Independent portable power planning
Know what keeps running.
Estimate realistic battery runtime with transparent assumptions, then see how far your plan reaches.
Sources and assumptions stay visible Start with the load
Plan around what must keep running.
Motor starts, cycling appliances, and overnight medical loads behave differently. Pick a familiar load to update the world.
Your energy route
16.6 hours for the current plan.
The yellow route shows how far the usable energy reaches. Change the inputs at the start and the route answers with the same math.
- Selected load
- Refrigerator
- Usable energy
- 870 Wh
- Average draw
- 53 W
Evidence before recommendation
Every number has a job and a source.
Published specs keep their source and retrieval date. Compatibility checks separate continuous output from motor surge. Runtime estimates show efficiency and duty-cycle assumptions. Your first power plan is ready.
1,024 Wh at 85% usable capacity gives an estimated 16.6 hours for refrigerator.
Planning estimate only. Confirm surge output, connectors, temperature range, and equipment requirements before use.
Independent planning estimates. No sponsored rankings.