User Manual for Xiaomi Power Bank 30000mAh 18W
Quick guide for the Xiaomi 18W 30000mAh Power Bank (PB3018ZM). Learn about charging specifications, low-power mode activation for smartbands, and safety features.
Table of contents
Quick guide from the manual
The Xiaomi 18W 30000mAh Power Bank is a high-capacity portable charger designed to charge up to three devices simultaneously. It features 18W fast charging, a durable anti-slip texture, and a specialized low-power mode for smaller devices like smartbands.
Product Overview
The device is equipped with three output ports: two USB-A ports and one USB-C port. It is compatible with smartphones, tablets, laptops, cameras, and smartwatches. The casing is made of PC and ABS materials, providing a scratch-resistant and durable surface.

Low-Power Mode
The power bank supports low-power charging for devices such as smartbands or Bluetooth headsets. To activate this mode, press the battery check button twice. This ensures safe and efficient charging for low-power electronics.
Charging the Power Bank
The time required to fully charge the power bank depends on the charger used:
- Approximately 7.5 hours: Using a 24W PD charger or higher with a C-to-C cable.
- Approximately 10 hours: Using a 9V/2A charger with the included data cable.
Safety Features
The power bank utilizes high-precision chips to provide multiple safety protections, including:
- Overheat protection
- Short-circuit protection
- Reset protection
- Overcharge protection
Specifications
Model: PB3018ZMBattery Type: Lithium-ionBattery Capacity: 111 Wh, 3.7 V, 30000 mAhNominal Capacity: 18000 mAh (5 V/3.6 A)Operating Temperature: 5 °C to 35 °CDimensions: 154.5 × 72.3 × 38.9 mm
Input and Output Parameters
- Input (USB-C): 5 V ⎓ 3 A, 9 V ⎓ 2.6 A
- Output (Multiple ports): 5 V ⎓ 3.6 A
- Output (Single USB-A): 5 V ⎓ 2.4 A, 9 V ⎓ 2 A, 12 V ⎓ 1.5 A
- Output (USB-C): 5 V ⎓ 3 A, 9 V ⎓ 2 A, 12 V ⎓ 1.5 A
Manufacturer information
Xiaomi Corporation
Practical help
Common problems
Activate the low-power mode by pressing the battery check button twice.
Ensure you are using a 24W PD charger or higher with a C-to-C cable for the fastest charging time (7.5 hours).
Before use
- Verify package contents: Power bank, USB-C cable, and user manual.
- Charge the power bank fully before the first use.
- Check if your device requires a specific charging protocol (the power bank supports 18W fast charging).
Images and diagrams
- The device features a battery check button on the side used for both checking status and activating low-power mode.
- There are three output ports: two USB-A and one USB-C.
Model compatibility
- Compatible with smartphones, tablets, laptops, cameras, and smartwatches.
- Supports low-power charging mode for small devices.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.