Product Overview
The charmast 20000mAh Portable Charger with Built-in Cables is a high-capacity power bank designed for users who need reliable, on-the-go charging without the hassle of extra cords. Ideal for iPhone and Android device owners, travelers, and busy professionals, this power bank delivers fast charging across multiple devices simultaneously. With integrated USB-C, Lightning, and Micro-USB cables, it eliminates cable clutter and ensures compatibility with nearly all smartphones, tablets, and accessories like AirPods or smartwatches.
This portable charger supports up to 6 output ports and features a precise digital LED display showing exact battery percentage—no more guessing when it’s time to recharge. Whether you’re traveling, commuting, or dealing with an unexpected power outage, this power bank keeps your devices charged longer than standard models while remaining compact enough to fit in any bag.
Key Features
- Built-in Cables for Instant Use: Includes permanently attached USB-C, Lightning, and Micro-USB cables—no searching for adapters or carrying extra cords. Simply plug in and charge your compatible device directly.
- High-Speed 22.5W PD Fast Charging: Supports Power Delivery (PD) and Quick Charge (QC), enabling rapid charging that can deliver 50% battery in about 30 minutes—faster than most wall chargers.
- Digital Battery Display: Unlike traditional multi-light indicators, this power bank shows real-time battery levels from 0% to 100%, so you always know how much power remains before recharging.
- Massive 20000mAh Capacity: Provides approximately 3–4 full charges for most smartphones, making it perfect for long trips, outdoor adventures, or emergency situations.
- Multiple Recharge Methods: Can be recharged via its built-in USB-A or USB-C input using included cables or separately purchased A-to-C or C-to-C cables.
- Six Simultaneous Output Ports: Charge up to six devices at once—phones, tablets, earbuds, watches, and more—without prioritizing one over another.
- Universal Compatibility: Works with iPhones (all models including 16/15/14/13/12/11 series), iPads, Samsung Galaxy, Google Pixel, Android phones, Kindles, and most tablets supporting standard USB power delivery.
Technical Specifications
- Capacity: 20000mAh
- Micro Input: 5V-2A / 9V-2A / 12V-1.5A
- USB-C Input: 5V-2A / 9V-2A / 12V-1.5A
- USB-A Cable Input: 5V-2A
- USB-C Cable Input: 5V-2.6A / 9V-2A / 12V-1.5A
- USB-C Cable Output: 5V-3A / 9V-2.22A / 12V-1.67A
- Cable Output (for iPhone): 5V-2.4A / 9V-2.22A
- Micro Cable Output: 5V-2.4A
- USB-A Output 1: 5V-2.4A
- USB-A Output 2: 4.5V-5A / 5V-4.5A / 9V-2A / 12V-1.5A
- Recharging Time: 6 hours (via built-in USB-C port); 12 hours (via built-in USB-A port)
- Compatibility: All cellphones, iPhones & iPads, Android phones, tablets, and 5V/9V/12V USB-powered devices
Benefits & Use Cases
This portable charger is ideal for frequent travelers, business commuters, festival-goers, and anyone who relies heavily on their mobile devices throughout the day. Its large 20000mAh capacity means you can charge your phone multiple times during flights, road trips, or camping excursions without needing an outlet.
The built-in cables mean you never have to worry about losing or misplacing a charging cord—perfect for those always on the move. The digital display gives peace of mind by showing exactly how much power is left, eliminating surprise shutdowns.
With support for both Power Delivery and Quick Charge protocols, it safely charges modern smartphones faster than conventional chargers. Low-power accessories like wireless earbuds, fitness trackers, or portable fans can also be powered using the dedicated low-current mode—activated by holding the ON/OFF button for 5–10 seconds.
Important Notes
The charmast power bank meets airline safety regulations and qualifies as carry-on luggage, but should not be placed in checked baggage due to lithium-ion battery restrictions.
It includes a universal voltage adapter (110V–240V), so it works globally without needing a converter—ideal for international travel.
Package contents: 1 x power bank with built-in cables, 1 x user manual, 1 x travel pouch. Customer support includes 36 months of warranty coverage and lifetime technical assistance.
