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> Most modern MacBook Pros actually have the ability to ramp up the CPU's draw when on AC power so high that even when plugged in, they will cause battery drain
by iSnow 13y ago
> Most modern MacBook Pros actually have the ability to ramp up the CPU's draw when on AC power so high that even when plugged in, they will cause battery drain
Sounds like a major design flaw. Imagine you want to go on a flight and do something really CPU & GPU intensive and afterwards discover you have drained your battery.
Apple should buy beefier power supplies if this is the cause of the problem - probably they are trying to shave 3% off the unit price by ordering whimpy power plugs.
- nwh 13y agoMajor? It's been that way since 2007 at least, it's just a side effect of the way they design their machines. It's not as if this is a recent thing that Apple has just introduced.
- mbell 13y ago> Apple should buy beefier power supplies if this is the cause of the problem - probably they are trying to shave 3% off the unit price by ordering whimpy power plugs. Apple has not historically been one to skimp on power supply costs, to the contrary the supplies they provide are some of the highest quality I've seen in terms of build quality and part selection. The actual problem is more one of form factor. Apple has a certain expectation for size/weight/usability of their laptop supplies and meeting those goals with a 150W supply just isn't realistic.
- dljsjr 13y agoThis hi-draw mode is actually only available when on AC power. Doing anything CPU and GPU intensive will obviously increase battery draw, but these exceptionally high CPU speeds are only possible when the MagSafe connection is active.