Portable yet powerful: This portable battery charger loads 20000mAh compacity, which can be compatible with iPhone 13 and provide about 5 charges, iPad 9 almost 2 charges and Samsung galaxy S21 around 4 charges; from day to night, this replacement battery will stand by you. PD 20W Fast Charging: unlike other bulky and slow battery pack, UGREEN power bank is only as weight as an egg, and only need 30 min to charge iPhone 12 Pro from 0-60%, also the trickle-charging way creates a safe mode for low-power accessories. Repaid Recharge: This usb power bank also works nicely on refreshing itself, using the included USB-C cable and PD 20W charger adapter(not included), only 6H it will be fully recharged, then it will work weeks long.