I think 75% of full charge after a year would be low self discharge.
Does that sound like it is long enough for what you plan on using these for?
I have Eneloops and Energizer NiMH. The energizer hold a charge well, though probably not as well as the Eneloops. But they may have more power, too. Eneloops don’t have quite as many mAh, at least when I got them they didnt.