Romanized Bangla: Sir mere pass hai aa modiul lekin me battery se connect kiya hai or me jab usb mobile ko contact kar ta hun to 2 led bink kar ke yee band hoja ta hai or full charge se 0 ho jata hai or modiul ke hisab se or 2 mint me power bank ki battery full bhe hoja ti hai mhu jhe samaj nhi aaraha hai ki modiul kharab hai ya battery