Cruising Sailors Forum Archive
Come to think of it, my starting battery was near dead last winter. 
In Response To: It measures OK for surface charge ()
I charge them in November, turn the master switches off, and don't touch them until May. I remember it read around 12 volts in May where as the house were each over 12.5(normal after the winter rest). I knew the starting battery was dead at that point, even though a charge would bring it up(for a while...).
I can tell the age of the batteries in relation to each other by their voltage if the rest period has been long enough. Just a year difference in battery age shows in many 100ths of a volt.
Messages In This Thread
- Battery freeze question
- As long as it holds say a 50% charge,
- It measures OK for surface charge
- Come to think of it, my starting battery was near dead last winter.
- Come to think of it, my starting battery was near dead last winter.
- It measures OK for surface charge
- Larry are you off shore power completely?
- As long as it holds say a 50% charge,