State of play of 1.5V Li-ion AA and AAA.

[Desertcat]

Those look a lot like these. Hmmmm…
That clock/weather station isn’t looking too good.

[Review] XTAR 1.5V AAA rechargeable batteries

Alkaline batteries easily leak unexpectedly and are bad for the environment. NiMH batteries (preferably the LSD variants) are better in almost all aspects: Rechargeable hundreds or thousands of times, higher current and they don’t leak. But the downside is that their voltage is more around 1.2V instead of 1.5V. This causes some devices to show an early battery warning or to not work at all. Li-ion based 1.5V batteries try to fill this gap: They are rechargeable Li-ion cells with an integrated s…