At the end of my post (below) is part a discussion I had about 6 years ago with a Trojan Battery engineer. It was part of deciding how to handle my large house bank of flooded cell batteries during the boating off season when the boat was idle during part of the winter months.
Not being a chemist, but with some physics background, the comment below 'Batteries do not like extended periods of latency (no hard data,…just based on years of dealing with customers and their applications)' makes some sense to me. I think a middle ground for lead acid batteries (flooded or AGM) during periods of latency would be to charge them fully and disconnect so no source of discharge possible. Then periodically put them through a discharge/charge cycle. I have always been told by Sr battery Engineers that long term floating of wet batteries shortens their life. I have always searched for supporting data in the industry without luck. If that's true, despite no supporting data, the higher float voltage is definitely worse, more heat, more degradation. I would select 13.5V for float if you must float charge them. Yes,…optimum life is achieved by disconnecting batteries in the offseason and then accounting for self discharge through a charge administered every 3-6 months. My personal perspective is that battery life is further optimized if a cycle is put on the batteries prior to charging. Batteries do not like extended periods of latency (no hard data,…just based on years of dealing with customers and their applications).
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Flatwater Electronics
www.flatwaterfarm.com
"Neurosurgery for computer looms."
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Flatwater Electronics
www.flatwaterfarm.com
"Neurosurgery for computer looms."
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Posted by: John Acord <jcacord@gmail.com>
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