charging macbook pro 13 inch

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isit it ok to continuously charge the macbook pro 13 inch, or will it begin to weaken the battery and make less battery life?
 
When it's at 100% let it drain until it prompts you to plug the A/C adapter in. If you frequently charge it when the capacity is at say for example 60% then you'll find that the health will start to wear down. My Macbook now only fully charges to 98% for that exact reason. :)
 
When it's at 100% let it drain until it prompts you to plug the A/C adapter in. If you frequently charge it when the capacity is at say for example 60% then you'll find that the health will start to wear down. My Macbook now only fully charges to 98% for that exact reason. :)

Actually it's better to charge modern batteries when they still have a fair bit of charge in them, rather than running them down completely.

It's probably not the best idea to constantly use it whilst plugged in, every so often you should let the battery get some decent use. Plenty of people have ruined notebook batteries by leaving them plugged in all the time (or doing frequent on-off charging).
 
Do the battery have expire date?

So even if i take out the battery and use the A/C adapter all the time. Does the battery will still wear down?
 
Do the battery have expire date?

So even if i take out the battery and use the A/C adapter all the time. Does the battery will still wear down?

the laptop will run of the mains power when it is at 100% charge. it will not be charging and discharging the battery. also i wouldent do that as the plug could get nocked out and this would do more damige than it will prevent.
if you are going to leave it pluged in, it is advised to discharge the battery and fully charge it once a month (this can be found on a apple page about exstending battery life).
the only thing i will be avoiding when i get my mb is doing very short cycles like draining it to 90% then charging it again.
 
I've abused my MacBook battery for the past 3 years by leaving it plugged into the mains most of the time. It still holds charge for 2 hours, so I would not worry too much..
 
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