---
product_id: 657135203
title: "charmast Portable Charger Built-in Cables, 20000mAh Power Bank 6-Output"
brand: "charmast"
price: "¥12404"
currency: JPY
in_stock: true
reviews_count: 13
category: "Charmast"
url: https://www.desertcart.jp/products/657135203-charmast-portable-charger-built-in-cables-20000mah-power-bank-6
store_origin: JP
region: Japan
---

# 22.5W fast charge 20000mAh powerhouse 6 simultaneous outputs charmast Portable Charger Built-in Cables, 20000mAh Power Bank 6-Output

**Brand:** charmast
**Price:** ¥12404
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your life, anywhere, anytime!

## Quick Answers

- **What is this?** charmast Portable Charger Built-in Cables, 20000mAh Power Bank 6-Output by charmast
- **How much does it cost?** ¥12404 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/657135203-charmast-portable-charger-built-in-cables-20000mah-power-bank-6)

## Best For

- charmast enthusiasts

## Why This Product

- Trusted charmast brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unstoppable Power Bank:** Get 3-4 full phone charges on the go—never run out during your busiest days or wildest adventures.
- • **Precision Battery Meter:** Digital display shows exact battery percentage—no more guessing, no more surprises.
- • **Multi-Device Charging Hub:** Power up to 6 devices at once—perfect for managing your entire tech ecosystem without compromise.
- • **Built-In Cable Convenience:** Say goodbye to cable chaos with integrated USB-C, Micro-USB, and Lightning cables—charge any device instantly.
- • **Flight-Ready & Travel-Savvy:** Compact, lightweight, and airline-approved (77Wh) so you stay powered worldwide without hassle.

## Overview

The charmast Portable Charger is a sleek, 20000mAh power bank featuring 6 output ports and built-in USB-C, Micro-USB, and Lightning cables. It delivers fast 22.5W charging, supports simultaneous charging of multiple devices, and includes a precise digital battery display. Compact and flight-approved, it’s designed for professionals and travelers who demand reliable, on-the-go power without cable clutter.

## Description

desertcart.com: charmast Portable Charger Built-in Cables, 20000mAh Power Bank 6-Output | Travel Fast Charging Battery Pack for iPhone 17/16/15 Samsung Android, Flight-Approved, Multi-Device, USB-C & USB-A, LED % : Cell Phones & Accessories

Review: Best portable charger 10/10 - Honestly the portable charger ever it last a very long time honestly! The size is good as well! The weight is not heavy compared to others! I also love that it last me about a good 3 - 4 days without needing to be charged. I also like that it does not make your phone over heat or drain the battery instead it actually works wonderful! I love this model and the amount of charging power it was compared to others! My husband got this gifted from his grandfather before he left to army bootcamp and it lasted him about 1 month before he had to find a charger to actually charge his phone when they got free time! (He got his phone every Sunday for 1 hour usually) That made me buy myself one because he told me from experience they are amazing! Also the color is cute! I got a pink one but he has the grey one! I will be buying more in the future if I need to buy 10/10! I recommend for the airport, concert, hike, camping, travel, etc.
Review: Perfect for Long Sports Days and Weekend Games - I got this portable charger because both of my kids play sports, and we spend hours at the fields, sometimes for an entire weekend. I needed something reliable to keep my phone charged and also recharge my youngest child’s tablet during long games. This has been perfect for us. The battery lasts a long time, and it charges our phones and tablet quickly. I also really like having the built-in cables because I don’t have to remember to bring extra cords. It has become something I always bring in our sports bag. Very practical and reliable for busy families who are away from an outlet for hours.

## Features

- Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges - ideal for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel
- 3-in-1 Built-in Cables: No more hunting for cables! This power bank has USB-C and Micro-USB cables built in, compatible with iPhone and most devices — just plug in and charge. No cord clutter, no hassle
- Wide Compatibility: Compatible with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle and most tablets. No more carrying multiple chargers — one power bank covers your entire tech lineup
- 22.5W Fast Charging: Get up to a 50% charge in about 30 minutes with 22.5W fast charging. Ideal for quick power-ups before meetings, commutes or when you're rushing out the door
- Exact Battery % — No More Guessing: Unlike basic 4-light indicators, the digital display shows precise remaining power from 0–100%, just like your phone. No more unexpected shutdowns
- Charge 6 Devices at Once: 6 output ports power your phone, tablet, earbuds and smartwatch simultaneously — no more choosing which device to charge first. Ideal for multi-device users
- Double the Power, Minimal Extra Weight: 20,000mAh capacity (2× a standard 10K charger) in a slim 6.3 × 2.85 × 0.72 in design. Slightly heavier than 10K models but holds twice the energy — fits anywhere a paperback book would
- Flight-Friendly Portable Power: At 77Wh, well under the 100Wh airline carry-on limit. Always pack in your carry-on bag only — not permitted in checked luggage. A reliable power companion for flights and travel
- Dual Voltage 100V–240V: The built-in cables support worldwide voltage — no converter needed. Ideal for travel across the US, Europe, Asia and beyond.
- Complete Package: 1 x power bank, 1 x use manual, 1 x travel pouch. Backed by 36-month support and technical assistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D6RGX7JN |
| Antenna Location | Compatible with all Samsung and Pixel models, mainstream Android phones, Compatible with iPad, Tablet, Compatible with iPhone 14/13/12/11/XR, all series, etc, Compatible with iPhone 16/15 Pro/Pro Max series, Compatible with iPhone 17/iPhone 17 Pro/iPhone 17 Pro Max |
| Battery Capacity | 20000 milliamp_hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 6 hours |
| Battery Weight | 148 g |
| Best Sellers Rank | #835 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #69 in Cell Phone Portable Power Banks |
| Brand | charmast |
| Color | Dusty Pink |
| Compatible Devices | Compatible with all Samsung and Pixel models, mainstream Android phones, Compatible with iPhone 14/13/12/11/XR, all series, etc, Compatible with iPhone 16/15 Pro/Pro Max series, Compatible with iPhone 17/iPhone 17 Pro/iPhone 17 Pro Max, Tablet |
| Compatible Phone Models | For iPhone, Android |
| Connector Type | For iPhone, USB-C, USB-A, Micro |
| Customer Reviews | 4.6 out of 5 stars 1,518 Reviews |
| Included Components | 20000mAh Portable Charger, Storage Bag, User Manual |
| Item Dimensions | 6.3 x 2.85 x 0.75 inches |
| Item Dimensions L x W x Thickness | 6.3"L x 2.85"W x 0.75"Th |
| Item Weight | 340 g |
| Manufacturer | Dong guan Utopia-Originality Technology Co., Ltd |
| Model Name | C2065 |
| Model Number | C2065 |
| Number of Batteries | 2 Lithium Polymer batteries required. (included) |
| Number of Items | 1 |
| Number of Ports | 10 |
| Other Special Features of the Product | Auto Shut-Off, Built In Cable, Digital Display, Fast Charging, High Capacity |
| Output Current | 4.5 A |
| Power Source | Corded Electric |
| Rapid Charging Performance | 55% in 1 Hour |
| Reusability | Rechargeable |
| Special Feature | Auto Shut-Off, Built In Cable, Digital Display, Fast Charging, High Capacity |
| Unit Count | 1 Count |
| Voltage | 12 volts_of_direct_current |
| Warranty Description | 36-Month Warranty |
| Warranty Type | 36-month support |

## Product Details

- **Battery Capacity:** 20000 milliamp_hours
- **Brand:** charmast
- **Color:** Dusty Pink
- **Connector Type:** For iPhone, USB-C, USB-A, Micro
- **Special Feature:** Auto Shut-Off, Built In Cable, Digital Display, Fast Charging, High Capacity

## Images

![charmast Portable Charger Built-in Cables, 20000mAh Power Bank 6-Output - Image 1](https://m.media-amazon.com/images/I/51wyo4xHq7L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: What should I do if the power bank fails to charge my device?**
A: Please tell the seller directly via Amazon. We will promptly troubleshoot the issue and provide effective solutions for you.

**Q: What should I if the power bank loses power quickly?**
A: Please tell the seller directly via Amazon. We will help you troubleshoot and resolve the issue in a timely and effective manner.

**Q: How do I charge the portable charger? Do I need to purchase a different cord?**
A: You can recharge the powerbank via its attached recharging cord, or you can get a seperated A to C or C to C cable to recharge the powerbank.

**Q: How long it will take to fully recharged the power bank?**
A: 6 hours (via built-in USB-C cable & USB-C port); 12 hours (via built-in USB-A cable)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best portable charger 10/10
*by K***Z on October 13, 2026*

Honestly the portable charger ever it last a very long time honestly! The size is good as well! The weight is not heavy compared to others! I also love that it last me about a good 3 - 4 days without needing to be charged. I also like that it does not make your phone over heat or drain the battery instead it actually works wonderful! I love this model and the amount of charging power it was compared to others! My husband got this gifted from his grandfather before he left to army bootcamp and it lasted him about 1 month before he had to find a charger to actually charge his phone when they got free time! (He got his phone every Sunday for 1 hour usually) That made me buy myself one because he told me from experience they are amazing! Also the color is cute! I got a pink one but he has the grey one! I will be buying more in the future if I need to buy 10/10! I recommend for the airport, concert, hike, camping, travel, etc.

### ⭐⭐⭐⭐⭐ Perfect for Long Sports Days and Weekend Games
*by D***S on September 7, 2026*

I got this portable charger because both of my kids play sports, and we spend hours at the fields, sometimes for an entire weekend. I needed something reliable to keep my phone charged and also recharge my youngest child’s tablet during long games. This has been perfect for us. The battery lasts a long time, and it charges our phones and tablet quickly. I also really like having the built-in cables because I don’t have to remember to bring extra cords. It has become something I always bring in our sports bag. Very practical and reliable for busy families who are away from an outlet for hours.

### ⭐⭐⭐⭐⭐ My holy Grail charger
*by A***A on August 29, 2026*

i love this battery bank. i take it everywhere I go in my purse. it holds charge very well and charges my phone more than 2x and pretty steady charging speed. i like that it has different built in cables for other devices for friends in a pinch without carrying the adapter. the bad side is that it adds weight, but not too bulky. i just wouldn't bring it on a small fanny pack as an essential but more like a travel item. it takes a long time to fully charge and can get warm when charging a device, but the amount of power it holds has lasted longer than any power bank I've owned the 20,000 mAh is no joke. it's just as pictured.

## Frequently Bought Together

- Charmast 20000mAh Portable Charger with 4 Built-in Cables & 6 Outputs, 20W Power Bank Fast Charging - USB C External Battery Pack for iPhone 16 15 14, Android, iPad, Tablet & More (Travel Essential)
- Charmast 20000mAh Portable Charger with 4 Built-in Cables & 6 Outputs, 20W Power Bank Fast Charging - USB C External Battery Pack for iPhone 16 15 14, Android, iPad, Tablet & More (Travel Essential)

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**Shop now:** [https://www.desertcart.jp/products/657135203-charmast-portable-charger-built-in-cables-20000mah-power-bank-6](https://www.desertcart.jp/products/657135203-charmast-portable-charger-built-in-cables-20000mah-power-bank-6)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-21*