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...should have a proper starting point and document such as MS Excel...
Quote...should have a proper starting point and document such as MS Excel...Excel is poor for sharing information as everyone needs to have a copy so you can never tell who has the latest version.Instead I'd recommend sharing a link to an online document - e.g. google docs spreadsheet.
I have 4 unopened packs of 2xAA Energizer Ultimate Lithium. I measured these using my Brymen BM257.Use-by Date 03-20261.8261.825Use-by Date 03-20281.8061.810Use-by Date 03-20281.8061.806Use-by Date 03-20281.8051.806
Quote from: ralphd on July 26, 2015, 03:01:07 pmMy point was to see if there is a common household item like a battery that can be used as a voltage reference.It would be useful to hobbyists that aren't going to spend $10 on a precision reference.Anyway, I'll probably end up getting a max6126 just to satisfy my curiosity. And maybe I'll find a common household item that others can use for a 1% reference...Your meters out of the box specs are orders of magnitude more accurate than any of the sources you're looking at, it is almost impossible that you will adjust the meter to be more accurate using them, and almost certain that you will make it worse.
My point was to see if there is a common household item like a battery that can be used as a voltage reference.It would be useful to hobbyists that aren't going to spend $10 on a precision reference.Anyway, I'll probably end up getting a max6126 just to satisfy my curiosity. And maybe I'll find a common household item that others can use for a 1% reference...
I tested the first 8 batteries from a pack of HomeDepot "defiant" MIC AAA batteries, Dec 2020 exp:1.610, 1.611, 1.610, 1.611, 1.610, 1.611, 1.610, 1.611This is after adjusting the calibration of my meter to within 0.1%.