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/diy/ - Do-It-Yourself


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>> No.2047297 [View]
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the long, shallow slope from Qexp to Qnom over most of the battery capacity is why it's more reliable to count coulombs. if you don't mind being pretty far off over the main part of your battery's charge cycle, and just need to know when you have a certain amount of charge left for an orderly shutdown, ADC and resistor will be fine, though you will have to deal with input resistance and battery drain in your own way

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