Astrum PB255 20000mAh Power Bank PD20W Dual USB‑A
The Astrum PB255 is a high‑capacity 20000mAh fast‑charging power bank built for users who need reliable, multi‑device power on the go. Featuring PD20W USB‑C fast charging and dual USB‑A high‑speed outputs, it delivers rapid, efficient charging for smartphones, tablets, earbuds, and other USB‑powered devices. Its multi‑input design (Micro USB + USB‑C) ensures convenient recharging with any cable you already own, while the LED battery indicator keeps you informed of remaining power levels. Equipped with Smart IC protection, the PB255 automatically adjusts output to match each device’s requirements, preventing over‑voltage, overheating, over‑current, and short‑circuit damage. Despite its large capacity, the PB255 remains portable, durable, and travel‑friendly, making it the ideal backup power solution for commuting, business trips, and outdoor use.
✅ Key Specifications
20000mAh high‑capacity polymer battery
PD20W USB‑C fast charging
Dual USB‑A high‑speed outputs
Multi‑input: Micro USB + USB‑C
LED battery level indicator
Smart IC protection (OVP/OCP/OTP/SCP)
Supports Apple & Android fast charging
Durable, portable design
✅ Technical Details
Feature Details
SKU A91625‑B
Model PB255
Battery Capacity 20000mAh (3.7V / 74Wh)
USB‑C Input 5V 2.4A / 9V 2A / 12V 1.5A
Micro USB Input 5V 2A / 9V 2A / 12V 1.5A
USB‑A Outputs (x2) 4.5V 5A / 5V 4.5A / 5V 3A / 9V 2A / 12V 1.5A
USB‑C Output 4.5V 5A / 5V 4.5A / 5V 3A / 9V 2.22A / 12V 1.67A
Power Delivery 22.5W max
Dimensions 140.3 × 68 × 28 mm
Weight Approx. 413 g
Protection Over‑voltage, short‑circuit, over‑charging
Indicator LED battery display
Warranty 12 Months