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Discussion in 'MacBook' started by mgpg89, Apr 20, 2015.
Simple question, really.
It should be charged significantly faster than other MacBooks, right?
Why would it charge faster than other Macbook's?
I doubt it will be much faster than other macbooks.
Macbook 12": 39.7 Wh battery - 29 W charger (39.7/29=1.32=1 hr 21 min)
Retina Macbook Pro 13": 74.9 Wh battery - 60W charger (74.9/60=1.24=1 hr 14 min)
So it might actually be slower.
It won't charge as quick as what i calculated it to though, as typically the last 20% charge of any battery is significantly slower. But this should apply equally to all Macbooks.
I causally tested this last week. These numbers are not exact, but from my experience my rMB charges at about 1% a minute when my laptop is open and charging. When it's closed it's almost 2% a minute. Not sure how fast if the machine is shut off.
Overall, it's the same feel as my MBA and it's certainly charges fast enough.
Did you guys do any specific sort of a first long charge after receiving your macbook and using it for the first time? or just plugged it in and used it at the same time, no worries?
Here's what 9to5Mac says:
"In terms of battery life, Apple promises up to 9 hours of wireless web usage and up to 10 hours of iTunes playback. In my actual (multitasking-heavy) usage, I measured 4 hours 35 minutes between 100% to 2% during continuous usage. Under the same use, the system said to expect 3 hours 57 minutes until a full charge was reached from 2%, although in practice only required 2 hours 22 minutes to reach 100%."