All devices

Xiaomi Mi9 (cepheus)

MI 9 · 4 versions · 3,277 samples

4000 mAh8 GB RAMAndroid 11 R60 Hz

Specifications

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

Battery performance

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

Track your Mi9 (cepheus)

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Xiaomi Mi9 (cepheus) battery life

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.

Frequently asked questions

How long does the Mi9 (cepheus) battery last?

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.

How long does the Mi9 (cepheus) take to charge?

The Mi9 (cepheus) charges from 0 to 100% in approximately 2h 0min, with charging temperatures peaking around 38.3°C.

What is the Mi9 (cepheus) battery capacity?

The Mi9 (cepheus) has a 4000 mAh Li-poly battery.

Where does this Mi9 (cepheus) battery data come from?

It is aggregated anonymously from real Mi9 (cepheus) owners using the Battery Guru app (3 samples), reflecting real-world usage rather than manufacturer specifications.