Portable Charger 2-in-1 with 8000mAh (2000mAh x 4), 2 USB, 5V 2A

Practical operation, unlimited capacity extension: insert the battery (dry battery cannot be used), adjust the case and use it as a mobile battery. The battery case has a slim design, making insertion and removal of batteries even easier. With 4, the maximum output is 5V 2A, and you can use it with 1, but the output current drops to 25%. With this battery case, you don't need to buy many mobile batteries. Industrial lithium battery 22000 mAh 4: industrial lithium battery, maximum current 6 A, discharge efficiency 3 C, safe temperature 170 degrees, suitable for products such as electric vehicles, safe voltage 3.7 V, please use with confidence. It is also used in devices such as high-brightness flashlights, manual fans and air conditioners.