10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input
Product Features:Small sizeSupport Type-C interface power supply, compatible
with most PD fast charging heads1A high current linear chargingWith protection
board function Input voltage range: 5~6VOutput voltage: 4.2VCharging current:
1AFeatures:When the charging current drops to 100mA after reaching the final
float voltage, the charging cycle will be automatically terminated.When the
battery voltage drops below 4.05V (roughly corresponding to 80% to 90% of the
battery capacity), the charging cycle restarts.When the battery voltage is
lower than 2.9V, the battery will be precharged with a current of 100mA.With
protection board, over voltage protection, over discharge protection, over
current protection. Over-discharge protection value: 2.4V; over-current
protection value: 4A.You need to connect the power supply to activate the
protection board for the first use.Board size: 14×18×5mm (Type-C port female
seat protrudes about 1.5mm)Package： 10PCS
 
Product Features
  

         
Input voltage range: 5~6V; over-current, over-voltage, and under-voltage protection
         
Output voltage: 4.2V
         
An ultra-small, 1A charging board for 3.7V lithium batteries with USB Type-C power input and LED charge indicators
         
Support Type-C interface power supply, compatible with most PD fast charging heads
         
The input terminal has a Type-c USB female socket, which can be directly used as an input to charge the lithium battery with a mobile phone charger.