Alkaline cells are not really rechargeable. Not in a practical way*. So needs to be NiMH.
The Alkaline AAAA cells can work out at 30c each and have a shelf life of 5 to 10 years, and 1500 hours continuous use in Kobo/MS type pens with no BT. Original design by N-Trig.
NiMH will self discharge in 2 weeks to 3 months (the higher capacity ones self discharge faster).
I've designed electronics and specified battery systems. High consumption things benefit from rechargeable cells or batteries. Single use cells on anything low consumption, like MS type Pen without BT, keyfob, wireless doorbell button, smoke alarm, electret microphone (not actual condenser type) or Digital multimeter etc is pandering to fashion. Makes no operational or financial sense.
[If an Alkaline cell is only 1/3rd used and very slowly recharged, they can be charged somewhat. Any attempt to sell such systems since 1970s has always failed. Reliability & safety issues. Either you have low drain using disposable Alkaline (1V to 1.6V per cell) or Lithium Primary (2.75V to 3.3V per cell) or Zinc Air (always on use in hearing aids or cattle Fencers) or you use rechargeable for high current drain such as NiMH, Lithium Secondary, or if weight & size is no issue, Lead Acid).
Zinc Carbon should be banned.
There is a rechargeable Silver based cell, but only used in 1950s to 1970s military.
Other cell types exist but are very niche.]
Maybe best site on batteries on the Internet
https://batteryuniversity.com/
Obsolete battery information for 1922 to 2000 radios and batteries for other electrical stuff from 1890s.
http://www.blaukatz.com/