DC-DC Boost Module with microUSB Input, Charging Function for Li-Ion Batteries and USB Outputs

Tehnical specifications:

• Input: microUSB 5V, 1A sau baterie 18650;
• Output: 2x USB 5V 1A/2A;
• Conversion rate: 85%;
• LED lighting (press and hold 2~3 seconds or press twice the power button);
• Protection at overcharge, overdischarge, short circuit, overtemperature and overcurrent;
• Intelligent output, after the device is fully charged, automatically stop charging to prevent overshoot of the mobile phone;
• Stable voltage and current;
• Working temperature: -20 ~ +50°C.

4-level LED light shows power, non-working status, intelligent automatic shutdown

When charging:

• 0~25%, one LED shining;
• 25~50%, one LED shining, one LED flashes;
• 50~75%, two LEDs constant light, one LED flashes;
• 75~100%, three LEDs  constant light and one LED shines;
• 100% all four LEDs constant light.