Este frase es correcto? Estuve cargando mi power bank 20h y solo dos diodas lumian, terzero y quatro titan. Puedo devolver erste y recibir nuevo hoy. Le nessesito hoy. I was loading my lower bank 20h and there is only 2 diodas on, the third and forth are just blinking. Can I exchange it today I need it for today.