Correct battery clibration after replacement

"S W

@avanteguarde


Rep: 46.7k




7


55


91"

Apple no longer recommends “calibrating” batteries on Unibody MBs or newer. The batteries are smarter now.

"I have the same problem, slightly different parameters. Factory battery didn’t offer even 90 minutes of run-time and would suddenly die, so I wanted to replace it (laptop was purchased from OWC). I also managed to wrestle a replacement battery from them as this used laptop did NOT provide the battery life they said it did…. but it was a HUGE fight… System Reports “Service Battery”. They had me chase my tail for a while, making me run that useless coconut battery app… so I jumped through all the hoops they required (hoping I’d just go away) but I’m a tech and persisted through it all.

The replacement battery shows 1% charge… I think it came with about 5-9%, OS 10.13 shows AC 85W adapter is connected, I can see ALL battery info in System Profile, but the NEW battery is “Not Charging” and “Replace Now” message is also present .

No SMC, PMU or PRAM etc resets change the status. The AC adapter is orange to suggest the battery is charging, but it never does. Either OWC sent me a door-stop instead of a new replacement battery OR there’s something wrong with the PMU hardware of the logic board. No amount of “typical apple keyboard witchcraft” has worked to solve this problem. Putting the old battery back in, and it works just as it always has (poorly)… says it has a long run-time, but dies prematurely, suddenly and without warning about 70min into use. This will be the last apple laptop ever in my household.. already moved away from iPhones 3 years ago… so this next move with their generation after generation of faulty laptop batteries wasn’t entirely unforeseen in driving me away.

I agree with others as well on the topic: what a ridiculous process one must endure to replace a component we KNOW will need replacing in 3 years at MOST… lets all just be thankful Apple doesn’t spec and commision the mfg of batteries in Tesla cars or electrification of the automobile would FOREVER elude humanity :-/"