When this happened before on my L5, I suspected a faulty battery, so I swapped it to my spare battery. Yesterday, this happened again.
Below is the battery stats from upower -d
Does it show any signs that the battery is going bad?
Device: /org/freedesktop/UPower/devices/battery_max170xx_battery native-path: max170xx_battery power supply: yes updated: tor 19 jan 2023 17:23:03 (98 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: discharging warning-level: none energy: 17,2918 Wh energy-empty: 0 Wh energy-full: 21,8746 Wh energy-full-design: 13,8572 Wh energy-rate: 0,581506 W voltage: 3,83937 V time to empty: 29,7 hours percentage: 79% temperature: 45,5 degrees C capacity: 100% technology: lithium-ion icon-name: 'battery-full-symbolic' History (rate): 1674145383 0,582 discharging