Site and standards
Terms of Use
By using this site you accept the points below. They exist mainly to make the limits of the answers explicit.
1. What this site provides
Power Bank Tools provides calculators and explanations about battery energy, charger output and travel plug compatibility. Results are estimates derived from the values you enter and from published formulas. They are not measurements of your hardware.
2. Not electrical safety certification
Nothing on this site certifies that a device, charger, cable, adapter or converter is safe for a particular use. Where safety depends on a device's own documentation, that documentation takes precedence over anything written here. High-power mains appliances are outside the scope of the recommendations on this site.
3. Accuracy and availability
The site aims for correctness but is provided "as is" and without warranty of any kind. Data can become outdated after publication; each data page records the date it was reviewed. Pages may be changed or removed without notice, and the site may be unavailable at times.
4. Your responsibility
- Verify critical decisions — especially anything involving mains voltage or high-power appliances — against the manufacturer's documentation.
- Do not rely on this site for medical, life-support or industrial equipment questions. Those are outside its scope.
- Do not attempt to use the site's explanations as a substitute for a licensed electrician where one is required.
5. Acceptable use
You may use the site for personal or professional reference, link to any page, and quote short passages with attribution. You may not republish substantial parts of it as your own content, or present its outputs as certified measurements.
6. Limitation of liability
To the extent permitted by law, the site's operator is not liable for loss or damage arising from use of the site or reliance on its outputs — including device damage, travel disruption or purchases made on the basis of an estimate.
7. Third-party links and affiliate links
Outbound links, including affiliate links where present, are governed by the policies of the destination site. A commission, where it applies, never alters a compatibility answer. See the affiliate disclosure.
8. Intellectual property
The formulas and standards referenced are public. The written explanations, page structure and code on this site belong to its operator except where a source is credited.
9. Changes to these terms
Changes take effect when published on this page. The review date below marks the last substantive edit.
Last reviewed 6 November 2026.