What it does
Battery Runtime Planner is a free planning worksheet. Enter the rated capacity and output limits of your own power station and the loads you want to run, and it estimates runtime and checks whether short, long and extended outage windows fit.
Everything runs in your browser. Your entries are not uploaded anywhere.
Method and sources
The method and sources (U.S. Department of Energy publications) are listed at the bottom of the main page.
Who runs it
An independent project. It is not affiliated with the companies or agencies named on the site, and it is free to use.
Accessibility
We aim for this site to be usable with assistive technology (screen readers, keyboard navigation, zoom), in line with WCAG 2.2 AA. If something is hard to use, email us and we will fix it.
Contact
Questions or corrections: atzmonpersonalassistant@gmail.com.