What is the optimal battery limit for a MacBook?

[thirteenkai]

I use AlDente to limit charging to 50%. I mainly use the power supply at work, so I don't have to worry about running out of battery. Is 50% a good choice, or is 80% better?

[MatthiasKerbl]

Hi @thirteenkai,

Unfortunately, different research papers show slightly different results. Therefore, we do not recommend a single battery percentage as the best one for battery longevity. Apple recommends 80%, which is a good starting point. However, some research indicated even better results between 40 and 60%. With charge limits that low, you need to calibrate your battery regularly.

Best,
Matthias

[thirteenkai]

Thank you for your answer. I plan to limit it to 50% and calibrate once a week.