Use-case battery recommendations
Every comparison ends in a verdict by use case, never a single overall winner. The right brand for a weekender on a trailer is not the right brand for a liveaboard four hundred miles from a workshop, and a publication that pretends otherwise is optimising for affiliate clicks rather than for readers.
Claims are labelled as claims
A specification we have not independently verified is marked claimed and attributed to the manufacturer. Boat Battery currently publishes no independent product bench results. If that changes, a measured figure will link to a complete evidence file covering the exact product, conditions, equipment, raw readings and uncertainty. We do not repeat a cycle-life figure as fact because it appeared on a datasheet.
Product limitations and selection criteria
The honest downsides chapter appears before the buying advice in the guide, and each brand page carries a “where it falls short” section that no brand may review before publication. If we cannot name a genuine shortcoming for a product, we have not looked hard enough.
Brand corrections and editorial independence
A brand may correct a factual error, supply a datasheet, or ask us to bench-test a product. We will consider all three and we do not charge for any of them.
A brand may not buy a place in a table, a ranking, a verdict, or the removal of a published shortcoming. No brand sees a page before publication. We do not accept sponsored posts, paid placements, or gifted product in exchange for coverage. Where a review unit is supplied for bench testing, we say so on the page and we keep the result whatever it shows.
Corrections
When we get something wrong we publish the correction on the page, dated, rather than editing the text quietly. Substantive corrections carry a note at the point of the change. If you think a number here is wrong, write to us with your working: that is the most useful email we receive.
Review cycle
Brand comparisons are re-checked quarterly and the review date appears on every table. Calculator assumptions are versioned and dated on the methodology page. The guide is reviewed at least twice a year, and any page carrying a price is reviewed when the market moves.
AI and authorship
Software and AI-assisted tools may support research, drafting, arithmetic, code and visual creation. A human editor remains responsible for publication decisions, source checking and corrections. Illustrative generated visuals are used to explain layouts and components; they are not evidence of a specific installation or test.