A power-station buying checklist that starts with your loads
Use your calculated capacity as the first filter. Then check the specifications that a watt-hour total cannot answer.
Energy capacity
Start with a target based on measured use and a clear schedule. Look at nominal Wh and any documented usable-energy measurements relevant to your load. A larger capacity can give more flexibility, but additional weight, size, and cost may matter. The planner’s capacity classes are illustrative size bands, not endorsed products.
Continuous power and startup
Add the power of loads that can run together. Then verify motor-start requirements against the exact model’s surge rating and permitted duration. The planner screens for one device starting while the others run. Several devices starting together may exceed that estimate. Check the appliance and power-station manuals rather than relying only on a peak-watt advertisement.
Ports and transfer behavior
Count usable AC outlets and check the USB-C or DC profile your equipment requires. Check whether outputs share a limit. If uninterrupted operation matters, investigate documented transfer time and test compatibility. A power station described as having an emergency-power function may still interrupt sensitive equipment.
Recharge and ownership
Consider charge time from the source you can actually use, temperature limits, warranty terms, and the manufacturer’s maintenance instructions. Solar input has voltage, current, and connector constraints. Read the manual before ordering panels or adapters. This site does not claim to have hands-on tested the products in Amazon search results.
Sources & further reading
Numerical examples and default device values are illustrative unless explicitly described as a measurement. Consult the manuals for your own equipment.
Make it a plan for your home.
Choose your devices and edit the assumptions.
Open the backup planner