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They have an "off" button and they may even auto power off, but all that does is blank the screen. They're still tracking the position of the slider and that's what consumes most power. Any time they have a battery installed they're draining it as fast as if they were fully on.
If they didn't do this they'd lose their zero position every time.
grams-
They have an "off" button and they may even auto power off, but all that does is blank the screen. They're still tracking the position of the slider and that's what consumes most power.
For occasional home use, maybe I'll just to get the £20 from Screwfix and remove the battery between uses. I assume setting the zero position cannot be that much trouble.
Nick_S
Do you mean the cheaper ones cannot be manually turned off when they are not being used, or just that they don't auto power down when left idle for a while?