Plugging a USB-C charger into the Lenovo IdeaPad Slim 3 Gen 8 shows no charging icon, or the battery drains slowly even while connected. The AMD Ryzen 5 7520U model uses a USB-C port that supports Power Delivery charging, but charger wattage and firmware are critical for it to work correctly.
Use a 65W USB-C Power Delivery Charger Check first
Confirm your USB-C charger is rated at 65W with USB Power Delivery. A 45W or standard 5V/3A charger may not trigger charging on the IdeaPad Slim 3 Gen 8 under active use. Look for “65W PD” on the charger label.
Update BIOS via Lenovo Vantage
Open Lenovo Vantage → System Update → Check for updates. Install any available BIOS update for the IdeaPad Slim 3 Gen 8. BIOS updates improve USB-C Power Delivery negotiation and can fix chargers that were previously not recognised.
Update AMD Chipset Drivers
Download the AMD Ryzen chipset driver from Lenovo Vantage or Lenovo Support for IdeaPad Slim 3 Gen 8. The chipset driver includes the USB-C controller firmware that handles Power Delivery negotiation.
Reset Battery Calibration in BIOS
Restart and press F2 to enter BIOS setup. Look for a battery or power section with a Calibrate or Reset option. On some IdeaPad models, battery miscalibration causes the system to report full charge when it is not, preventing USB-C charging from starting.
“Updating the BIOS via Lenovo Vantage made my 65W USB-C charger start working on the IdeaPad Slim 3 Gen 8.” — Farida, Johor Bahru
Ryan holds a Computer Science degree and has spent over 15 years troubleshooting Windows hardware and driver issues across major laptop brands. He writes practical, step-by-step guides for everyday users at softwaredriverdownload.com.
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