Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Keeps alot of AA's out of the landfill. They seem to hold up well, and last decent. I mostly use them in apple wireless keyboard and mouse. I also use them in a few flash lights, LED candles, wireless mouse, etc. No complaints from me other than i wished they charged a bit faster.. even bought AAA's, and C adapters since i like them so much.