@GroupNebula563@mastodon.social It depends on what you’re trying to optimize for and your specific application. You asked for the most performant. For me, that would be the Energizer Ultimate Lithiums (L91). They can provide significantly more current, and maintain that over their lifetime vs. alkaline chemistry. This can be important in a lot of applications. They also have a 25 year shelf life. This is what I use in anything that I have that I need to grab and have work (e.g. a flashlight in the glove compartment or an emergency radio) However, for most day to day usage, I’ve switched over to the Eneloops (or the Ikea branded version). For me, they work just as well in most applications, with the advantage of costing less in the long run, and I feel better about not having to throw them away. Between those two, I’ve gone almost completely away from alkaline batteries, ESPECIALLY cheap alkalines. I’ve had way more $$ stuff destroyed from leaking batteries than I’ve ever saved buying cheap (or even name-brand) alkalines. And neither the Lithiums nor the Eneloops leak, even if you neglect them. If your doing a $2 disposable widget then sure, use a cheap alkaline, but even in a $20 remote control, how much can you save over it’s lifetime on cheap batteries? And Yes, I know way too much about batteries.