I just purchased 2 new ego batteries through the usa janty site. Upon recieving I plugged the first one into my janty usb charger. The light on the charger turned red signifying it charging. The light turned green about 20 minutes later. Upon unscrewing the battery fromt he charger the light started blinking rapidly in 5 blink increments. Its not working with my atomiser and I don't know what the blinking lights mean. What did I do wrong or is this a defective battery?