[crusty old prospector]

I still have yet heard an answer as to the best way to increase longevity in a cell phone battery. Keep it full or draw it down. It appears all hope is lost.

[Bob434]

Can they be substituted for lithium in phones and laptops and such? Would rather have shorter lived, safer battery than one that can barbecue a whole house or garage in the blink of an eye

[ROCKLOBSTER]

Fast charging makes zinc-ion batteries stronger instead of weaker, US study finds

Well that ain't no good.

You don't need a study to figger out that a product that doesn't wear out will ever make it into the market place.

[Cold Heart]

Thanks & thanks to all for the tips