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Wireless Numeric Keypad vs. AmazonBasics AAA Alkaline
One of the streaming media players behaved funny, which always results in a numeric keypad battery replacement. This AmazonBasics AAA alkaline was down to about 0.5 V and long past its best-used-by date:

Numeric keypad – 5 year Amazon AAA Alkaline Nigh onto six years isn’t bad, particularly as it hasn’t leaked electrolyte all over the negative terminal.
Suggestions that Amazon monitors their Marketplace sellers to figure out what’s profitable, then promote a Good Enough house brand product to kill off the competition, seem to describe the situation just about perfectly.