🧑 You
Check the health of the battery on this laptop
▶ Tool: read_file [path='~/Personal/skills/skill_index.md']
▶ Tool: run_bash [command='upower -e 2>/dev/null || echo "upower not availabl]…
▶ Tool: run_bash [command='upower -i /org/freedesktop/UPower/devices/battery_]…
▶ Tool: run_bash [command='echo "=== Battery Tech Info ===" && cat /sys/class]…
▶ Tool: run_bash [command='echo "=== Charge thresholds ===" && cat /sys/class]…
🤖 Assistant
Here's the full battery health report for this Lenovo laptop:
---
|
Metric |
Value |
Verdict |
|
Manufacturer |
BYD |
|
|
Model |
L21B4PC0 |
|
|
Technology |
Lithium-Polymer |
✅ |
|
Current Charge |
38% (26.49 Wh / 69.71 Wh) |
|
|
Design Capacity |
80 Wh |
|
|
Current Full Capacity |
69.71 Wh |
|
|
Capacity Retained |
87.14% |
⚠️ Worn |
|
Cycle Count |
651 cycles |
⚠️ High |
|
State |
Discharging |
|
|
Power Draw |
~18.5 W |
|
|
Time Remaining |
~1.4 hours |
|
|
Wear Level |
Normal |
|
|
Charge Threshold Support |
Yes (but not configured) |
- Capacity Loss: The battery has lost ~12.86% of its original capacity (from 80 Wh → 69.71 Wh). That's noticeable but not critical yet.
- Cycle Count (651): This is moderately high. Typical Li-Po batteries are rated for 300–500 cycles before significant degradation. You're past that mark, and the capacity loss reflects it.
- Discharge Rate: At ~18.5 W draw, you're getting about 1.4 hours of runtime from 38%. A full charge would give roughly 3.7 hours of battery life.
- No charging thresholds set — you could extend battery longevity by setting a charge limit (e.g., stop at 80%) via charge_control_end_threshold if you keep it plugged in often.
Your battery is functional but worn. At 87% of original capacity with 651 cycles, it's still usable for casual use, but if you need longer unplugged runtime, you might want to consider a replacement before too long.