This device loses power quicker than it regains it.
This device loses power quicker than it regains it.
Dear Tech Professionals, I own a Lenovo gaming laptop Y910 experiencing charging problems. The battery depletes faster than it charges, losing about 1% every 10 seconds. After following the troubleshooting steps from the Lenovo website—updating Windows, drivers, BIOS, performing a reset by removing the battery (internal), trying a Linux boot, installing a new battery and charger—I still face the issue. The laptop seems to require the battery to function; it behaves like a power supply unit. At around 20% charge, the PC shuts down immediately, and I often wait days or even weeks for any improvement. The website mentions updating the battery firmware, but no file is available. The rapid drain makes me suspect potential damage to the motherboard. No visible issues were found after checking the power connector, and the Hardware Maintenance manual photos don’t help. If anyone has advice—even suggesting a solder job around the power management card—please share. Thank you for your assistance.
How long has your laptop been around? Are you connecting the charger that came with it? The rapid draining might stem from using an incompatible charger or from a worn-out battery. If it was previously drained and left in that state, its capacity will diminish. I’ve seen this happen with my gaming laptop—after draining it completely, turning it off, and storing it without charging, it would restart at 0% and shut down shortly before powering back on. Once recharged, the battery would lose about 3Wh.
The laptop was bought in 2017. I consistently use an authentic Lenovo Power Brick 20V 200W. I replace the battery with an original Lenovo part that the supplier tested, and also purchase a brand new Lenovo Power Brick 20V 200W. However, the issue persists. The batteries are charged to 80% and drop to 20% in under 30 minutes when not used intensely.
There could be a minor issue on the motherboard that prevents a full boot without draining the battery excessively. This might also mean the official charger isn't providing sufficient power to charge the battery properly. How hot does the power brick become? You can measure its power draw by connecting your laptop charger to a standard outlet and checking the wattage. If repairs aren't an option, consider sending it back via RMA or having it inspected at a nearby service center.
Thanks for the update, the warranty info is outdated. I’ll look into the power usage; it seems the power block isn’t getting hot. I’ll unplug everything from the motherboard and send it to a repair shop. Appreciate your help with the diagnosis.
Best regards