Lagging when its on battery but works better connected to power

Question 1

2 crwdns2873741:0crwdne2873741:0

MacBook Pro 16" 2019 crwdns2933315:02crwdne2933315:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

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masiku 3 agoKul 2, 2026

commented masiku 3 agoKul 2, 2026 crwdns2933505:0crwdne2933505:0 DanJ

Question 2

2 crwdns2873741:0crwdne2873741:0

iFixit Battery Performance Issues after updating to Tahoe OS?

MacBook Pro 16" 2019 crwdns2933315:02crwdne2933315:0

Rich W

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Yan 25, 2026

commented Yan 25, 2026 crwdns2933505:0crwdne2933505:0 Rich W

Question 3

2 crwdns2873741:0crwdne2873741:0

A2141 Diagnosing strange random crashes

MacBook Pro 16" 2019 crwdns2933315:02crwdne2933315:0

Allan Binderup

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Yan 19, 2026

edited by author Yan 19, 2026 crwdns2933505:0crwdne2933505:0 Allan Binderup

Question 4

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Replace the thermal grease/paste

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933315:03crwdne2933315:0

Aivaras Krupauskas

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Yan 14, 2026

commented Yan 14, 2026 crwdns2933505:0crwdne2933505:0 Aivaras Krupauskas

Question 5

2 crwdns2873741:0crwdne2873741:0

After replacing the battery, my computer does not work.

MacBook Pro 16" 2019 crwdns2933315:02crwdne2933315:0

livfe 6,7crwdns2936485:0crwdne2936485:0

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Yan 6, 2026

commented Yan 6, 2026 crwdns2933505:0crwdne2933505:0 livfe

Question 6

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MacBook does not enter safe sleep after battery replacement.

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

jimmysofat6864 309

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Sun 14, 2026

edited by author Sun 14, 2026 crwdns2933505:0crwdne2933505:0 jimmysofat6864

Question 7

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Trackpad Flex Retention Screw Standoffs Torn Off the Logic Board

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

N'w 9, 2025

answered N'w 9, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 8

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Stuck in DFU mode

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

N'w 8, 2025

commented N'w 8, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 9

1 crwdns2930801:0crwdne2930801:0

Weird: Battery won’t charge

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Huk 26, 2025

commented Huk 26, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 10

1 crwdns2930801:0crwdne2930801:0

LCD is finished, what are the options if any?

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

livfe 6,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Huk 22, 2025

commented Huk 22, 2025 crwdns2933505:0crwdne2933505:0 livfe

Question 11

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Where are the microphones located?

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

oldturkey03 844,9crwdns2936485:0crwdne2936485:0

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Huk 17, 2025

answered Huk 17, 2025 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 12

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PROBLEM with screen image.

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Huk 17, 2025

answered Huk 17, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 13

1 crwdns2930801:0crwdne2930801:0

Battery issues or something else?

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Nhl 28, 2025

commented Nhl 28, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 14

1 crwdns2930801:0crwdne2930801:0

MacBook turns off randomly during high CPU load after battery replace

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

oripaamoni

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Nhl 27, 2025

answered Nhl 27, 2025 crwdns2933505:0crwdne2933505:0 oripaamoni

Question 15

2 crwdns2873741:0crwdne2873741:0

Is this problem likely to be fixed by replacing the trackpad?

MacBook Pro 16" 2019 crwdns2933315:02crwdne2933315:0

Rasmus Johansson 211

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Nhl 27, 2025

commented Nhl 27, 2025 crwdns2933505:0crwdne2933505:0 Rasmus Johansson

Question 16

1 crwdns2930801:0crwdne2930801:0

battery not detected ,fan at 100% spin,lagging

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Nhl 27, 2025

answer edited Nhl 27, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 17

1 crwdns2930801:0crwdne2930801:0

Why does my monitor turn off when I plug in this cable?

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Nhl 15, 2025

commented Nhl 15, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 18

4 crwdns2873741:0crwdne2873741:0

Spacebar is stuck, pressed down

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933315:04crwdne2933315:0

Bogdan Tudor

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Nhl 15, 2025

answered Nhl 15, 2025 crwdns2933505:0crwdne2933505:0 Bogdan Tudor

Question 19

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I ripped a connector, which one is it and am I screwed?

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

Boy den Hartog 11

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Nhl 13, 2025

commented Nhl 13, 2025 crwdns2933505:0crwdne2933505:0 Boy den Hartog

Question 20

1 crwdns2930801:0crwdne2930801:0

Replaced battery . Laptop still not working

MacBook Pro 16" 2019 crwdns2933313:01crwdne2933313:0

DanJ 498,1crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Nhl 11, 2025

answer edited Nhl 11, 2025 crwdns2933505:0crwdne2933505:0 DanJ

crwdns2944620:0MacBook Pro 16" 2019crwdne2944620:0

MacBook Pro 16" 2019 crwdns2934277:0crwdne2934277:0