battery % going down while charging?

[lshirase]

my macbook has been plugged into the ac charger for about a week now...and it went down from 100% for 97% even though it was charging the whole time. is this normal? this happened to me before..but i just ignored it...

 

[meyer1131]

same thing

Yeahh i have the same laptop as you and the same thing is happening to me.

 

[christopher3071]

same here. might have something to do with the battery health, a tiny bit of cycling. not always good to have your macbook plugged in 24.7.365

 

[meyer1131]

ehh i only have it plugged in when im using it because thats what the apple store people told me. It saves the cycle count. I have had my macbook for a month and have a cycle count of 13.

 

[lshirase]

update...i put my macbook to sleep overnight (lid closed) and when i checked, it was at 96% now. i hope this is normal haha.

 

[mrtune]

Mine does it too. It's normal. The macbook won't charge if the power is above 95%.

While in sleep mode, the battery will drop a tiny bit naturally. If you let it sit all night it will drop a few percent. Unless it's dropped below 95% during that time, it won't charge. Nothing to worry about.