http://www.instructables.com/community/How-to-determine-remaining-hoursdays-for-a-AA-bat/
Hi guys, I am building a low battery indicator which lights up a red led when the voltage remaining is 2 days before the battery dies. The device draws about 1ma all along and 50ma for about 10 seconds every 6 hours. So how do I check when the battery would have enough voltage to last for 2 more d…
By: kurtselva