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Battery charge time going up not down!

Victor2020

macrumors newbie
Original poster
Jun 20, 2020
3
1
Hi everyone.
I have an old Macbook pro late 2008 unibody 15inch from new and I am very happy with it.
I have just replaced the battery (Not an apple original as I can not afford one!)
The battery is charging and everything I can see looks good (orange light on only 2 cycles, Battery normal etc) I have also reset the System Manager Controller (SMC).
I have discharged the battery and charged it again.
The problem I am having is that the battery charges to about 50% and then then wont go higher.
Also after that the battery charge time keeps going up from about 4hrs up and up to 12hrs or more.
I have searched the internet and can not find any other post about the battery charging time going up!
I am including a screenshot of the battery info in the system report.
Has anyone got an idea of how to solve this as it does not seem to be a fault with the battery that I can see.
Thank You all and Stay Safe
Victor
 

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hobowankenobi

macrumors 65832
Aug 27, 2015
1,501
507
on the land line mr. smith.
If this is a new battery...I would suspect it. There are lots of low-cost, low-quality batteries out there. Too often with batteries we get what we pay for.

It is the battery, the charger, or a small chance there is something going on with the DC-in Board. If you just put in the battery, odds are that is the issue.
 
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Victor2020

macrumors newbie
Original poster
Jun 20, 2020
3
1
Hi H
Have you looked at the jpeg I added to see if everything there looks correct?
Do you know from your tech knowledge if all the settings are correct.
I am still puzzled that nobody else here has had a problem like this with a non apple battery and the problems I have encountered.
I do understand that it is probably A : the battery B : the charger although I doubt that as I have 2 chargers and it is the same with both.
Or the DC-in Board, the link you sent me is for how to repair this part but not if there is any test you can do to see if that part is faulty?
First I would like to see if the problem is the battery so I am hoping someone here or yourself have any other tests I can do to find out if the problem is the battery and as I said I thought if the battery was faulty something would show up on my battery info jpeg
Thanks Victor
 
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iluvmacs99

macrumors 6502a
Apr 9, 2019
663
459
Here is the procedure that I used to calibrate my new battery that I bought from Amazon that wasn't an original Apple one. After the calibration, everything works.


If your battery is unable to be re-calibrated, then it is the battery's fault. There are many cheap knock-off batteries that are being sold as Apple replacements. Most of them don't work too well or at all giving you 50% capacity. Very few that does work like an original, but they are priced about 20% less than an original battery which mine happened to be for my MBP 2009 17".
 
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hobowankenobi

macrumors 65832
Aug 27, 2015
1,501
507
on the land line mr. smith.
Agreed about calibration. If it does not solve the issue, and if run time is not accurate (or very close), it would reinforce the notion the battery is at fault.

I have never seen this issue specifically first hand...likely because I have never used low-cost batteries. Always been OEM or NewerTech. I'm sure there are other good third party brands too.

Besides the actual cell quality and capacity, there is a board that is essential to function and monitoring. I have always wondered if low-end batteries have a high quality/reliable control board. I don't know...just skeptical. It does seem like generally, with batteries, there is a close relationship between cost and quality. I have seen many reports of cheap batteries functioning well, but only lasting a very short life....less than half of an OEM quality battery.

As for testing, I don't know of a procedure. Apple generally does not publish testing specs; they have a flow chart of what to replace to resolve an issue...At least this was the case when I was working at an Apple certified service center.

In this case it would likely be:

1. Replace charger
2. Replace battery
3. Replace DC-in board
4. Replace logic board

It's good you have two chargers, and have ruled that out. If the battery is warrantied, I would be trying to arrange a return/replacement.
 
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Victor2020

macrumors newbie
Original poster
Jun 20, 2020
3
1
Hi all
I have come to the conclusion that it must be the battery for now so I am sending that back.
I don't know yet if they will refund me or replace the battery but thanks for all the help here and I will post as soon as I have resolved the issue.
Again thank you both and Stay Safe
Cheers Victor
 
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NoBoMac

Moderator
Staff member
Jul 1, 2014
2,891
1,217
My $0.02... it's the battery.

I had the same model and none of the aftermarket batteries were worth a darn. Had three batteries I cycled through to keep the machine going. A couple of them showed manufacturing date on them in the system info: manufactured years before.

Since the machine is an antique, doubt you will find anyone that is making/selling new batteries. Just going to keep seeing stale batteries that have been on the shelf for years.

EDIT: nevermind. See OP posted while composing.
 
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