Good day to all. I'm just starting a project which is powered by a 12V 18AH AGM Lead=20 Acid battery. The customer greatly desires a display that shows the=20 amount of charge remaining in the battery. I remember looking at this long ago and concluding that it was=20 difficult to do when the battery temperature varies greatly above and=20 below room temperature. I'm hoping that someone 'out there' knows of=20 some technology that does this. Can anyone suggest either a simple method for me to do this myself=20 or, better yet, point me towards an already existing off-the-shelf=20 solution that I can purchase? Quantity is low - only a few dozen units. Many thanks! dwayne --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .