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Redmi K40

M2012K11AC · 2 versions · 2,943 samples

4520 mAh12 GB RAMAndroid 11 R120 Hz

Specifications

Android versions

16 Baklava · 15 Vanilla Ice Cream · 14 Upside Down Cake

Battery

4520 mAh

Technology

Li-Po

Chipset

alioth

Memory options

12/256 GB · 8/256 GB

Display

1080x2400 (144Hz)

Model

M2012K11AC

Android versions

16 Baklava · 13 Tiramisu · 11 R

Battery

4520 mAh

Technology

Li-Po

Chipset

alioth

Memory options

12/256 GB · 8/256 GB · 8/128 GB

Display

1080x2276 (120Hz)

Model

M2012K11AC

Battery performance

Estimated charging time

1h 30min

to charge 0 → 100%

Max charging temperature

43.0°C

average peak while charging

Screen-on time

6h 0min

estimated on a full charge

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Redmi K40 battery life

The Redmi K40 packs a 4520 mAh Li-Po battery and lasts about 113h 0min on a full charge with around 6h 0min of screen-on time. It charges from 0 to 100% in roughly 1h 30min, peaking near 43.0°C while charging. Every figure is aggregated anonymously from real K40 owners using Battery Guru (36 samples), so it reflects everyday usage rather than lab claims.

Based on 36 anonymized samples from Battery Guru.

Frequently asked questions

How long does the K40 battery last?

Aggregated Battery Guru data shows the Redmi K40 lasts about 113h 0min on a full charge, with roughly 6h 0min of screen-on time.

How long does the K40 take to charge?

The K40 charges from 0 to 100% in approximately 1h 30min, with charging temperatures peaking around 43.0°C.

What is the K40 battery capacity?

The K40 has a 4520 mAh Li-Po battery.

Where does this K40 battery data come from?

It is aggregated anonymously from real K40 owners using the Battery Guru app (36 samples), reflecting real-world usage rather than manufacturer specifications.

Redmi K40: battery life & specs | Battery Mentor