Did you try diagnostic test at boot?New member here.
First off, thanks to all who have shared their experience and especially for followup responses.
I just replaced the OEM battery with this one from Amazon:https://www.amazon.com/gp/product/B0823SKWM3/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I was going to go with one from Rewa but the shipping charge gave me pause. This one has higher ratings than others on Amazon and for $42, I thought it was worth a try. I've replaced batteries on older Macbooks and iPads so I know it's a crapshoot to get a good one.
According to coconut battery, the battery is 775 days old and was made by Simplo.
It was a pain in the butt to remove the old battery so as a test, I placed a layer of saran wrap (it's all I had handy) between the two battery panels under the trackpad and the trackpad. I anticipate replacing the battery at some point so would like to have less trouble the next time.
One thing I came across was a suggestion to repeat the calibration process 5 times at least. Scroll down to the response from "admin": https://www.ifixit.com/Answers/View/442887/Correct+battery+clibration+after+replacement
Will post again in a few months.
Thanks. I had forgotten about that so just did. It gave me a battery may have issues message but that's probably because it's looking for an OEM battery.Did you try diagnostic test at boot?
I am afraid it will give you issues. You will have to discharge it and monitor the discharge / charge rates. You may find jumps in the cycles as well as degraded battery life. What most of the sellers on ebay and amazon do is to reset the controller so it shows 0 cycles. After that they cannot reseal the controller hence the error and the degraded performance. I have been through that experience many times.Thanks. I had forgotten about that so just did. It gave me a battery may have issues message but that's probably because it's looking for an OEM battery.
The laptop is running fine. I was just posting my experience so far.
That's good to know. Will have to watch.I am afraid it will give you issues. You will have to discharge it and monitor the discharge / charge rates. You may find jumps in the cycles as well as degraded battery life. What most of the sellers on ebay and amazon do is to reset the controller so it shows 0 cycles. After that they cannot reseal the controller hence the error and the degraded performance. I have been through that experience many times.
Amazon reviews are not indicative of anything since sellers can and do fill it with fake reviews. And the thing with batteries is that even the ********* batteries will work fine for a few months before failing. I'm also really skeptical that calibrating any more than once is really necessary (tbh ideally the battery should actually come pre-calibrated from the factory, but I doubt they'd bother with that). And you cannot trust any value reported to you – they can all be faked, from the manufacturer to the cell voltage, to the capacity. Hence why it's better to see how they change over time and with use.New member here.
First off, thanks to all who have shared their experience and especially for followup responses.
I just replaced the OEM battery with this one from Amazon:https://www.amazon.com/gp/product/B0823SKWM3/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I was going to go with one from Rewa but the shipping charge gave me pause. This one has higher ratings than others on Amazon and for $42, I thought it was worth a try. I've replaced batteries on older Macbooks and iPads so I know it's a crapshoot to get a good one.
According to coconut battery, the battery is 775 days old and was made by Simplo.
It was a pain in the butt to remove the old battery so as a test, I placed a layer of saran wrap (it's all I had handy) between the two battery panels under the trackpad and the trackpad. I anticipate replacing the battery at some point so would like to have less trouble the next time.
One thing I came across was a suggestion to repeat the calibration process 5 times at least. Scroll down to the response from "admin": https://www.ifixit.com/Answers/View/442887/Correct+battery+clibration+after+replacement
Will post again in a few months.
I'm well aware of fake reviews on Amazon. But you might as well assume that all MBP batteries on there have them too. It's a bit of a gamble any way you slice it. I look for reviews that are posted after some usage OR updated later. I try to update reviews 5-6 months down the line.
I wondered about gluing it back in too. It feels pretty snug in there anyway. I transferred the rubber strips from the from the top of the OEM battery to help. Not familiar with tesa tape.
I've been using a fan cooling app like Macs Fan Control or smcFanControl for years. My OEM showed no signs of swelling.
Just for your information I have 2 "new batteries" with the same message bought from eBay and eBay refunded me the money after I complained about them as this is a real issue (discharge/charge rate too). The Rewa battery does not show the error.It gave me a battery may have issues message but that's probably because it's looking for an OEM battery.
Swelling usually happens when people leave the laptop plugged in and charged 100% for long periods of time (order of weeks, usually they use it docked). It's well known that lion batteries will degrade rapidly when kept at such a high rate of charge. The resulting side-reactions, in addition to degrading capacity, will also produce gas as a byproduct.I've been using a fan cooling app like Macs Fan Control or smcFanControl for years. My OEM showed no signs of swelling.
Boot to Local Apple Hardware Diagnostic (D) and see what the test result is:Passes what?
sudo nvram internet-recovery-mode=DiagsModeDisk && sudo reboot
As a battery dealer and importer, I might be able to shed some light on this.
Dealers who want to sell cheaply or are simply too greedy offer replica batteries in the original housing, these are mainly manufactured in China. Then there are a few manufacturers who buy original cells, test them properly and put them in the original housing. Such batteries are usually really good, unless they are older models and the cells are older and have been stored for a long time.
Complete originals from the production of Simplo or SMP are not available on the open market, Apple has blocked these suppliers well.
The reviews seem unanimously positive (at least what I could make out through google translate)In mid-2020, we commissioned our exporter to build a special series of MacBook batteries for us, the requirement was simple: please do not pay attention to the price, buy the best battery cells that China has to offer and use them to build us different MacBook battery models. Produce a battery for us that is better than the Apple standard from Simplo or SMC.
Well, after a few weeks there is still no long-term experience, but the observation that not a single built-in or sold battery has been complained about. We are currently testing a high-end battery in the MacBook Pro Retina 15" from 2012, thanks to the connected cinema display, a lot of voltage is required in order not to protect the part.
So far, every battery, even in a new device, was three to five percent below the design capacity in the first 10 to 20 cycles. We cannot see this "normal" loss in our test, after 19 cycles it is still above the design capacity of 8,460mAh at 8,482mAh.
Another pleasant effect is the high charging current that this battery accepts, it is currently being charged with 46 watts.
Since we bear a large part of the higher production costs ourselves, the new CDX High Quality battery is hardly more expensive than the standard battery with the original cells.
You shouldn't buy the battery with the older original cells from me either. These are new and unused batteries, but the cells are old technology and were produced some time ago. The plan to have a better battery series built did not come from the desire to get longer runtimes / more capacity, but to get a more durable battery with newer cell technology and completely new material. The higher capacity is just a pleasant side effect.
Hey there how are you, I saw you post regarding ipropower battery replacement. I want to ask that how is that battery holding up? Is it still working? How was your experienc. I want to replace my battery too and only battery which is easily available to me is iProPower battery. Unfortunately I am not able to find any reviews online.I have a MacBook Retina 13" (Late 2012) running Catalina. Battery was having issues. Apple Store said its $199+tax for a new battery. The trade-in value for my MacBook is barely $250. So I got an "iProPower" from Amazon for $75. Just installed it today. *fingers crossed*
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