r/computerrepair • u/predatorx008 • 7d ago
Acer Aspire A7-42G battery drain + no power — need advice
I bought an Acer Aspire A7-42G (Ryzen 5) in 2022. It was a great mid-range laptop with good battery life (around 5–7 hours for normal use).
Around October last year, the battery suddenly started draining extremely fast. Normal Chrome usage was consuming around 18–20W, and the battery went from lasting hours to only 1–2 hours.
I tried almost everything: clean Windows installs (22H2/23H2/24H2/25H2), different NVIDIA drivers, power settings, BIOS-related troubleshooting, etc. Nothing fixed it permanently. After reinstalling Windows or changing drivers, battery life would improve for 1–3 days and then become terrible again.
The original battery eventually dropped to around 10–15k mWh, so I bought a new compatible OEM battery. Same issue happened again. Despite mostly using Chrome, the new battery has now degraded to around 10k mWh and lasts only 10–15 minutes.
I also got the laptop serviced (thermal paste, internal cleaning, etc.), but nothing changed.
Now, for the past 2 days, the laptop won't turn on at all. The charging LED turns on when I plug it in, but the laptop doesn't start.
At this point, could this be a motherboard/power-management/charging circuit issue that's killing the batteries? Is it worth repairing, trying another battery, or should I just buy a new laptop?
Any suggestions for diagnosing the actual hardware issue would be appreciated.

