Reviewed August 2026 · General information
A power plan converts every appliance into daily energy, then tests whether battery and charging can cover both average conditions and poor-solar days.
Calculate demand
For each device, estimate watts multiplied by hours of use. Add refrigeration cycling, inverter losses, standby loads and charging of phones, cameras and communications. Separate essential loads from comfort loads.
Calculate supply conservatively
- Usable battery energy within approved depth-of-discharge limits
- Expected solar after shade, heat and weather losses
- Vehicle charging during actual driving time
- Mains or generator access where permitted
- Reserve for delayed travel or equipment failure
Use a three-day scenario
| Day | Test |
|---|---|
| Good day | Normal demand and strong solar |
| Poor day | Normal demand and limited solar |
| Recovery day | Essential loads plus realistic recharge opportunity |
Authoritative sources
Specifications and regulations can change. Check the latest applicable material before making a towing or safety decision.
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