1x 21700 Mini Power Bank Case DIY Mobile Power Supply Battery Box kit Free Welding Type-C For Smart Phones Not Include Battery

Question 1: Does this kit include the battery, and which cell is best to use?
Answer 1: No, the battery is not included. This kit is specifically designed for a single 21700 lithium-ion cell. This modular design allows you to choose your own high-quality battery, such as a Samsung or LG cell, ensuring you have a reliable and long-lasting power source that you can trust.

Question 2: How difficult is the assembly process for this power bank?
Answer 2: It is designed for ultimate simplicity. This is a completely welding-free, tool-free kit. You simply snap your 21700 battery into the designated slot and secure the case. It takes less than a minute to go from a DIY kit to a high-performance portable charger ready for your everyday carry.

Question 3: Will this work with both iPhone and Android devices?
Answer 3: Yes. The device features integrated dual-output connectors, including both Type-C and Lightning (IP) interfaces. It is compatible with 99% of modern smartphones and tablets, providing a versatile charging solution that fits in your pocket and even features a built-in kickstand for hands-free viewing.