Power Bank. Very Large Capacity, Wireless Fast Charging PowerBank.

The 100000 or 200000mAh Power Bank is an appealing choice for several reasons:

Large Capacity: With a 100000mAh / 200000mAh capacity, it can charge multiple devices multiple times, making it ideal for heavy users, long trips, or emergency situations where regular charging isn't possible. 200000mAh capacity, also means that this power bank offers an impressive duration of power, capable of lasting for several weeks.

Universal Wireless Fast Charging: The power bank supports wireless fast charging, which is convenient and efficient, especially for devices compatible with this feature. It eliminates the need for carrying multiple cables.

Thin and Portable: Despite its large capacity, it's designed to be thin and portable, making it easy to carry around without adding much bulk or weight to your bag.

Overall, its combination of high capacity, fast and wireless charging capabilities, portability, and the added benefit of free shipping makes it a strong contender for anyone in need of a reliable, high-capacity power bank.

Duration of 100000 mAh:

1. Smartphones: Assuming an average smartphone battery is around 3000mAh and lasts about a day (24 hours), a 100000mAh power bank could theoretically provide about 800 hours of battery life in total (100000mAh / 3000mAh * 24 hours).

2. Tablets: If a tablet has a 6000mAh battery lasting around 10 hours, the power bank could offer around 400 hours of use in total (100000mAh / 6000mAh * 10 hours).

3. Laptops: For a laptop with an 8000mAh battery providing about 8 hours of use, the power bank could supply around 100 hours of battery life in total (100000mAh / 8000mAh * 8 hours).

Duration of 200000 mAh: 

1. Smartphones: Approximately 1600 hours. This is based on an average smartphone battery of 3000mAh, assuming each full charge lasts about 24 hours.

2. Tablets: Around 333 hours. This calculation uses an average tablet battery of 6000mAh, with each full charge providing about 10 hours of use.

3. Laptops: About 200 hours. This is for an average laptop battery of 8000mAh, assuming each full charge offers around 8 hours of usage.