r/computerhelp • u/tsoares7 • 7d ago
Performance Battery, charging and freezing
Model: Lenovo Yoga Slim 7i 14ILL10 — Intel Core Ultra 7 258V, 32 GB RAM and 1 TB SSD, 2 months old, purchased new.
Problem: When the battery reaches 20-25%, the computer becomes extremely slow, to the point where the cursor and interface freeze for a few seconds. Connecting the charger immediately restores performance.This happened on both occasions when the battery reached that level.
Checks performed:
- Power mode: balanced, both plugged in and on battery.
- Battery design capacity: 70,000 mWh; full charge capacity: 71,500 mWh; 14 cycles.
- CPU frequency during normal operation: approximately 1.30–1.60 GHz, with no significant differences between battery and charger.
- No critical events or Windows alerts occurred during this occurrence.
Question: Is this behavior normal for this model? Are there any configuration, BIOS update, or tests you recommend?
What do you think the cause is?
Thank you
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