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After fully charging the Anker PowerCore 20100, I ended up running my own personal test to see just how many full charges I could get on my Samsung Galaxy S7. Everyday, for 5 days in a row, I would allow my phone to drain as much as possible as you can see below....then the next morning I would charge my phone using only the Anker Powerbank until it was fully charged. Here are the results! *Charge #1 = 15% to 100% power in 1 hour 35 mins. (4 solid lights) *Charge #2 = 20% to 100% power in 1 hour 30 mins. (3 solid lights) *Charge #3 = 08% to 100% power in 1 hour 45 mins. (2 solid lights) *Charge #4 = 03% to 100% power in 1 hour 50 mins. (1 solid light) *Charge #5 = 20% to 100% power in 1 hour 25 mins. (1 Blinking light) The next morning (on day 6), I tried recharging the phone again while the 1 remaining light on the Anker Power bank was still blinking ..... It basically went from 14% to 21% power before the Power bank ended up running completely dry. So all in all I was able to get "5 Full Charges" from this one Power Bank with my Samsung Galaxy S7. Hope this helps anyone who is undecided on pulling the trigger!