 March 2024 · 7 min · 14K views
What this video covers
Nate explains fundamental electrical formulas required to design and operate off-grid and marine power systems.Watch Watt’s Law defines the relationship between power (watts), voltage (volts), and current (amps), allowing users to calculate unknown variables for sizing components like inverters and wiring.0:37 For example, a 3,000-watt inverter on a 12-volt system requires calculating 3,000 divided by 12 to determine the 250-amp load.2:11 The guide also details how to convert between amp-hours and watt-hours to accurately compare battery capacities, noting that manufacturers often use lower-voltage portable power stations to inflate amp-hour ratings compared to standard 12-volt lithium batteries like those from Battle Born.3:40 Additional calculations cover energy consumption over time, including converting watt-minutes to watt-hours and amp-minutes to amp-hours by dividing by 60.5:37 Understanding these unit conversions prevents misleading comparisons between different battery technologies and ensures proper sizing for electrical loads.
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