![Samsung Galaxy A21s](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bb012320-6a9f-40ba-a3de-77ccaf7d7d42.png?width=150&height=320)
Samsung Galaxy A21s
Android 10.0
1. Charge the battery
Connect the charger to the socket and to a wall socket.
When the battery charging icon is displayed, the battery is charging.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2f93e14b-83eb-42b6-b3a3-db675b53bab6.png?width=200&height=448)
When the phone is turned on, you can always see the battery power level. The larger the coloured section of the battery icon, the more remaining battery power.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b9c8b03a-d135-4442-a454-47ec9b04fe4b.png?width=200&height=448)