K6-PCBA 5V 1.2A 450000 mA Mobile Power Board DIY Board Boost Module  Feature:  Model: K6-PCBA<br> Input: 5V 1.2A<br> Output: 5V 1A， 5V 2.1A<br> Battery voltage range: 3.7V &amp;plusmn; 0.5V<br> Capacity Display range: 1% -100%<br> Support capacity range: 450，000 mA<br> Dimensions: 62 x 22 x 15MM  Package included:  1 x K6-PCBA 5V 1.2A 450000 mA Mobile Power Board DIY Board Boost Module