Well, I don't know about the battery. But I'll be in the loony bin pretty quick if I didn't get out on the bike and cycle my adrenaline junky battery at least monthly!
Since I've been sick for about a year, I have been carefull not to let my pingbattery bms kill my pingbattery. So I put it back on the charger long enough to completely balance it at least every two weeks. I'd rather store it full charged than worry about the bms draining down on cell. I wanted it to still be ready to ride because I do try to get at least a weekly short ride in, despite the illness. My lipo I have been storing at about 3.8v. Some of it not cycled since I raced last, more than a year. When I pulled it out to run a 24v ebike I got last winter, It seemed as good as when I stored it. It spent the winter stored in an old, not running refrigerator in the backyard. Who knows if it did something to my cycle life, but it didn't ruin em so far.
For those interested, I'm back! Feeling much better, and hoping to resume bike commuting soon.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.