Resolving the Directly Conflicting Battery Advice
I have been trying to be a good MBP - Retina owner, and I need to understand the conflicting batter advice.
A Level 7 (prestige points) in a thread titled, Macbook Pro Retina batter problem states: "They [the battery] do not suffer from the "Memory Effect" of Nickel Cadmium batteries. You need to let it run down ONCE so that it can calibrate where the endpoints of battery capacity are."
But then, in a thred titled, Can I leave my MacBook charged at night, a Level 9 says, quote: "You should avoid ever draining the battery completely, if you can. That's far harder on it than draining it down to 50% twice, recharging in between."
While the quote above says you avoid EVER draining the battery completely, another guy in the same thread says let it run flat ONCE A MONTH, quote: "Let the battery completely discharge and then fully charge it and leave it charging another hour or so after it says it's fully charged. Repeat this process perhaps once a month if you notice the battery not charging properly. This process helps the battery calibrate."
Then in direct contradiction to the paragraph immediately above, another post says, "If your MBP was made after June 2009, its battery never needed calibration or "conditioning" in the first place."
Okay. Some are saying run it flat once a month for conditioning, another says after 2009 running it flat is just about the only thing you can do to hurt a modern MBP battery?
What are the actual battery practices to follow for a healthy modern battery, because I sure as heck am confused now. Assuming you never want to run it flat if possible, what are the best discharge practices in terms of percentage of battery charge?
Thanks!
MacBook Pro