300–500 Wh / 300–600 W
Phones, router, lights, camera and a laptop; not heating appliances.
LITHVOLT ACADEMY GUIDE
Portable power stations
Phones, router, lights, camera and a laptop; not heating appliances.
700–1,200 Wh / 1–2 kW
Mobile office, TV, CPAP and efficient fridge; short bursts of kitchen loads if surge allows.
1.5–3 kWh / 2–3 kW
Longer backup and heavier appliances; weight and recharge time become decisive.
Above 3 kWh
Treat as a wheeled/modular energy system with dedicated protection and transport planning.
Check ports
Verify AC voltage/frequency, USB-C PD rating, regulated DC output and solar input voltage/current window.
Runtime rule
Use measured appliance energy when possible. Compressors cycle; heaters draw near nameplate continuously.
Non-negotiable design checks
Energy
Wh = watts × hours. Battery nominal Wh = volts × amp-hours.
Runtime
hours ≈ nominal Wh × usable depth × efficiency ÷ load W.
DC current
amps ≈ AC watts ÷ (battery volts × inverter efficiency). Higher system voltage reduces current.
Solar yield
daily Wh ≈ array W × peak-sun-hours × 0.75. Use site-specific data for final design.
Educational planning guidance—not a final electrical design, compliance declaration or installation instruction. Local rules and exact manufacturer data take precedence.
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