# Excessive battery drain on Mac M4 (recent development)

**URL:** <https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641>\
**Category:** Bug Reports\
**Created:** [December 30, 2025, 6:38am UTC](https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641 "2025-12-30T06:38:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sravasti](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/sravasti/32/38159_2.png) [@sravasti](https://forum.cursor.com/u/sravasti)\
**Post date:** [December 30, 2025, 6:38am UTC](https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641/1 "2025-12-30T06:38:15Z")

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I have been using Cursor for almost a year now and started seeing this issue only recently (in the last few weeks). It seemed to have got even worse since I updated to Mac OS Tahoe 26.2 a few days back. I can see high Memory/ CPU usage but the battery drain is really severe. I am a bit surprised not many are mentioning this in Cursor forum although there is a very long thread in Github: [High Battery Drain on Mac · Issue #1703 · cursor/cursor · GitHub](https://github.com/cursor/cursor/issues/1703). The last post matches my experience. I don’t know which Cursor update this can be traced to since there are so many of them, sometimes daily. I kept hoping the next update will resolve it but no such luck. Wanted to check if anyone else has similar experience.

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**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\
**Post date:** [December 30, 2025, 7:48am UTC](https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641/2 "2025-12-30T07:48:51Z")

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Hey, thanks for the report. I’m seeing similar performance reports on Mac M4 with macOS Tahoe, so this might be tied to that specific hardware + OS combo.

Can we check a few things?

1. Test without extensions  
Run in Terminal: `cursor --disable-extensions`  
Does the battery drain still happen?

2. Process Explorer  
`Cmd+Shift+P` → “Developer: Open Process Explorer”  
Please take a screenshot when CPU/Memory usage is high, especially for `extensionHost` and `ptyHost`.

3. globalStorage cleanup (often helps performance issues)

4. Logs  
Help → Toggle Developer Tools → Console, then copy any errors you see.

Also helpful:

- Your Cursor version (Help → About Cursor → Copy)
- Your project/codebase size
- Which extensions you have installed

Share the results and I’ll take it from there.

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**Author:** ![sravasti](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/sravasti/32/38159_2.png) [@sravasti](https://forum.cursor.com/u/sravasti)\
**Post date:** [December 31, 2025, 7:57am UTC](https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641/3 "2025-12-31T07:57:09Z")

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Hi Dean,

Thanks a lot for reaching out. Surprisingly, I am not seeing the issue since this morning. Nothing changed i.e. no further updates of either Cursor or MacOS (that I am aware of anyway). I do realize I have couple of very long chats but I did not even clean up the storage or start a new chat.

I will keep an eye on this and will let you know.

-Sravasti

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**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\
**Post date:** [March 31, 2026, 7:58am UTC](https://forum.cursor.com/t/excessive-battery-drain-on-mac-m4-recent-development/147641/4 "2026-03-31T07:58:06Z")

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