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How does this weight scale power on? (step-on)

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SiliconWizard:

--- Quote from: xani on April 10, 2020, 02:54:19 pm ---
--- Quote from: IanB on April 05, 2020, 09:59:41 pm ---As a side note, I have a cheap digital caliper powered by a button cell. It also turns on automatically when you operate it. However, if you leave the button cell installed it drains to empty within a few months or less. Do you know for sure your example scale doesn't in fact drain its battery while in standby?

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I also have cheapie but mine have on/off button. "Turning it off" reduces power usage by about 20%. Like, what's the fucking point  of "turning off" |O

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Ahah, yeah they're not all created equal. I've owned a cheap digital caliper that would just deplete batteries in a few weeks when off.
OTOH, I have a Mitutoyo one that I've bought a few years ago. Original battery is still good and I haven't changed it yet.

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