Hello,

1. TLP and the 75/80 % charge limit
   TLP does not limit battery charging by default — Deepin ships it without any charge-threshold setting. A 75–80 % stop is typical of a BIOS/firmware battery-conservation feature, not TLP. To verify:
   cat /sys/class/power_supply/BAT*/charge_control_end_threshold 2>/dev/null
   sudo grep -riE "charge" /etc/tlp.conf /etc/tlp.d/
2. Keep TLP installed but completely disabled (recommended)
   TLP is a dependency of Deepin's power management, so uninstalling it also removes desktop components. Instead, disable it with a config drop-in:
   sudo sh -c 'echo "TLP_ENABLED=0" > /etc/tlp.d/99_disable_tlp.conf'
   sudo tlp start
   Re-enable later: sudo rm /etc/tlp.d/99_disable_tlp.conf && sudo tlp start
3. Full removal (not recommended)
   sudo dpkg --force-depends -r tlp
   This breaks Deepin's power-mode feature and may cause dependency warnings on future updates.
   Bottom line: the charge limit is most likely firmware-related, and the safe way to stop TLP is the TLP_ENABLED=0 file above.
   Best regards

Thank you very much, Leo.
I took a similar approach — I set the 90/100 limits for battery charge by editing: sudo nano etc/tlp.conf, applied the changes: sudo tlp start. Then I documented the # lines in tlp.conf: charge limits and TLP_Enabled. The 90/100 parameters were saved in the EC controller. When I tried to enter: sudo apt purge -s tlp tlp-rdw based on the list of files to be deleted, I realized that the system would crash soon and cancelled the execution.
Unfortunately, deepin-power-manager dde-system-power-control is not found, but now the laptop is running much better than when using TLP. I think I’ll have to reinstall the system to return to the initial settings.
I’m a novice with Deepin, and mistakes are inevitable on the learning path. After using version 20.9, version 25 is more difficult for me. Thanks for your help and WBR!