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Just bought a Early 2015 MacBook Pro with a faulty battery, it only works with charger plugged in, but when looking at the cycle count it’s seems pretty low for a full replacement (258) Is there any way to reset the warning before I do the battery replacement which doesn’t look fun with the amount of glue they use on holding these in. Any help will be much appreciated I’ve tried a SMC reset but no luck
Bu iyi bir soru mu?
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You could try resetting the SMC but that won’t really solve the issue if the battery is gone.
How about getting a bit more diagnostics here to see where the problem is as it could be something more than the battery. Run this app CoconutBattery and paste a snapshot of the main window so we can see what it its telling us Adding images to an existing question
Sorry to say the charging logic has a failure if you look at the snapshot you’ll see the two clues the first is the charger is connected and the second is the ‘Charging with’ 0 Watts with your battery exhausted ‘Full Charge Capacity’ The logic is split across the DC-In board the sense part and the main logic board which has the switching MOSFET’s that sends the power to the battery. Basically, your logic board will need repair.
Bu yanıt yardımcı oldu mu?
Hi, thanks for the reply.
Ive added a pic to the original question
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Hi,
i thought before i bite the bullet and send it to my logic board repair guy I’d fit a new battery just to make sure, just arrived and fitted it laptop is now fully working again without the charger and when plugged in is charging at 22.1 watts turned out it was a faulty battery.
Robert Culton tarafından
Does the new battery come with a chip to count new battery cycles ?
Andy W tarafından
Yes, all good quality batteries have that.
Ben tarafından
The cycle count doesn't tell you how long the batteries were fully charged (laptop permanently plugged in). My 13" MBP Early 2015 had a low cycle count but the batteries were severely distended due to outgassing, resulting in a wobbly laptop and a bulged keyboard.
The battery removal process is tedious but feasible with an hairdryer and a PVC card (e.g. an old bank card or old credit card). Once you reach the battery connector, please tape it once disconnected to avoid accidental ESD damage.
Olivier Biot tarafından