Battery life & adapter

[JaneEyre]

Hi guys, just a small question. I use my MBA often with connection to the power supply while the battery is fully charged. Does this damage the battery quality or reduce the lifetime of the battery (in terms of battery cycles)?

I was wondering what was better for the battery, unlink the charger or keep it connected to the mac while I'm working in my office.

 

[Hellhammer]

It's suggested to run it on battery by time to time to keep the electrons moving

https://forums.macrumors.com/posts/9875442/

 

[JaneEyre]

Yes I know, I have calibrated the battery yesterday, and will keep doing that, but will it damage my battery or lower the lifetime if I use it on the adapter for a couple of days?

 

[alan111]

It's suggested to run it on battery by time to time to keep the electrons moving

https://forums.macrumors.com/posts/9875442/

Thanks for the link. It was very helpful.
So just to be clear... it is not detrimental to the battery's health to run the computer plugged into the charger, as long as the battery is used 2-3 times a week?

Coming from a PC, I always thought the opposite. I thought that leaving it plugged in all the time was what killed the battery and that running on battery was the health way to maintain it...

 

[JaneEyre]

The link does even give me the answer to my question

This indicates that it has stopped charging your battery and you are now running on A/C power with a fully charged battery. It will not overcharge your battery. It's also perfectly safe to let your Mac notebook sleep with A/C plugged in.

Bottomline its better to keep working on AC power than to discharge the battery because after 750 recharges the battery will become weaker. Do i get this right?

 

[TSE]

Most optimal usage would be to use your MacBook Air on AC Power 24/7 except for once every two weeks or so drain the battery completely.

 

[Hellhammer]

Bottomline its better to keep working on AC power than to discharge the battery because after 750 recharges the battery will become weaker. Do i get this right?

It will get weaker all the time but after 1000 cycles, it should have at least 80% health. It's won't drop in one night so after 500, it should be at 90% etc.

 

[JaneEyre]

Most optimal usage would be to use your MacBook Air on AC Power 24/7 except for once every two weeks or so drain the battery completely.

Very nice to hear, because then I'll keep the mac on AC as much as possible.
Thx!