Xiaomi MI 20000MAh 18W

High-capacity portable charger with dual 18 W charge and robust safety features.

• Capacity & Battery:
20 000 mAh (74 Wh), lithium‑ion polymer cells; rated output ~12 000 mAh (5.1 V/3.6 A) 

• Charging Inputs:
Dual inputs – USB‑C and Micro‑USB, each supporting up to 18 W (9 V/2.1 A or 12 V/1.5 A) 

• Charging Outputs:
Two USB‑A ports; single‑port output: 5 V/2.4 A, 9 V/2 A, 12 V/1.5 A; dual‑port combined: 5.1 V/3.6 A with individual 18 W max 

• Design & Dimensions:
Measuring ~154 × 73.6 × 27.3 mm; weight ~358 g (varies slightly by source) 

• Features:
Supports two‑way fast charging (18 W in/out); low‑current mode for earbuds (double‑tap power button); simultaneous dual-device charging 

• Safety & Protection:
Multi‑layer safeguards against overcharge, discharge, overheating, short‑circuit, over‑current/voltage; aviation-safe (<100 Wh, UN38.3 certified) 

• Compatibility:
Universal compatibility with smartphones, tablets, cameras, gaming devices, Bluetooth accessories