Portable Solar Generator Calculators - Battery Capacity, Runtime, Solar Sizing & Power Requirements

Battery Capacity Calculator

Calculate the battery capacity (Wh) you need based on the devices you want to power and how long you need to run them.

Calculate how long your portable power station will run specific devices. Input battery capacity and device wattage.

Determine the solar panel wattage needed to charge your power station in a specific time frame based on sun hours.

Calculate total wattage needed to run multiple devices simultaneously. Includes surge wattage for motors and compressors.

Estimate how long it takes to fully charge your power station via solar, AC wall outlet, or car charger.

Calculate cost per watt-hour to compare value between different power stations. Find the best deal.

Plan your complete off-grid power system. Calculate total Wh needed for multiple days and size solar panels accordingly.

Calculate power needs for camping trips. Find the right size power station based on trip duration and devices.

Size a home backup system for power outages. Calculate capacity needed for critical devices like fridge, router, medical equipment.

Compare total cost of ownership between solar generators and gas generators over time. Includes fuel costs and maintenance.

Choosing the right portable solar generator can be overwhelming. Our calculators help you:

Avoid over-buying: Don't pay for more capacity than you need. Our calculators help you size correctly.
Prevent under-buying: Ensure your power station has enough capacity for your actual needs.
Make informed decisions: Understand the math behind battery capacity, runtime, and solar charging.
Compare options: Use consistent calculations to compare different power stations fairly.
Plan ahead: Calculate exact power requirements before investing hundreds or thousands of dollars.