On Dec 23, 2012, at 5:06 PM, objectwerks inc wrote: > On Dec 22, 2012, at 11:19 PM, "Dinse, Gregg (NIH/NIEHS) [V]" > <[email protected]> wrote: >> >> I thought the number of power cycles was the most important factor in >> determining when a battery would need to be replaced. This is why I was >> asking about the length of time between charges. If I charge the iPad each >> night, but the battery would actually last for a week without recharging, >> won't the battery need replacing 7 times sooner? I'm guessing that it won't >> really be 7 times sooner, but you get my point. Or is that just a myth? > > I don't know the details, but that is part of it. Depends on the exact > battery chemistry. I've read (don't know how valid it is) that cycles that > are not complete cycles (ie, recharging after 10% depletion) doesn't count. > I don't know. > > But the iPad I only charge when it gets down to 20-40% or so. So not every > night as it seems to last a long time. But the iPhone I do nightly. My 5 > year old regular 1st gen 2G iPhone, though it doesn't get that much use now > (my son uses it for games like an iPod touch kind of), still holds a really > good charge and the phone got used regularly, and charged nightly, for over 2 > years, and intermittently since. I wouldn't overly worry about it. > > Chad
Hi Chad, OK, that's good to hear. Thanks for the help. Gregg _______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
