<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div style="RIGHT: auto">A few days ago this was a topic dicussed at length about LiPo charging and storage practice.</div>
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<div style="RIGHT: auto">I learned a bit and thanks to all the posts sheading light on the topic...</div>
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<div style="RIGHT: auto">One question that I asked my local battery guy rewarded me with a response I didn't expect. Has anybody else observed this?</div>
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<div style="RIGHT: auto">Here is his claim/actual observation:</div>
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<div style="RIGHT: auto"><STRONG style="RIGHT: auto"><EM style="RIGHT: auto"><U style="RIGHT: auto">"If a LiPo is stored after a peak charge the voltage may tend to rise over time to as much as 5.0V+ for a single cell."</U></EM></STRONG></div>
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<div style="RIGHT: auto">After the discussion topic on here and discussing the issue with my battery guy, I have came to the conclusion that storing a LiPo battery is much safer at a lower voltage state (~3.9V/Cell) to prevent an inadvertant puff due to an unstable cell(s) climbing voltage over time. I recall the discussion about an unstable pack, but I don't recall any mention of the voltage climbing. Perhaps I missed it and it seems worth revisiting anyway.<VAR id=yui-ie-cursor></VAR></div>
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<div style="RIGHT: auto">Basically any LiPo battery stored over a 2 week period should be charged/discharged to a storage voltage or a nominal 3.9v/cell. Storage voltage opinons vary from 50%+ (~3.9v/cell+)</div>
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<div style="RIGHT: auto">Internet references show 50% charge = nominal 3.85V/cell)</div>
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<div style="RIGHT: auto">Additional thoughts on the peaked battery increasing in voltage over a longer period of time...???????????</div>
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<div style="RIGHT: auto">I just bought six new 5s-LiPo Packs and I'm new to this stuff... So what say you experienced folks?</div>
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<div style="RIGHT: auto">Larry Diamond</div>
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