This 4-in-1 portable charger uses a lithium-ion polymer battery.
It has a capacity of 20000mAh / 74Wh.
The power bank features dual USB outputs, allowing two devices to be charged simultaneously.
It includes multiple built-in outputs: Micro pin, Lightning pin, and Type-C.
It supports over-charged, over-discharged, over-voltage, over-current, and short circuit protection