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Apple Explains New iPad's Continued Charging Beyond 100% Battery Level

Well, then they should have pegged it at 99% until it truly reaches 100%.
 
baryon said:
I'm pretty sure the MacBooks do that too.
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Quite right sir, check out the MacBook's charge in System Profiler/Information and you'll see it never hits 100%, it's been like this for a few years now, I've had the same battery in my MacBook Pro, done about 150 cycles without a hitch... same for any Apple device.

It will run out of "puff" eventually of course, as do all batteries, but it's much better than boosting it to 100% and frying it
 
WannaGoMac said:
So this seems to be official confirmation that keeping iOS devices plugged in all the time doesn't hurt long term battery life... This has been hotly debated for years!
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It has? It would be a pretty stupid design if it worked any other way. And this charging behaviors can be easily tested with any kind of meter such as a Kill-a-Watt. I wouldn't think such an argument would last very long if anyone bothered to test it.

Taking this further, I'm sure this also applies to any Li-Ion battery-powered device Apple makes, including their laptops, iPods, etc.
 
baryon said:
I'm pretty sure the MacBooks do that too.

Just out of curiosity: why can't the electricity from the charger simply bypass the battery and power the device directly once it's fully charged? That way, the battery would not discharge, and would not need to charge/discharge constantly, no?
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From what I can tell. This is what I see with all my Apple Devices.
 
Classic

This was a classic Apple response. Let all the rumors swirl, and then calmly explain the situation and why. Poof. Problem all gone

This is why I love this company. They only open their mouths when they have something important to say. And they usually get it right the first time
 
But NO! There must be controversy about the new Apple product!! It gets too hot! It over charges! Its thicker and heavier! It manufactures them in poor conditions! 4G only works in the US! Apple only updated the screen=FAIL! Many iPad 2 cases/smart covers don't fit! I found some dead pixels/light leak=quality assurance is going downhill! What's with the name, the NEW iPad? What happened to the iPad 3! AAAAHHHHHHHHHHHHHHHHH!!!!!

/s
 
Provide information before it becomes an issue. Don't tell me you didn't already know! We're not idiots, we can handle the truth!! Do it proactively and eliminate batterygate, heatgate, (or antennaegae, or ... 'what's next')

Pro-active .vs. re-active.
 
cube said:
Well, then they should have pegged it at 99% until it truly reaches 100%.
Click to expand...

Except that when it reaches 100% then it starts to discharge right away, thus never actually getting to 100%. Its always around 99% =/- 1%. The point is the OS displays 100% when you can expect to get the advertised life of the battery.
 
Mad Mac Maniac said:
But NO! There must be controversy about the new Apple product!! It gets too hot! It over charges! Its thicker and heavier! It manufactures them in poor conditions! 4G only works in the US! Apple only updated the screen=FAIL! Many iPad 2 cases/smart covers don't fit! I found some dead pixels/light leak=quality assurance is going downhill! What's with the name, the NEW iPad? What happened to the iPad 3! AAAAHHHHHHHHHHHHHHHHH!!!!!

/s
Click to expand...

I've been testing with the new iPad at work (we do iOS apps), and it does get noticeably warmer. "Hot"? No "Burninating"? No. But definitely warmer.
 
cube said:
Well, then they should have pegged it at 99% until it truly reaches 100%.
Click to expand...

Makes sense.

Especially considering if people plug out the iPad the moment it displays 100%, they won't get the full 10-hour use out of it. So, they'll then be (wrongly) complaining that the battery life isn't as advertised.
 
cube said:
Well, then they should have pegged it at 99% until it truly reaches 100%.
Click to expand...

Step 1: re-read the article
Step 2: ask an engineer friend what the article means, or do your own research.
Step 3: questions ? goto Step 1 : exit( ok )
 
i.mac said:
Step 1: re-read the article
Step 2: ask an engineer friend what the article means, or do your own research.
Step 3: questions ? goto Step 1 : exit( ok )
Click to expand...

I think your expectations are a bit high if you think the original poster is going to be able to understand a ternary operator in your How-To...
 
MacRumors said:
Tchao notes that users can expect 10-hour battery life on the new iPad regardless of when in that trickle charge/discharge cycle they unplug their device, and that Apple intentionally displays the battery level at 100% throughout that cycle so as to not confuse consumers who might otherwise think their device is not completing charging correctly.[/url]
Click to expand...


I guess this is similar to what current macbooks do except the macbooks show the percentage fluctuate?
 
I think post #38 sums it up. When the device shows 100% you're going to get the advertised battery life out of the product. At that point the actual charge of the battery may be anywhere from 98% to 100%. If it happens to be at the low end, you're going to get the advertised battery life, at the high end you get a bonus. This makes that extra cycling transparent to the user except that depending on where you are in the cycle, you may see 100% on the indicator for a minute or maybe 5-10 minutes.
 
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