MI 9 · 4 versions · 3,277 samples
Android
11 R
Battery
4000 mAh
Technology
Li-poly
Chipset
cepheus
Memory
8/128 GB
Display
1080x2221 (60Hz)
Model
MI 9
Android
11 R
Battery
3637 mAh
Technology
Li-poly
Chipset
cepheus
Memory
8/128 GB
Display
1080x2135 (60Hz)
Model
MI 9
Android versions
16 Baklava · 15 Vanilla Ice Cream · 14 Upside Down Cake · 11 R
Battery
3300 mAh
Technology
Li-poly
Chipset
cepheus
Memory options
8/256 GB · 8/128 GB · 4/64 GB · 4/128 GB · 4/57 GB
Display
1080x2340 (60Hz)
Model
MI 9
Android
10 Q
Battery
3000 mAh
Technology
Li-poly
Chipset
cepheus
Memory
8/128 GB
Display
1080x2340 (60Hz)
Model
MI 9
Estimated charging time
2h 0min
to charge 0 → 100%
Max charging temperature
38.3°C
average peak while charging
Screen-on time
3h 30min
estimated on a full charge
Estimated battery life
85h 0min
estimated on a full charge
See your own charging speed, screen-on time and battery health in real time with Battery Guru.
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The Xiaomi Mi9 (cepheus) packs a 4000 mAh Li-poly battery and lasts about 85h 0min on a full charge with around 3h 30min of screen-on time. It charges from 0 to 100% in roughly 2h 0min, peaking near 38.3°C while charging. Every figure is aggregated anonymously from real Mi9 (cepheus) owners using Battery Guru (3 samples), so it reflects everyday usage rather than lab claims.
Based on 3 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Xiaomi Mi9 (cepheus) lasts about 85h 0min on a full charge, with roughly 3h 30min of screen-on time.
The Mi9 (cepheus) charges from 0 to 100% in approximately 2h 0min, with charging temperatures peaking around 38.3°C.
The Mi9 (cepheus) has a 4000 mAh Li-poly battery.
It is aggregated anonymously from real Mi9 (cepheus) owners using the Battery Guru app (3 samples), reflecting real-world usage rather than manufacturer specifications.