MI 9 · 5 versions · 4,213 samples
Android
11 R
Battery
6600 mAh
Technology
Li-poly
Chipset
cepheus
Memory
8/128 GB
Display
1080x2221 (60Hz)
Model
MI 9
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 · 4/128 GB · 4/64 GB · 8/128 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
42.1°C
average peak while charging
Screen-on time
4h 0min
estimated on a full charge
Estimated battery life
9h 30min
estimated on a full charge
See your own charging speed, screen-on time and battery health in real time with Battery Guru.
Get Battery GuruSpotted a mistake?
Specs or numbers look off for the Xiaomi Mi9 (cepheus)? Let us know and we'll fix it.
The Xiaomi Mi9 (cepheus) packs a 3637 mAh Li-poly battery and lasts about 9h 30min on a full charge with around 4h 0min of screen-on time. It charges from 0 to 100% in roughly 2h 0min, peaking near 42.1°C while charging. Every figure is aggregated anonymously from real Mi9 (cepheus) owners using Battery Guru (259 samples), so it reflects everyday usage rather than lab claims.
Based on 259 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Xiaomi Mi9 (cepheus) lasts about 9h 30min on a full charge, with roughly 4h 0min of screen-on time.
The Mi9 (cepheus) charges from 0 to 100% in approximately 2h 0min, with charging temperatures peaking around 42.1°C.
The Mi9 (cepheus) has a 3637 mAh Li-poly battery.
It is aggregated anonymously from real Mi9 (cepheus) owners using the Battery Guru app (259 samples), reflecting real-world usage rather than manufacturer specifications.