Your information
Privacy policy
Last updated: October 27, 2026
Charge Window is a free, browser-based estimate tool. This page explains what information is handled when you use it.
Planner inputs
Battery size, state-of-charge values, charging power, efficiency, plug-in times, and rate periods are processed locally in your browser. The site does not send those values to an application server, store them in an account, or save them in browser storage.
Cookies, analytics, and advertising
This site does not use advertising, analytics, or third-party tracking scripts and does not set its own cookies for the planner.
Basic technical information
The hosting provider may process standard technical request information, such as an IP address, browser type, requested page, and request time, to deliver and protect the website. Hosting operations are subject to the provider’s own policies.
Changes
This policy may be updated if the site’s features or hosting arrangements change. The date above indicates the latest revision.