- Jan 05, 2018 -
Power adapter 5v1a and 5v2.1a which is good
1, the charger output current 1A and 2A are the maximum output values of the charger, which does not represent the actual charging current, and the actual current is controlled by the charging circuit of the mobile phone. It can be mixed.
2, the specific disadvantage of 2.1A charging is negligible. Charging current has great influence on battery life (mainly through battery heating and battery life), all of which are controlled by mobile phone charging circuit.
3, if you still worry, you can use small current 1A charger to charge, but the charge will be slower, and the possibility of charging the battery from the external card will damage the battery.