I can assure you that my mbp fluctuates 95-100% while on charge
that falls under the "rare cicumstances it draws power while plugged in"
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82% battery on Mid-2012 MBP 13''
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that falls under the "rare cicumstances it draws power while plugged in"
btw if it's a good thing to keep the electrons moving once in a while, to which % is recommended to drain the battery before recharging'?
I mean, every 2 days I should drain the battery to preserve the battery, should I drain it empty? 50% 70% 80%???
I mean, every 2 days I should drain the battery to preserve the battery, should I drain it empty? 50% 70% 80%???
There is no recommended percentage. Read post #23, as well as the Battery FAQ, particularly the section on AC POWER.
I've read it, the problem there is no % recommended. Does this mean nobody knows? Because 4-5 times a day I disconnect the power to move the mbp from a place to another while running (I know I shouldn't do that for hdd issues...), are these 1 min battery drains sufficient? if not, what is sufficient?
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where are you getting these figures?
you should do at least one cycle (100 to 0 or 100-70-100-30 etc.)
its no problem to disconnect and move your place...
just use your mbp as you want, don't hesitate to enjoy... or replace your battery and then enjoy
i read so many "battery-concerning-topics" and in one of them i read the above mentioned numbers...
its no problem to disconnect and move your place...
just use your mbp as you want, don't hesitate to enjoy... or replace your battery and then enjoy
i read so many "battery-concerning-topics" and in one of them i read the above mentioned numbers...
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No, it's because there are no specific recommended percentages. Anyone who claims specific percentages are only making up their own recommendations.
If you've read the FAQ, you wouldn't be asking the question, as it's directly answered in the AC POWER section. No, running on battery for 1 minute is not sufficient usage to exercise the battery. Please read the recommended answer already provided.
It's also perfectly safe to move the MBP while running, as long as you don't jar it suddenly or bang it against something. For MBPs with SSDs, even that isn't an issue.
how can you say a discharge of 1-2% isn't enough when you (we, everybody) doesn't know HOW MUCH IS ENOUGH. this does not make sense
I could ask you, is a discharge of 10% enough? 20%? 30%?
p.s. I'm not trying to be an as.shole, I'd like to understand....
Your answer has been given. If you elect not to read it or agree with it, that's your choice. You come asking for advice, then argue with those who provide factual answers? It sounds like you're more interested in arguing than in finding answers.
I'll try and answer your question.
Nobody knows exactly how much is enough because Apple has not published this.
But we can deduce how much is not enough in a round about way.
You will notice if say your battery is at 98% and you use it on battery power a few minutes until it gets to 96%, then put it back on the charger it will usually just sit there at 96% and not charge any further. Apple does this to prevent these short charges/discharges over and over from the usage you described of just unplugging to move around the room. Normally the battery will not begin to charge again until it gets down below 93-95% or so.
Okay, so knowing what I just described, you will need to use the Macbook on battery power to get it down below around 93% to make the battery charger kick in at all. So if the objective is to "keep electrons moving" as Apple says, then we know you need to run down below around 93% to make the charger come on and "move electrons".
So we can conclude a 10% run down to around 90% would ensure the charger runs a bit when you plug it back in and tickles the electrons like we want.
Whether running down more to 80% or 70% etc. is any better, I have no idea, but we can conclude you want to go at least down to around 90%.
Is it always 100% plugged in or do you move it around some to use it elsewhere? When I'm home I'll take mine to the living room to use for a while. If you do something like this, even just once a week, I think that's enough to keep it all working fine. Don't think too much into it, just enjoy it and buy a new battery in a few years.
I'm sorry but "discharge SOME ammount of battery" IT'S NOT a factual answer
I'll try and answer your question.
Nobody knows exactly how much is enough because Apple has not published this.
But we can deduce how much is not enough in a round about way.
You will notice if say your battery is at 98% and you use it on battery power a few minutes until it gets to 96%, then put it back on the charger it will usually just sit there at 96% and not charge any further. Apple does this to prevent these short charges/discharges over and over from the usage you described of just unplugging to move around the room. Normally the battery will not begin to charge again until it gets down below 93-95% or so.
Okay, so knowing what I just described, you will need to use the Macbook on battery power to get it down below around 93% to make the battery charger kick in at all. So if the objective is to "keep electrons moving" as Apple says, then we know you need to run down below around 93% to make the charger come on and "move electrons".
So we can conclude a 10% run down to around 90% would ensure the charger runs a bit when you plug it back in and tickles the electrons like we want.
Whether running down more to 80% or 70% etc. is any better, I have no idea, but we can conclude you want to go at least down to around 90%.
this makes more sense...thanks
First, I didn't say "discharge some amount of battery", and second, it's obvious you still haven't read the answer that was given, which is in big bold text.
If there is an answer that says in % and not with words like "some, a bit, a little" I apologize, I can't find it, would you be so kind to help me find it?
That section states:
You will not find an accurate answer that states a recommended percentage, because there IS no recommended percentage. Just run on battery periodically as already described.
Do you have a source for this part? I have never seen anything from Apple suggesting "several hours".
would you say running it to 50% every 2-3 days is enough?
I don't know how batteries work, does discharging half a battery means there are half of the "working electrons" not moving?
I mean like an official Apple support document as a source. Not some anonymous "Applecare Support".
As you know, we often see wrong information posted here as a result of things Apple support staff tells users over the phone.
I suspect if Apple wanted the battery run down "several hours" they would state that in their battery support page.
So if you do have something official from Apple you could post on this, it would be helpful.
It came from AppleCare support, as stated, not from the Apple website.
Everyone is getting far too hung up on trying to find a specific number. There IS no recommended exact percentage or recommended specific time frame. Why is that so difficult to understand? Just run on battery power periodically to keep the battery healthy. Battery science is not exact, just like battery readings are not exact. You're overthinking it. It's really quite simple. I'll say it again:
Run on battery whenever you need to and plug it in whenever you can. You can plug or unplug any time you need to, regardless of the charged percentage, and you never need to completely drain your battery. Just make sure you don't run on AC power exclusively, as your battery needs to be used regularly to stay healthy.
Yes, I would say that's enough.
No, it doesn't.
As already stated, Apple has never recommended specific percentages or specific time frames to run on battery, so you're not going to find such a statement on Apple's website. It's not a situation that requires specifics.
I'm familiar with that and discharging "every few days" for "several hours" is not even close to what that support link says, and that is why I inquired if there was more definitive official information from Apple. Looks like there is not and the post is just based on some anecdotal report from an unknown Apple support technician.
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Understood, and I don't disagree, but perhaps presenting anecdotal information from some unknown Apple support technician in your FAQ as if it is gospel does lead to confusion. Particularly when it diverges from what the official support document says. Just a suggestion.
The AppleCare support statement doesn't diverge from the official support document, which is also intentionally vague:
I could ask:
Which model and configuration of notebook?
What apps and settings are being used?
How long is the commuter on the train?
How much was the battery charged before getting on the train?
Did the commuter plug in at any time while on the train?
Did the commuter have the notebook shut down or in sleep mode before getting on the train?
Etc., etc., etc.
What apps and settings are being used?
How long is the commuter on the train?
How much was the battery charged before getting on the train?
Did the commuter plug in at any time while on the train?
Did the commuter have the notebook shut down or in sleep mode before getting on the train?
Etc., etc., etc.
The fact is, it's a general idea of running part of the time on AC power and part of the time on battery. Unplugging for 1 minute, then plugging back in obviously doesn't reflect the intent here, but there is no specific magic formula. That's why neither the Apple site nor the AppleCare support comments are specific. They both support the general idea that you shouldn't run exclusively on AC power.