Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: lordcalvert on May 02, 2007, 08:17:05 PM

Title: battery life indicator
Post by: lordcalvert on May 02, 2007, 08:17:05 PM

recently i have been thinking some about how to hook up a red light to the battery so that when it gets low i know when to charge it.   HELP PLEASE!!

Title: Re: battery life indicator
Post by: ed1380 on May 02, 2007, 09:09:00 PM

my guess would be a comparator and a resistor at a certain value

Title: Re: battery life indicator
Post by: hgordon on May 02, 2007, 09:49:35 PM

Try -
    http://www.solarbotics.com/products/index.php?scdfa-250100084