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Walmart Is Putting Digital Labels That Change Prices Instantly on Every Store Shelf in America (www.inc.com)
submitted 4 months ago by to c/aboringdystopia@lemmy.world
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[–] 2 points 4 months ago* (1 child)

They run off batteries. Usually an entire rail has one battery for all the tags. But they only need to use power to change the screen. I forget the type of screen but its like digital ink? They usually refresh and maybe change price around midnight where i work. They do run off of something wireless but hell if i know exactly how it works.

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  • [–] 1 point 4 months ago (1 child)

    that seems… unlikely, just because of the labour cost to change the batteries compared to a DC power supply and plugging the shelves in

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  • [–] 1 point 4 months ago*

    They have to change whats on shelves and distances between items all the time. So changing batteries isnt all that uncommon.They also are pretty power effecient since the displays are e-ink Edit: also we have a box of batteries in the back. If we notice a whole rail isnt displaying properly we can go grab a new one and have it switched out in like 2 minutes.

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