LED Display 4-level power indication
Automatic Shutdown Intelligent state control
Dual USB Ports Flexible connections
Input Port Micro USB compatibility
Output Port USB efficiency
Protection IC Over-current & voltage safety
Battery Compatibility 3.7v-4.2V lithium types

Efficient DC-DC Conversion Converts 3.7V to a stable 5V output.
Automatic Recharge Recharges battery when plugged into USB.
LED Charge Indicators Red for charging, green for full charge.
Supports WeMos Mini Compatible with WeMos Mini and Mini Pro.
Compact and Lightweight Design Easy-to-carry board with robust performance.

Input: AC 100-240V / 47-63HZ
Output: DC 3.7V / 1000mA
Termination Voltage: 4.2V+-1%
Plugs: EU
Auto-stop Charging: Safe and efficient
Color: Black
Size: 100 x 42 x 33 mm

Stop Voltage: 2.9V for BAT discharging
Efficiency: 85% discharging efficiency, ideal for 3.7V to 5V conversion
Indications: Clear charging and discharging status with LED indications
Power MOS: Internally installed for efficient power management
Voltage Precision: Preset 4.2V with ±1% precision for safe charging
Standby Efficiency: Low 8uA current, exceedingly power-efficient
Management: Integrated charging and discharging management systems
Protection: Total protection with temperature and overvoltage safety
Zero Voltage Charging: Supports trickle mode, ideal for low voltage charging