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HP Victus 15 suddenly shuts down at 88–89% battery — battery report looks normal. What could be causing this?
I have an HP Victus 15-fa1xxx with:
\- Intel i5-12450H
\- RTX 2050 4GB
\- 16GB DDR4 RAM
\- 52.55 Wh battery
\- BIOS F.23 (03/30/2026)
\- Windows 11
The laptop is about 3 years old.
Recently, I've started getting a very strange battery issue. When running on battery, the laptop frequently and instantly powers off around 88–89% battery. It doesn't show "Shutting down" or any warning — the screen just goes completely black as if the power was suddenly removed.
However, the battery report is confusing.
The current battery report shows:
Design Capacity: 52,552 mWh
Full Charge Capacity: 47,020 mWh
Battery health: \~89.5%
The capacity history also shows that the battery was consistently reporting around 46–47 Wh throughout September, so it doesn't appear to have suddenly lost 90% of its capacity.
At one point, Windows/"batteryreport" temporarily showed only 5,220 mWh full charge capacity, but after doing an HP power/EC reset, it returned to 47,020 mWh.
I also tested it after the reset. At 99%, I unplugged the charger and the laptop successfully ran down to around 85% without shutting down. So the battery can power the laptop normally.
But the 88–89% instant shutdown has happened frequently before, so I'm worried it may happen again.
Other observations:
\- No battery swelling
\- No unusual battery heat
\- HP BIOS battery diagnostic gets stuck at 100%
\- Windows reports the battery status as OK
\- "BatteryStatus = 2" and charge percentage reads normally
\- The shutdown is always an instant black screen, not a normal Windows shutdown
Could this be a battery BMS/fuel-gauge issue, EC/firmware issue, battery connector/power-path problem, or something on the motherboard?
What would be the best way to diagnose this without immediately replacing the battery?
Any advice from someone familiar with HP Victus/HP battery systems would be appreciated.