10000mAh mini portable, built-in four wire high-capacity fast charging power bank - black

1. Compact and portable, with creative design
With its small size and lightweight design, it doesn't take up much space and can easily fit into a pocket or a small carry-on bag, making it a hassle-free travel companion.
2. Equipped with a hanging strap for easy carrying
Equipped with a portable lanyard, it can be directly hung on a backpack or wrist to avoid loss, making outdoor use more convenient and secure.
The digital display of electricity is clear at a glance
3. Equipped with a digital battery display, the remaining battery life is visible in real time, allowing you to keep track of the charging status at any time and bid farewell to battery anxiety.
Lithium polymer cells are safe and durable. Made with high-quality lithium polymer cells, they offer enhanced safety, lower heat generation, longer cycle life, and greater reliability for long-term use.
The total nominal capacity (10000mAh) of the internal battery cells in the portable charger is measured at a voltage of 3.7V.
5. The standard voltage for charging devices such as mobile phones is 5V. During the discharge process, there is a step of voltage boosting and conversion, which inevitably results in energy loss.
6. Therefore, the actual effective output capacity of a portable power bank is approximately 60%-70% of its nominal total capacity.
7. For example, a mobile power bank with a nominal capacity of 10000mAh can actually provide a charging capacity of approximately 6000-7000mAh for devices