Sky Batteries Lasted 90 days

Hello, I assume this is unusual, my Sky batteries (Energiser Ultimate Lithium) lasted just 90 days. Does that indicate a faulty unit? The voltage seemed to drop quite quickly towards the end, and I got no warning of low battery voltage. I had noticed the voltage discharge slope increase, but I assumed that’s what was normal. I have replaced with Alkaline until I can get some more Ultimates.
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4 posts were merged into an existing topic: Batterry Voltages