My answer to How long does it take to charge MI 20000mah power bank for the first time?
Answer by Allen He:
how long to charge mi power bank 20000mah first time? for power bank charging time calculation, 3 elements below should be made clear:
1. The capacity of your power bank
2. The input of your power bank
3. The calculation: charging time = capacity / input
the answer to 20000mah mi power bank how long to charge is below:
1. Power bank capacity: 20000mAh
2. Input of power bank: 1000mA (1A) – considering an estimated 20% power consumption during charging/discharging process, the actual data would be 800mA (0.8 A)
3. Calculation: 20000mAh / 800mA = 25 hours
From the above calculation we would easily see that with the same battery capacity, the larger input power bank has, the quicker it is charged. Power bank charging time calculation. Mi 200000mAh power bank has dual input ports that shorten its recharging time by half. So it is a good choice if you want to recharge your power bank at a higher speed.
All Posts are from my Power Bank Blog: “”