The A57 is a high-performance portable power bank equipped with four 21700 battery cells, providing reliable and long-lasting power for your devices. It features multiple fast-charging outputs including Type-C and USB-A, supporting up to 20V/5A output for quick and efficient charging. With its dual input and output Type-C ports, it allows for both charging the power bank and powering your gadgets simultaneously.

Designed in a sleek black or gray finish, the A57 offers broad compatibility—ideal for smartphones, tablets, and other USB-powered devices. Its intelligent protection circuit ensures safe and stable operation, while the compact size (157.8 × 56.5 × 42 mm) makes it easy to carry anywhere.

Key Features:

Battery Type: 21700 cells × 4

Output (Type-C): 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A

Output (USB-A): 5V/3A, 9V/2A, 10V/2.25A, 12V/1.5A

Input (Type-C): 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A

Color Options: Black, Gray

Compatibility: 99% of smartphones and tablets

Safety: Built-in protection circuit