Laptop battery keeps discharging even after full charge (not switching to AC)

The laptop does not switch to AC mode after fully charging. I dualboot and this problem is nonexistent on Windows 10. But on Ubuntu 15.10 it just keeps discharging.

Problem persists on Ubuntu 16.04 variants as well.

I tried fully charging(which never actually happens as ubuntu always keeps showing discharging but I charged it upto as high as possible) and then discharging to 0 and fully charging again. But it just does not work.

This cant be good for the battery, Please help.

upower --dump
Device: /org/freedesktop/UPower/devices/line_power_AC0 native-path: AC0 power supply: yes updated: Thu 04 Feb 2016 08:10:34 PM BDT (90 seconds ago) has history: no has statistics: no line-power warning-level: none online: yes icon-name: 'ac-adapter-symbolic'
Device: /org/freedesktop/UPower/devices/battery_BAT0 native-path: BAT0 vendor: ASUSTeK model: X550A30 power supply: yes updated: Thu 04 Feb 2016 08:10:55 PM BDT (69 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: discharging warning-level: none energy: 37.095 Wh energy-empty: 0 Wh energy-full: 38.49 Wh energy-full-design: 45 Wh energy-rate: 0.0192461 W voltage: 15 V percentage: 95% capacity: 85.5333% technology: lithium-ion icon-name: 'battery-full-symbolic' History (rate): 1454595055 0.019 discharging 1454595034 7.230 discharging 1454595032 3.705 discharging
Device: /org/freedesktop/UPower/devices/DisplayDevice power supply: yes updated: Thu 04 Feb 2016 08:10:55 PM BDT (69 seconds ago) has history: no has statistics: no battery present: yes state: discharging warning-level: none energy: 37.095 Wh energy-full: 38.49 Wh energy-rate: 0.0192461 W percentage: 95% icon-name: 'battery-full-symbolic'
Daemon: daemon-version: 0.99.3 on-battery: no lid-is-closed: no lid-is-present: yes critical-action: HybridSleep

ACPI output:

acpi -V
Battery 0: Discharging, 95%, discharging at zero rate - will never fully discharge.
Battery 0: design capacity 3000 mAh, last full capacity 2580 mAh = 86%
Adapter 0: on-line
Thermal 0: ok, 46.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 103.0 degrees C
Thermal 0: trip point 1 switches to mode passive at temperature 105.0 degrees C
Cooling 0: x86_pkg_temp no state information available
Cooling 1: intel_powerclamp no state information available
Cooling 2: LCD 7 of 10
Cooling 3: LCD 7 of 10
Cooling 4: Processor 0 of 3
Cooling 5: Processor 0 of 3
Cooling 6: Processor 0 of 3
Cooling 7: Processor 0 of 3

I have tried removing TLP and using a fresh installation but still no luck, I hope my continued usge in this condition isn't killing the battery.

1 Answer

The AC adaptor is showing online, and the battery is discharging at zero rate.

The battery charging logic is not under OS control. One of the many independent microcontrollers in your laptop controls the battery (along with a corresponding microcontroller in the battery itself) decide when and how to charge. At worst, your OS would not be correctly interpreting the status that they report, but I wouldn't worry about the battery being ruined.

PS: If you are plugged in it does stay charged, right, it doesn't discharge?