Usable evidence
Battery Codebook provides keyboard access, visible focus, labelled controls, readable contrast and text verdicts that do not rely on colour alone.
The site is checked at 320, 375, 390, 768 and 1440 pixels, including keyboard navigation, visible focus, labelled form controls, reduced-motion behaviour and common screen-reader patterns.
These are practical implementation checks, not a claim of formal WCAG certification. External manufacturer PDFs and the separate Maple Web Group contact form are outside this site’s interface and may present limitations Battery Codebook cannot directly correct.
Pages use landmarks, a skip link, visible keyboard focus, labelled controls, text verdicts in addition to colour and layouts designed to reflow without horizontal page scrolling. Motion is reduced when the operating-system preference requests it.
Use the contact and corrections route and include the page address, the task you could not complete, your device or assistive technology where relevant, and a way to reproduce the problem. Do not include sensitive personal information.
Last reviewed 2 September 2026.