Amazing performance of 3yr 5mo 17d outdoors by these RayOVac
I bought these from a retail store. Bought before RayOVac (the battery manufacturer) was acquired by Energizer in 2019, so YMMV with currently-made batteries. Bought this brand because it was the well-known, major, made-in-USA brand that was cheapest on the shelf (compared with Duracell & Energizer) at the time. These batteries' expiration dates was Nov 2025, so I may have bought them sometime between 2015 and 2017. RayOVac Alkaline AA (LR6) batteries, manufacturer's type code = TE4F3. Installed these two AA batteries into my outdoor wireless transmitter thermometer on 27 July 2019, so they may have sat in storage at home for anytime up to 4 years. The outdoor unit faithfully transmitted temperatures to my indoor receiver over the years, through temperatures ranging from way below freezing (as low as 12°F / -11°C) to scorching hot (above 96°F / 35,6°C). Thermometer just quit transmitting today, 11 Jan 2023 = after 1,264 days (about 3 years 5 months 17 days or so) of continuous operation of the digital thermometer, as well as transmitting to my indoor receiver/display. I am amazed at this performance!
AnnamMyx1Ki3Roule
Winchester, Virginia, USA