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Cell Phone Li-ion battery tester
A two-LED tester built at Macalegin Electronics to read the charge on a cell phone battery at a glance, without reaching for a multimeter.
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3d-printacaccessibilityarduinoartastronomyaudiobatteriesbikebike-trailerblynkbsodbuildsbuttonscapacitorcarcell-phonechargingcircuitcircuit-boardconstructioncontestcostumedecorationsdesigndiskengineflywheelfunfunnyfusegamesgold-membershiphackhackadayhacksiotip-addresskerbalkidslaser-cutleapmotionlearnledli-ionlightlightsabermicrosoftmoviespaintparadepcbpinewood-derbyplexpneumaticspowerwheelspythonraspberry-pirecyclerelayremoterepairrepairsrgb-ledsrobotscouts-bsaspaceshipsparkfunstar-warsstemtemperaturetestingtoothlesstvusbvideo-gamewindowswirelessxboxxbox-livexbox-one
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3d-printacaccessibilityarduinoartastronomyaudiobatteriesbikebike-trailerblynkbsodbuildsbuttonscapacitorcarcell-phonechargingcircuitcircuit-boardconstructioncontestcostumedecorationsdesigndiskengineflywheelfunfunnyfusegamesgold-membershiphackhackadayhacksiotip-addresskerbalkidslaser-cutleapmotionlearnledli-ionlightlightsabermicrosoftmoviespaintparadepcbpinewood-derbyplexpneumaticspowerwheelspythonraspberry-pirecyclerelayremoterepairrepairsrgb-ledsrobotscouts-bsaspaceshipsparkfunstar-warsstemtemperaturetestingtoothlesstvusbvideo-gamewindowswirelessxboxxbox-livexbox-one