That link saves me having to describe the 6 and 4 cell holders that came with a few sets of AA NiCads I bought at the Norbreck Castle radioham rally over a decade ago. I rather thought this was just what you were after (only in AAA size - which I've never come across other than as the AAA storage option in those very same boxes - 4 x AAA capacity in the 4x AA cell storage box and 8x AAA in the 6x AA cell storage box).
They're very useful for keeping camera rechargeable cells organised if you take the trouble to number the cell pockets using indelible marker on the inside of the translucent plastic storage box. I'm guessing you after some means of keeping track of discharged/charged cells when out and about.
I used the 4 cell box to store spares for the 3MPxl Nikon CoolPix which uses them a pair at a time. By picking the freshly charged cells from locations 1 & 2 and then moving cells 3 & 4 into the vacated 1&2 slots, I could park the used cells in their place. Basically, I was rotating the cells a pair at a time in the storage container with each battery change.
Ten years ago when flash memory cards (SD) were horrendously expensive, a set of 3 batteries would typically outlast the card supply for a day's "shoot". If it ever got to the stage where I was reaching for a fourth change of battery, the ones that had been used first usually had recovered enough to provide a few extra shots. after that it was a case of mix and match to make up a pair with enough charge left for a few more shots before hunting around for a shop selling AA alkaline cells.
The trick with using AA (and AAA) cells in pairs or quads is to mark them with an indelible marker to avoid mix ups. I normally place a simple pattern of marks around the positive pole where they'd be less likely to be rubbed out by handling. I use the same system with the larger 6 cell storage box I pack with the later 8MPxl Canon in the cheap ($10 Canadian) Olympus labelled pocketed fabric camera case which I'd originally purchased with the Nikon CoolPix in Henrys in Toronto just over a decade ago.
I've never had any need to keep the 8 AAA rechargables I own quite so well organised so I can't help you in regard of what you're after other than explaining why you might be looking for something so specific as an AAA storage box to the rest of the contributors in this thread. :-)