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DeepSix

macrumors 65816
Original poster
Feb 4, 2022
1,220
1,208
Is this a false claim or is this true? If it's true then we all got sold on a false advertised product. And Im pretty sure reviews said the M4 Pro can perform just as explosive when on battery compared to plugged in.

Screenshot 2025-09-10 at 3.32.53 PM.png
 
Extraordinary claims require extraordinary evidence.

Everything from reviews to actual user tests shows Apple Silicon MacBooks run just as fast on battery compared to AC.
 
Extraordinary claims require extraordinary evidence.

Everything from reviews to actual user tests shows Apple Silicon MacBooks run just as fast on battery compared to AC.

Thanks, that's what I thought. I thought we were getting ripped off after reading that.
 
This is false. These devices are designed to be running off a battery. There are no performance drops or compromises when on battery power (when I got my M1 Max I tested this because I needed to see it for myself - the performance does not change at all between the different power modes). In fact, some models of at least Intel era MacBooks actually need the battery to maintain power delivery and can be flaky when run with no internal battery (I have run some older MacBook Pros with their batteries removed due to swelling as lightweight servers).

There's tons of evidence that refutes this guy's claims.
 
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