Chan Tran
Subscriber
My Garmin GPS has settings for alkaline AA and lithium AA batteries. So there must be a difference.
Disposable Lithium AA like Energizer Ultimate Lithium has voltage up to 1.7V. When it gets down to 1.5V it's kind of dead. Alkaline only about 1.55V new but most of its life is below 1.5V and usable down to 1.2V or so.