-> The external battery itself invites the original Apple transformer in about 4 hrs full on..
-> The charging time from 50% to 100% is about 60 minutes
-> The charging time from 25% to 100% is about 90 minutes
-> The charging time from 0% to 100% is approximately 120 minutes
-> As the original battery in the iPhone 5 has 1434 mAh it can be loaded 2x kopmplett.
Overall very satisfied. Even the included 20cm Adapter connector fits into the iPhone incl. The cover and locks completely.