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Privacy Policy

Last updated: October 6, 2026

Our calculators do not require an account, and calculator inputs are processed in your browser. We use Google AdSense for advertising and Google Analytics to understand visits. This policy explains the data these services may process and your choices.

1. Information We Collect From You

We do not collect any information you enter into a calculator. All inputs (battery capacity, daily kWh, electricity price, etc.) are processed in your browser and never transmitted to our server. We do not require an account, an email address, or any other identifier to use the calculators.

2. Cookies and Tracking

Google and its advertising partners may use cookies, web beacons, local storage, and identifiers such as IP addresses to process page URLs, browser and device information, and interactions with the site or ads. Advertising may be personalized or non-personalized depending on your region, consent, and Google settings. We do not send calculator inputs to these services.

Learn how Google uses data from partner sites: https://policies.google.com/technologies/partner-sites . Manage Google advertising preferences at https://myadcenter.google.com/ , through browser cookie settings, or through any consent message shown on this site.

3. Browser Local Storage

Some calculators may remember your last inputs or your preferred unit system (metric vs imperial) in your browser’s localStorage. This data lives only on your device, is never sent to our server, and you can clear it at any time through your browser settings.

4. Hosting and Server Logs

The site is hosted on Cloudflare Pages. Cloudflare’s edge network may automatically log standard request metadata (IP address, user agent, requested URL, response status, timestamp) for security, abuse prevention, and DDoS mitigation. This metadata is governed by Cloudflare’s privacy policy and retention schedule; we do not export, mine, or correlate it with any other identifier.

5. Children’s Privacy

This site is intended for a general audience. We do not knowingly request personal information from children under 13 or the applicable age in their jurisdiction. If you believe a child has provided personal information, contact us.

6. Your Rights (GDPR / CCPA / LGPD)

Depending on your jurisdiction, you may have rights to access, correct or delete personal data, withdraw consent, or object to processing. Contact us about these rights or server logs. Google also provides privacy and advertising controls through its services.

7. Changes to This Privacy Policy

We update this policy when our hosting, advertising, analytics, or features change. The date at the top identifies the latest revision.

8. Contact

Privacy questions and data-subject requests: [email protected].