Morgans wrote:
NiMH have a self-discharge rate of 3-5% per day. If you are going on
extended trips, purchase an alkaline battery pack.


You need to google about that to see for yourself. They self discharge at
slightly over 1% per day. Given the fact that they have a higher capacity
than alkaline, they will still have more capacity left over, even
considering self discharge, than alkalines for at least two or three weeks.

I have gone to different sites and read different values, so I use the
highest.