Thread #108677880
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>this wide of a spread in real world performance tests
>brands I've never even heard of scoring the best
I fucking hate these button cells but I'm forced to use them
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>>108677880
The local store sells CR2032 batteries from GP, Varta, Energizer, and Panasonic. I use them in my car key, which uses BLE for keyless locking/unlocking. The car will alert you on the dashboard when the key battery is about to die. The key still works fine, but the keyless function stops working after about a month.
The worst battery was the Varta. After 2 months, the car said, "Replace key battery," and this CR2032 was the most expensive of all of them. I replaced it with a GP battery. It died in 5-6 months. Now I have an Energizer battery in it, and it's been a year. It still works fine. I'll try a Panasonic battery when the Energizer battery dies.
The differences are huge, which is strange, but I don't know the manufacturing dates or the temperatures at which it was stored. Those are critical factors, I would say.