https://bugzilla.kernel.org/show_bug.cgi?id=214811
Bug ID: 214811
Summary: Last full battery capacity reports higher than the
design capacity [Razer Blade Stealth 13]
Product: ACPI
Version: 2.5
Kernel Version: 5.14.14
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Power-Battery
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Last full battery capacity reports higher than the design capacity on Razer
Blade Stealth 13 laptop:
Laptop:
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Razer
Product Name: Blade Stealth 13 (Late 2020) - RZ09-0327
Version: 5.04
Serial Number: REDACTED
UUID: REDACTED
Wake-up Type: PCI PME#
SKU Number: RZ09-03272E82
Family: 1A581007 Razer Blade Stealth
Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: Razer
Version: 2.03
Release Date: 03/29/2021
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16 MB
When on AC, fully charged:
arno@stealth:~$ acpi -bi
Battery 0: Full, 100%
Battery 0: design capacity 4602 mAh, last full capacity 4750 mAh = 100%
arno@stealth:~$ grep ^ /sys/class/power_supply/BAT0/charge_*
/sys/class/power_supply/BAT0/charge_full:4750000
/sys/class/power_supply/BAT0/charge_full_design:4602000
/sys/class/power_supply/BAT0/charge_now:4750000
arno@stealth:~$ grep ^ /sys/class/power_supply/*/*
grep: /sys/class/power_supply/AC0/device: Is a directory
grep: /sys/class/power_supply/AC0/hwmon0: Is a directory
/sys/class/power_supply/AC0/online:1
grep: /sys/class/power_supply/AC0/power: Is a directory
grep: /sys/class/power_supply/AC0/subsystem: Is a directory
/sys/class/power_supply/AC0/type:Mains
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_NAME=AC0
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_TYPE=Mains
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_ONLINE=1
grep: /sys/class/power_supply/AC0/wakeup28: Is a directory
/sys/class/power_supply/BAT0/alarm:0
/sys/class/power_supply/BAT0/capacity:100
/sys/class/power_supply/BAT0/capacity_level:Full
/sys/class/power_supply/BAT0/charge_full:4750000
/sys/class/power_supply/BAT0/charge_full_design:4602000
/sys/class/power_supply/BAT0/charge_now:4750000
/sys/class/power_supply/BAT0/current_now:0
/sys/class/power_supply/BAT0/cycle_count:0
grep: /sys/class/power_supply/BAT0/device: Is a directory
grep: /sys/class/power_supply/BAT0/hwmon2: Is a directory
/sys/class/power_supply/BAT0/manufacturer:Razer
/sys/class/power_supply/BAT0/model_name:Blade
grep: /sys/class/power_supply/BAT0/power: Is a directory
/sys/class/power_supply/BAT0/present:1
/sys/class/power_supply/BAT0/serial_number:CNB1RC30-0281020CK01052-A01
/sys/class/power_supply/BAT0/status:Full
grep: /sys/class/power_supply/BAT0/subsystem: Is a directory
/sys/class/power_supply/BAT0/technology:Unknown
/sys/class/power_supply/BAT0/type:Battery
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_NAME=BAT0
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_TYPE=Battery
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_STATUS=Full
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_PRESENT=1
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_TECHNOLOGY=Unknown
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CYCLE_COUNT=0
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11550000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_VOLTAGE_NOW=13138000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CURRENT_NOW=0
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_FULL_DESIGN=4602000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_FULL=4750000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_NOW=4750000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CAPACITY=100
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CAPACITY_LEVEL=Full
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_MODEL_NAME=Blade
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_MANUFACTURER=Razer
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_SERIAL_NUMBER=CNB1RC30-0281020CK01052-A01
/sys/class/power_supply/BAT0/voltage_min_design:11550000
/sys/class/power_supply/BAT0/voltage_now:13138000
Disconnected from the AC:
arno@stealth:~$ acpi -bi
Battery 0: Discharging, 100%, 09:47:11 remaining
Battery 0: design capacity 4602 mAh, last full capacity 4766 mAh = 100%
arno@stealth:~$ grep ^ /sys/class/power_supply/BAT0/charge_*
/sys/class/power_supply/BAT0/charge_full:4766000
/sys/class/power_supply/BAT0/charge_full_design:4602000
/sys/class/power_supply/BAT0/charge_now:4766000
arno@stealth:~$ grep ^ /sys/class/power_supply/*/*
grep: /sys/class/power_supply/AC0/device: Is a directory
grep: /sys/class/power_supply/AC0/hwmon0: Is a directory
/sys/class/power_supply/AC0/online:0
grep: /sys/class/power_supply/AC0/power: Is a directory
grep: /sys/class/power_supply/AC0/subsystem: Is a directory
/sys/class/power_supply/AC0/type:Mains
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_NAME=AC0
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_TYPE=Mains
/sys/class/power_supply/AC0/uevent:POWER_SUPPLY_ONLINE=0
grep: /sys/class/power_supply/AC0/wakeup28: Is a directory
/sys/class/power_supply/BAT0/alarm:0
/sys/class/power_supply/BAT0/capacity:100
/sys/class/power_supply/BAT0/capacity_level:Normal
/sys/class/power_supply/BAT0/charge_full:4766000
/sys/class/power_supply/BAT0/charge_full_design:4602000
/sys/class/power_supply/BAT0/charge_now:4766000
/sys/class/power_supply/BAT0/current_now:601000
/sys/class/power_supply/BAT0/cycle_count:0
grep: /sys/class/power_supply/BAT0/device: Is a directory
grep: /sys/class/power_supply/BAT0/hwmon2: Is a directory
/sys/class/power_supply/BAT0/manufacturer:Razer
/sys/class/power_supply/BAT0/model_name:Blade
grep: /sys/class/power_supply/BAT0/power: Is a directory
/sys/class/power_supply/BAT0/present:1
/sys/class/power_supply/BAT0/serial_number:CNB1RC30-0281020CK01052-A01
/sys/class/power_supply/BAT0/status:Discharging
grep: /sys/class/power_supply/BAT0/subsystem: Is a directory
/sys/class/power_supply/BAT0/technology:Unknown
/sys/class/power_supply/BAT0/type:Battery
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_NAME=BAT0
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_TYPE=Battery
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_STATUS=Discharging
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_PRESENT=1
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_TECHNOLOGY=Unknown
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CYCLE_COUNT=0
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11550000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_VOLTAGE_NOW=13024000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CURRENT_NOW=601000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_FULL_DESIGN=4602000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_FULL=4766000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CHARGE_NOW=4766000
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CAPACITY=100
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_CAPACITY_LEVEL=Normal
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_MODEL_NAME=Blade
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_MANUFACTURER=Razer
/sys/class/power_supply/BAT0/uevent:POWER_SUPPLY_SERIAL_NUMBER=CNB1RC30-0281020CK01052-A01
/sys/class/power_supply/BAT0/voltage_min_design:11550000
/sys/class/power_supply/BAT0/voltage_now:13024000
Is this normal?
Any ideas what else to check?
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