100W USB-C GaN Charger with Power Bank for OEM Customization
Use this product page to shortlist the model, then send quantity, target market, logo and packaging needs for factory MOQ, sampling plan and quote confirmation.
The K81 is a 20000mAh 100W power bank with two USB-C input/output ports and one USB output. Its 20V/5A USB-C1 profile provides up to 100W for compatible charging systems.
Product Specifications
| Specification | Product detail |
|---|---|
| Model | K81 super fast charge 100W |
| Battery | Four 21700 cells |
| Capacity | 20000mAh |
| Materials | ABS and PC |
| Size | 153 × 55 × 34mm |
| Colours | Black, blue or grey |
Port Profiles
- USB 1 Output: 5V/3A, 9V/2A, 12V/1.5A or 10V/2.25A
- USB-C 1 Input/Output: 5V/3A, 9V/3A, 15V/3A or 20V/5A
- USB-C 2 Input/Output: 5V/3A, 9V/3A, 15V/3A or 20V/3A
100W USB-C Output
The USB-C1 port supports a 20V/5A profile for up to 100W. Maximum output requires a compatible device and charging cable.
OEM/ODM Project Support
For a 100W power bank, 20000mAh power bank or custom power bank project, provide the destination market, target devices, cables, quantity, colours, branding and packaging.
How to evaluate K81 super fast charge 100W power bank
Buyers sourcing 20000mAh 100W power bank can evaluate K81 super fast charge 100W power bank through model: K81 super fast charge 100W; battery: Four 21700 cells; capacity: 20000mAh. Keep those values consistent from the first inquiry through sample and order review.
Buyer decision points
- Model: K81 super fast charge 100W
- Battery: Four 21700 cells
- Capacity: 20000mAh
- USB 1 Output: 5V/3A, 9V/2A, 12V/1.5A or 10V/2.25A
- RFQ scope: Include capacity and rated energy, input and output profiles, required ports or built-in cables, target devices, quantity, target market, branding and packaging.
Buyer FAQs for this configuration
Does the 20000mAh capacity of K81 super fast charge 100W power bank determine its charging speed?
No. Capacity describes the battery size, while charging speed depends on the input and output profiles. The specified input is 5V/3A, 9V/3A, 15V/3A or 20V/5A. The specified output is 5V/3A, 9V/2A, 12V/1.5A or 10V/2.25A.
During quotation review, what should buyers verify behind the high-power claim for the K81 super fast charge 100W configuration?
Input: 5V/3A, 9V/3A, 15V/3A or 20V/5A. Output: 5V/3A, 9V/2A, 12V/1.5A or 10V/2.25A. Request the exact USB PD or PPS profiles, single- and multi-port allocation and a cable rated for the intended power. A maximum-wattage headline does not describe every port-use scenario.
For model selection, which battery documents matter when the K81 super fast charge 100W configuration will travel or ship by air?
The specified capacity is 20000mAh. The battery configuration is Four 21700 cells. Use the exact model label and rated watt-hours for passenger rules, and request the model-specific battery transport documents for commercial shipping. Destination and carrier rules still apply.




















