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Battery percent showing negative on Logitech G733 Lightspeed #433

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#434
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Battery percent showing negative on Logitech G733 Lightspeed#433
#434
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device-bug

Description

@the-exodus
the-exodus
opened on Nov 4, 2025

Description

Battery level showing as negative for G733 Lightspeed. Possibly related to issue #416 .

~ ❯ headsetcontrol -b
Found 1 supported device(s):
 Logitech G633/G635/G733/G933/G935 (G733 Gaming Headset) [0x046d:0x0afe]
Battery:
	Status: BATTERY_AVAILABLE
	Level: -24%

~ ❯ headsetcontrol -b -c
-24
Warning: short output deprecated, use the -o option instead

~ ❯ headsetcontrol -b -o STANDARD
Found 1 supported device(s):
 Logitech G633/G635/G733/G933/G935 (G733 Gaming Headset) [0x046d:0x0afe]
Battery:
	Status: BATTERY_AVAILABLE
	Level: -24%

Headset Name

Logitech G733 Lightspeed

On which OS does the problem happen?

Linux

Device information

Detailed Device Information 
Device Found
 VendorID: 0x046d
ProductID: 0x0afe
 path: /dev/hidraw4
 serial_number: 0000000000000000
 Manufacturer: Logitech
 Product:      G733 Gaming Headset
 Interface:    3
 Usage-Page: 0xc Usageid: 0x1

Device Found
 VendorID: 0x046d
ProductID: 0x0afe
 path: /dev/hidraw4
 serial_number: 0000000000000000
 Manufacturer: Logitech
 Product:      G733 Gaming Headset
 Interface:    3
 Usage-Page: 0xff43 Usageid: 0x202

Device Found
 VendorID: 0x046d
ProductID: 0x0afe
 path: /dev/hidraw4
 serial_number: 0000000000000000
 Manufacturer: Logitech
 Product:      G733 Gaming Headset
 Interface:    3
 Usage-Page: 0xff13 Usageid: 0x1

Activity

  1. the-exodus
    added
    device-bug
    on Nov 4, 2025

  2. Sapd commented on Nov 5, 2025

    @Sapd
    Sapd
    on Nov 5, 2025
    Owner

    https://github.com/Sapd/HeadsetControl/blob/e8b81ec472b84672fed45795f331e385b724ceb1/src/devices/logitech_g633_g933_935.c#L46C1-L54C2

    That part could lead to negative values if the voltage is quite low. (under 3,3V). At that the battery (if it's LI Ion) is almost empty btw. Maybe maximum 5%

  3. Sapd
    added 2 commits that reference this issue on Nov 5, 2025

    Fix Battery on various Logitech devs

    ac533be

    Fix Battery on various Logitech devs (#434)

    a493017
  4. Sapd
    closed this as completedin #434on Nov 5, 2025

  5. Sapd commented on Nov 5, 2025

    @Sapd
    Sapd
    on Nov 5, 2025
    Owner

    I replaced the battery function

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