Portable Power Bank PB-Y48 20000mAh

The Aukey Portable Power Bank PB-Y48 20000mAh is a compact external battery designed to deliver high-capacity portable charging. With a total capacity of 20000mAh and support for up to 130W combined output across four USB ports with PPS (Programmable Power Supply), this power bank is built to recharge multiple devices rapidly and reliably while on the move. Its lightweight housing and streamlined shape make it suitable for travel, daily commuting, and situations where mains power is not available.

Advantages

The power bank combines a large 20000mAh capacity with high-power delivery, enabling extended device runtime and fast recharges for laptops, tablets, phones, and other USB-powered devices. Four USB PPS ports allow simultaneous charging of several devices with smart power negotiation to deliver optimal voltage and current. The compact footprint and moderate weight improve portability without sacrificing useful energy capacity. Built-in safety measures protect against overcurrent, overvoltage, and overheating during charging and discharging.

Suitable for

• Charging smartphones and tablets while traveling
• Powering USB-C laptops and ultrabooks on the go
• Keeping multiple devices charged during meetings or long work sessions
• Emergency backup power for power outages or remote use

Key specifications

• Battery capacity: 20000mAh (nominal)
• Maximum combined output power: up to 130W
• Ports: four USB ports with PPS support
• Fast charge support via PPS protocol for compatible devices
• Compact, travel-friendly form factor
• Built-in protection for overcurrent, overvoltage and thermal events

How to use

Connect the power bank to your device using an appropriate USB cable. The power bank will negotiate the optimal voltage and current with compatible devices via PPS for the fastest safe charge. For charging multiple devices, plug them into the available USB ports; the unit will allocate power across ports up to the combined 130W limit. To recharge the power bank itself, connect a compatible wall charger to one of its input-capable USB ports and monitor status indicators until fully charged. Refer to the device markings for port orientation and indicator meanings.

Usage recommendations

Use high-quality USB-C or USB-A cables rated for the intended power level to ensure safe and efficient charging. To preserve battery longevity, avoid exposing the power bank to extreme temperatures and store it partially charged if not used for extended periods. When charging high-power devices such as laptops, use a wall charger that supports sufficient input power to recharge the power bank quickly when needed.