Leaving charger plugged in

[Supercell]

Hello,

I just bought my first rMBP, and I'm wondering if it's okay to leave the charger plugged into the wall plug? Will it harm the charger? Cause fire, etc?

 

[maflynn]

No problem at all - I do that and have since the Powerbook days.

 

[yjchua95]

Hello,

I just bought my first rMBP, and I'm wondering if it's okay to leave the charger plugged into the wall plug? Will it harm the charger? Cause fire, etc?

Once in a while, you have to drain the battery and charge it up.

And every month, calibrate it.

 

[saturnotaku]

And every month, calibrate it.

Not necessary according to Apple, at least not if you have a MacBook Pro from the last 5 years.

 

[Stunned Monkey]

Once in a while, you have to drain the battery and charge it up.

And every month, calibrate it.

According to this Apple support doc, newer macbook pro's with built in batteries do not require calibration:

http://support.apple.com/kb/HT1490

"Portables with built-in batteries
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article."

I'm assuming if the OP recently purchased his it would fall under this.

EDIT: Sorry saturnotaku...I was typing while you were posting!

 

[old-wiz]

I leave both iPad and MBP chargers plugged into surge protector at all times. I only connect to the iPad/MBP when the battery is low.

 

[snaky69]

Once in a while, you have to drain the battery and charge it up.

And every month, calibrate it.

The OP asked about leaving the charger plugged into a wall socket, not leaving it plugged into his/her computer.

And calibration is no longer necessary.

 

[PicnicTutorials]

Plugged in, once charged, the charging stops and the battery is left to drain. The charging doesn't kick back in untill the battery is drained a bit like 90 - 95% charged.

 

[mpantone]

No problem at all - I do that and have since the Powerbook days.

Yup. I've been an Apple notebook owner for over ten years now myself.

If there was any sort of fire risk, the chargers would have been pulled (like HP did a few months ago with their Chromebooks).

Since they haven't, I assume these are safe. After all, Apple has been selling notebook computers for about two decades. They would know if they were a problem.

I think the site operators here should really consider changing the name from MacRumors Forums to AppleOCD Forums. It would really be a more accurate description.

😀