22021211RC · 3 versions · 1,280 samples
Android
14 Upside Down Cake
Battery
5000 mAh
Technology
Li-Po
Chipset
munch
Memory
12/256 GB
Display
1080x2190 (120Hz)
Model
22021211RC
Android
12 S
Battery
5000 mAh
Technology
Li-Po
Chipset
munch
Memory
12/256 GB
Display
1080x2276 (120Hz)
Model
22021211RC
Android versions
15 Vanilla Ice Cream · 14 Upside Down Cake · 13 Tiramisu · 12 S
Battery
5000 mAh
Technology
Li-Po
Chipset
munch
Memory options
8/256 GB · 12/528 GB · 12/128 GB · 12/256 GB · 8/128 GB
Display
1080x2276 (120Hz)
Model
22021211RC
Estimated charging time
1h 30min
to charge 0 → 100%
Max charging temperature
45.2°C
average peak while charging
Screen-on time
6h 30min
estimated on a full charge
Estimated battery life
12h 30min
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 Redmi K40S packs a 5000 mAh Li-Po battery and lasts about 12h 30min on a full charge with around 6h 30min of screen-on time. It charges from 0 to 100% in roughly 1h 30min, peaking near 45.2°C while charging. Every figure is aggregated anonymously from real K40S owners using Battery Guru (17 samples), so it reflects everyday usage rather than lab claims.
Based on 17 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Redmi K40S lasts about 12h 30min on a full charge, with roughly 6h 30min of screen-on time.
The K40S charges from 0 to 100% in approximately 1h 30min, with charging temperatures peaking around 45.2°C.
The K40S has a 5000 mAh Li-Po battery.
It is aggregated anonymously from real K40S owners using the Battery Guru app (17 samples), reflecting real-world usage rather than manufacturer specifications.