SailNet Community - View Single Post - Voltage puzzle
Thread: Voltage puzzle
View Single Post
post #7 of Old 05-31-2012
Senior Member
denverd0n's Avatar
Join Date: Jun 2008
Location: Tampa, FL
Posts: 1,223
Thanks: 0
Thanked 37 Times in 37 Posts
Rep Power: 9
Re: Voltage puzzle

Actually, the "resting" voltage of a lead-acid battery is quite a good indicator of its state of charge. It needs to be completely disconnected from any charging or discharging source for at least 12 hours, though, and 24 hours is better. Most people, however, check the voltage far too soon after charging or discharging to get useful information.

If you are saying, davidpm, that after 24 hours with absolutely no charging or discharging, the battery voltage was 12.9, then it is either very nearly fully charged, or your voltage meter is not reading accurately.

Last edited by denverd0n; 05-31-2012 at 09:06 AM.
denverd0n is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome