660,000 fast charge versus 220,000 time. 660,000 fast charge and 220,000 fast charge, it can be said that 660,000 fast charge 4500 mah battery, it takes about 35 minutes to charge from 1% to 100%, if it is 220,000 charging, the same charge 4500 mah battery from 1% to 100%, use an hour and 45 minutes. So the difference between them is over an hour and about 70 minutes.