Battery replacement odd behavior

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MacBook Pro 15" 配备 Retina 显示屏 2015 年中版

2.2 GHz (Turbo Boost 最高可达 3.4GHz), 2.5 GHz (Turbo Boost 最高可达 3.7GHz), 或者 2.8 GHz (Turbo Boost 最高可达 4.0GHz) 四核 Intel Core i7 处理器，配备 6MB 共享三级缓存。

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Daniel Mazariego @poporobright

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发帖于: 2019年8月9日

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Battery replacement odd behavior

Hello IFIXIT community,

I recently bought the MacBook Pro replacement battery kit that IFIXIT provides to their customers so they can do Apple’s job at a cheaper price. I was able to install the battery with no issues at all.

But, after a day, while using my computer after calibrating the battery for better results I decided to restart the laptop for some testing not related to its battery life. Before I rebooted, the machine life was at 69% but after turning it back on, the battery was showing me a 6% battery life which is super odd and insane at the same time.

If there is anyone that experienced this with their replacement and/or noticed but went away later after constantly using the machine, please let me know. I am an IT guy myself, but I do want to make sure I am not the only one that has seen this odd behavior on a computer.

I hope that somebody can share any thoughts and or a solution to this. In the meantime, I will disconnect the battery adapter and put it back in just to see if it is just a mistake I made.

Hope somebody answers soon. Cheers community!!

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Please post a snapshot of CoconutBattery so we can see the batteries status 在已经存在的问题里加入图片

由 Dan 完成的 2019年8月10日

Hello Dan,

Thank you for commenting on my post. I have edited the content and the image should be now displayed. To me everything looks fine on the battery, also checked other battery apps while waiting for this response last night. Is there anything in mind that could be causing this?

由 Daniel Mazariego 完成的 2019年8月10日

@danj Today while using two different battery use checkers or whatever you want to call them, I noticed that they provide different numbers from the battery's charge for example:

The mac battery shows 73% and so does the app "Battery Monitor". While coconut battery shows 67% and the mac battery shows 73%.

Do you have any idea why this could be?

Thank you

由 Daniel Mazariego 完成的 2019年8月10日

@poporobright Coconut battery always shows a lower percentage except for when battery is fully charged.

由 arbaman 完成的 2019年8月11日

@arbaman - Correct! This is mostly do to the lag between the OS call to SMC from the app and its reply. Unlike the OS's native access to SMC.

由 Dan 完成的 2019年8月11日

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Dan @danj

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The CoconutBattery output looks good!

Its what I would expect. How about cleaning the MagSafe connections in case your one-wire sense line was not making good contact. Review this Apple T/N Apple Portables: Troubleshooting MagSafe adapters. Make sure the cable is not damaged in any way, also make sure you have a real Apple charger! There are many fakes out there that will damage your system OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth.

See if after cleaning the connections and if needed a replacement charger fixes things.

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Hey Dan,

Thanks for all the support. I got this mac charger from my tech company so I genuinely think it is a true mac charger. Also, I will clean the port and see if it keeps changing and or getting better while I continue to use it.

Will keep you posted .

Thank you

由 Daniel Mazariego 完成的 2019年8月10日

@poporobright If the Mag-Safe does not have an Apple logo stamped into both sides it is a knockoff and may damage your Mac

由 mayer 完成的 2019年8月11日

@mayer thank you for the info!

由 Daniel Mazariego 完成的 2019年8月11日

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Please post a snapshot of CoconutBattery so we can see the batteries status 在已经存在的问题里加入图片 — Dan
Hello Dan,

Thank you for commenting on my post. I have edited the content and the image should be now displayed. To me everything looks fine on the battery, also checked other battery apps while waiting for this response last night. Is there anything in mind that could be causing this? — Daniel Mazariego
@danj Today while using two different battery use checkers or whatever you want to call them, I noticed that they provide different numbers from the battery's charge for example:

The mac battery shows 73% and so does the app "Battery Monitor". While coconut battery shows 67% and the mac battery shows 73%.

Do you have any idea why this could be?

Thank you — Daniel Mazariego
@poporobright Coconut battery always shows a lower percentage except for when battery is fully charged. — arbaman
@arbaman - Correct! This is mostly do to the lag between the OS call to SMC from the app and its reply. Unlike the OS's native access to SMC. — Dan
Hey Dan,

Thanks for all the support. I got this mac charger from my tech company so I genuinely think it is a true mac charger. Also, I will clean the port and see if it keeps changing and or getting better while I continue to use it.

Will keep you posted .

Thank you — Daniel Mazariego
@poporobright If the Mag-Safe does not have an Apple logo stamped into both sides it is a knockoff and may damage your Mac — mayer

MacBook Pro 15" 配备 Retina 显示屏 2015 年中版

Battery replacement odd behavior

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