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I've installed Elementary OS on a Macbook late 2009 in place of the High Sierra that had issues (sudden and frequent reboots), Now it works well, I like the look, but the battery that previously had about 20 min autonomy, drastically diminuished in a few days, now it's 1%, in practice it must be continuosly powered. In terminal lshw shows unknown battery, I wonder if the battery is OK only Elementary is unable to recognize it or is it ruined definitely. If the battery is ruined, I could buy another but surely don't want to ruin it too. Thanks in advance for any help

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  • macOS and Linux handle power management tasks very differently. Because Apple controls the full stack of their hardware and software, they can squeeze more life out of a battery charge. Linux generally operates with defaults and does not power down unused hardware as quickly or to the same state. For this reason, Linux-based systems will draw more power unless specifically tuned not to 🤐
    – matigo
    Oct 13 at 23:41
  • thank you, I understand (also from other posts) that elementary has some issues with battery, but what can I do? Is my battery ruined or it can be restored?
    – guest333
    Oct 14 at 8:54
  • install tlp with sudo apt install tlp && sudo tlp start from terminal. If you want to finetune the settings follow this guide linrunner.de/tlp/introduction.html
    – Maccer
    Oct 14 at 9:40

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