Bought a refurbished MacBook Pro (15-inch, 2017) with a new battery. But it turned out that it only lasts 1 hour from the battery, although the capacity is 6916 mah. Why is that? What should I do?
MacBook Pro 15″, macOS 11.1
You should perform an SMC reset, possibly more than once, to be sure the SMC can properly estimate the charge level.
Reset the SMC of your Mac - Apple Support
if the problem persists, a battery with only 18 charge cycles that lasts only an hour is likely defective.
You can use it on power adapter almost all the time, or try to find another battery.
the quality of after-market batteries is generally terrible.
You should perform an SMC reset, possibly more than once, to be sure the SMC can properly estimate the charge level.
Reset the SMC of your Mac - Apple Support
if the problem persists, a battery with only 18 charge cycles that lasts only an hour is likely defective.
You can use it on power adapter almost all the time, or try to find another battery.
the quality of after-market batteries is generally terrible.
If it's an aftermarket battery, it might not work properly. The capacity is something that's reliant on the onboard diagnostics, and there's a decent chance that it's not accurate with your battery.
> When you format text as Program text, forum software treats it as one string, on one line, and it is unreadable:
Bought a refurbished MacBook Pro (15-inch, 2017) with a new battery. But it turned out that it only lasts 1 hour from the battery, although the capacity is 6916 mah. Why is that? What should I do?
> When you post a picture of text, instead of copying the TEXT and pasting the text, only native readers of your language can help you, because pictures can not easily be auto-translated.
Sorry, I'm new in this
Here is screenshot on Eng
Thanks for feedbak
Battery problem (Macbook Pro, 15', 2017)
