Laptops, Phones, Tablets and TV on a Boat
Estimate digital and entertainment loads for a yacht lithium battery bank and reduce inverter losses with efficient DC charging.
Example daily range:
- two laptop charging sessions: 300-500Wh/day
- television: 100-250Wh/day
- phones and tablets: 50-150Wh/day
- camera batteries: 20-100Wh/day
- Wi-Fi/network equipment: 100-400Wh/day
Where suitable equipment is available, USB-C PD and DC converters can reduce the need to keep a large inverter running just to charge small electronics.
Turn the appliance into a daily energy figure
The peak wattage tells you whether the inverter and BMS can start the load. Runtime tells you what it does to the battery bank. Treat those as separate checks, then include conversion losses and the loads already running aboard.
- Measure typical watts and realistic hours per day, including standby use and cycling loads.
- Check startup surge and maximum simultaneous current against the inverter, BMS and cabling.
- Test the result against a poor-solar day and preserve a reserve for essential navigation and safety loads.
Work out your own numbers
Battery Runtime CalculatorCalculate how long a marine lithium battery bank will run a given load, down to the state of charge you are willing to reach.Marine Lithium Battery Size CalculatorWork out the lithium battery capacity your boat needs from daily kWh, reserve, autonomy, voltage and charging capability.
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