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Magsafe MBP charger and MacBook
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Fresh-Faced Recruit
Join Date: Oct 2006
Status:
Offline
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Has anyone had problems using an MBP charger with a MacBook? Having both computers in the house, we've been using the chargers interchangeably. But the MacBook battery has been fried again (this is the second time), so I'm wondering if maybe there is more of a problem than previously recognised.
I read this post Magsafe - MacBook vs MacBook Pro
The 85W one will be fine on the regular MacBook. They both have the same voltage (24-24.5 VDC) output and that's what really counts.
If they weren't interchangable, the connection on the laptops themselves would be different.
I'm wondering if I should avoid using the MBP charger with the MB now... any suggestions?
Thanks 
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Mac Elite
Join Date: Jul 2003
Location: Body in London, mind elsewhere
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From my experience if i've had to use a MacBook charger on a MBP the charger has got very, very hot. More that when it's charging the MacBook. When using the MBP for the MacBook it hasn't felt any hotter than it normally does.
I don't use the MacBook charger for the MBP unless i really have to, but will use it the other way round. Not a scientific answer, but i've not had a charger fail on me (touch wood)
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Addicted to MacNN
Join Date: Jun 1999
Location: Las Vegas, NV, USA
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Offline
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There shouldn't be any problem. The wattage rating of a power supply refers to the maximum amount of power that it can provide. The connected device only takes what it needs.
A Macbook charger would get hot when connected to a MBP because the laptop is demanding more power than the charger can provide. The charger is "working" very hard.
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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I have used both chargers to charge the other device. Never had any problems at all. Obviously if you use the MB charger to charge a MBP you should sleep the MBP if you want it charged within a reasonable amount of time.
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Fresh-Faced Recruit
Join Date: Oct 2006
Status:
Offline
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Maybe I just received 2 faulty batteries so... It just struck me as a little odd that 2 failed, and I had been using the MBP charger with it. Probably a coincidence, but I'll avoid using the 'wrong' charger from now on unless absolutely necessary 
Thanks for the help
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Senior User
Join Date: Jan 2006
Location: Darien, IL
Status:
Offline
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This is weird that someone has stated that the charger got hot. I used my friend's MBP charger to power my Macbook for about 1/2 and hour, and it got the hottest I've ever felt, so hot, that I turned it off and even after a couple of minutes of it being unlugged/off, it was unbearable for me to place my hand on the bottom of the computer.
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BlacBook | 2.0ghz core duo | 2x320gb | 2gb ram | mba superdrive
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Posting Junkie
Join Date: Feb 2005
Location: 888500128
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Originally Posted by SLiMeX 
This is weird that someone has stated that the charger got hot. I used my friend's MBP charger to power my Macbook for about 1/2 and hour, and it got the hottest I've ever felt, so hot, that I turned it off and even after a couple of minutes of it being unlugged/off, it was unbearable for me to place my hand on the bottom of the computer.
The guy who said it got hot did it the other way round, which makes more sense - a 65W supply hooked up to a computer that pulls 85W gets hot.
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