State of charge
How accurate is using resting voltage as a indicator of state of charge?
Forum Discussion
For whatever it's worth, I have found that if I disconnect the battery from everything for about 15 minutes, I get a fairly accurate measurement of resting charge. It's not as accurate as letting it sit for 24 hr., but I usually do this "quick rest" method when we are camping. So I can't disconnect it for 24 hr.
I developed the "15 minute test" by disconnecting the battery and taking readings with my voltmeter every three minutes. For the first 15 min. after disconnecting, the voltage kept going up. But the curve flattened out after 15 min. and stayed pretty constant for quite a while.
If anyone has different information, I would be very interested in hearing about it!
I developed the "15 minute test" by disconnecting the battery and taking readings with my voltmeter every three minutes. For the first 15 min. after disconnecting, the voltage kept going up. But the curve flattened out after 15 min. and stayed pretty constant for quite a while.
If anyone has different information, I would be very interested in hearing about it!
