Leaving Macbook Pro Charging While in Use Most of the Day?

[DevAndy]

Is it bad for your battery to leave it charging at 100% while in use?

What is the most optimal way to retain battery juice?

 

[jg321]

Apple say:

https://www.apple.com/uk/batteries/notebooks.html

Mine is on my desk all day at work, plugged in. Rarely gets used on battery. Tend to full cycle it every month. Health and battery life is excellent after 18 months.

 

[T5BRICK]

Is it bad for your battery to leave it charging at 100% while in use?

It's fine. Just make sure you complete at least 1 charge cycle per month. Remember that 1 charge cycle does not mean running it down to 0% and then re-charging back to 100%.

 

[DevAndy]

It's fine. Just make sure you complete at least 1 charge cycle per month. Remember that 1 charge cycle does not mean running it down to 0% and then re-charging back to 100%.

What does a recharge cycle mean? I usually leave it on 24/7, charging it when I get home and during the night, while using it on the Subway.

 

[joe-h2o]

What does a recharge cycle mean? I usually leave it on 24/7, charging it when I get home and during the night, while using it on the Subway.

One cycle is a combined total of a full discharge and recharge. So it can be 100% > 0% > 100%, but that's the least healthy way to do it for long term battery condition.

One cycle is also going from 100% > 50% > 100% twice, which is a much more gentle way to use the battery - lithium ion cells do not like being deep discharged.

So, using the computer on battery and charging it up normally is usually more than adequate to maintain battery health.