All devices

Samsung Galaxy A21

SM-A215U · 2 versions · 47 samples

4000 mAh2 GB RAMAndroid 11 R60 Hz

Specifications

Android

12 S

Battery

4000 mAh

Technology

Li-Po

Chipset

a21

Memory

2/32 GB

Display

720x1431 (60Hz)

Model

SM-A215U

Android

11 R

Battery

4000 mAh

Technology

Li-Po

Chipset

exynos7884B

Memory

2/64 GB

Display

720x1405 (60Hz)

Model

SM-A215U

Battery performance

Estimated charging time

2h 30min

to charge 0 → 100%

Max charging temperature

37.8°C

average peak while charging

Screen-on time

8h 0min

estimated on a full charge

Estimated battery life

14h 30min

estimated on a full charge

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Samsung Galaxy A21 battery life

The Samsung Galaxy A21 packs a 4000 mAh Li-Po battery and lasts about 14h 30min on a full charge with around 8h 0min of screen-on time. It charges from 0 to 100% in roughly 2h 30min, peaking near 37.8°C while charging. Every figure is aggregated anonymously from real Galaxy A21 owners using Battery Guru (6 samples), so it reflects everyday usage rather than lab claims.

Based on 6 anonymized samples from Battery Guru.

Frequently asked questions

How long does the Galaxy A21 battery last?

Aggregated Battery Guru data shows the Samsung Galaxy A21 lasts about 14h 30min on a full charge, with roughly 8h 0min of screen-on time.

How long does the Galaxy A21 take to charge?

The Galaxy A21 charges from 0 to 100% in approximately 2h 30min, with charging temperatures peaking around 37.8°C.

What is the Galaxy A21 battery capacity?

The Galaxy A21 has a 4000 mAh Li-Po battery.

Where does this Galaxy A21 battery data come from?

It is aggregated anonymously from real Galaxy A21 owners using the Battery Guru app (6 samples), reflecting real-world usage rather than manufacturer specifications.