>>106648908
I've used a half dozen different chargers at this point, both the ones that come with the batteries and ones I've bought separately. They have all the "refresh" features and the LCD meter to track voltage, charge and health. It's not the charger. I cannot come to any other conclusion than that the Amazon batteries are private label junk.
Even other major brands-- Energizer is the only one I can get locally (NiMH only) and works better than Amazon Basics despite identical specs.
EBL is the only Chinese brand I've bought online that are consistently reliable (if you avoid the ones with USB ports; those always fail early).