---
product_id: 578503924
title: "Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency"
brand: "charmast"
price: "37167 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Charmast"
url: https://www.desertcart.hu/products/578503924-charmast-20000mah-power-bank-with-4-built-in-cables-22
store_origin: HU
region: Hungary
---

# 22.5W super-fast charging 20000mAh massive capacity 4 built-in cables + 4 ports Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency

**Brand:** charmast
**Price:** 37167 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay unstoppable — all your devices, one sleek powerhouse.

## Quick Answers

- **What is this?** Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency by charmast
- **How much does it cost?** 37167 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/578503924-charmast-20000mah-power-bank-with-4-built-in-cables-22)

## 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

- • **Smart Digital Display:** Precise battery percentage keeps you in control, no surprises.
- • **22.5W Fast Charging Power:** Get back to 50% battery in just 30 minutes—never miss a beat.
- • **20000mAh Capacity for Days:** Power through long workdays, travel, or emergencies without worry.
- • **Sleek, Durable & Travel-Ready:** Slim profile with tangle-free cables and protective pouch—charge in style anywhere.
- • **Charge 6 Devices Simultaneously:** Ultimate multi-device power solution for busy pros on the go.

## Overview

The Charmast 20000mAh Power Bank combines massive capacity with 4 built-in cables and 4 extra ports, enabling simultaneous charging of up to 6 devices. Featuring 22.5W fast charging and a smart digital display, it delivers quick, reliable power for iPhone, Android, and tablets. Designed for professionals and travelers, its slim, durable build and included travel pouch make it the ultimate cable-free charging companion for work, travel, and emergencies.

## Description

Free delivery and returns on eligible orders. Buy Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency at desertcart UK.

Review: One of My Favourites! - This is one of my favourite power banks. I love that all the cables are attached, so I don’t need to worry about fiddling around or carrying extra cords, it’s super convenient and hassle-free. It’s really powerful, and once fully charged it lasts a long time, easily getting me through multiple charges. It’s a bit on the bulky side, but honestly I don’t mind because the performance and convenience more than make up for it. Overall, a great power bank that I’d happily recommend.
Review: Great charger, don't hesitate if you need one. - This portable battery is an ideal size: it's about as large a capacity as you can take on to an aeroplane, but physically is a nice size and a shape that would slip into a pocket or bag very nicely. It has a reassuring (but not back breaking) weight, it feels solid and well constructed. The Charmast displays battery charge as a percentage which is much better than the 3-4 little winking lights many other batteries have. The display is located under the surface of the battery case, which is cool. It also has a little green symbol which lights up when quick charge is engaged. The battery uses USB-C for fast charging up. It has two charging USB-A outputs and one quicker charge USB-A socket (colour coded for easy of recognition). You can also quick charge a device via the USB-C socket. This means you can a total of four devices on charge at once! If you charge multiple items you lose the ability to quick charge, but this is a reasonable tradeoff for being able to charge four devices at once (I'm doing this now with a phone, a tablet, a digital camera and a pair of headphones, and it's working flawlessly). There are safety circuits to prevent overheating (the battery did not appear to warm up noticeably while working) and also turns off charging when you devices are full. Battery life seems to be about right for the stated capacity, but I will wait to see how it beds in over repeated cycles. All in all this a a fabulous piece of kit for a very reasonable price, especially when its on offer via desertcart. Recommended!

## Features

- 【All-in-One Power Bank: 4 Built-in Cables + 4 Ports】Stop carrying loose cables! This power bank has 4 fixed cables (USB-C, Lightning, Micro-USB, USB A) and 4 extra ports (USB-C, Micro USB , 2x USB-A) to charge up to 6 devices at once. It’s the ultimate cable-free solution for families, travel buddies, or anyone with multiple gadgets. The built-in USB-A cable even recharges the power bank itself—just plug it into a wall adapter.
- 【22.5W Super-Fast Charging: Power Up in Minutes】 Get back to 50% battery in about 30 minutes for most modern phones. The built-in USB-C and Lightning cables support 20W PD/QC fast charging, while the USB-A port delivers up to 22.5W for compatible Android devices. Perfect for quick top-ups between meetings, during layovers, or in any time-sensitive situation.
- 【20000mAh Travel-Ready Power: Lasts for Days】With enough capacity to fully charge an iPhone 15 up to 4 times, this power bank is your all-day power companion. It’s friendly for air travel and reliable for camping, long commutes, or power outages. Never ration your battery life again.
- 【Smart Digital Display: Always Know Your Exact Battery Life】Plan your day with confidence. The precise LED screen shows remaining power down to 1%, so you’ll never be caught off guard by a dead power bank. It’s smarter and more accurate than traditional 4-dot indicators.
- 【Designed for Real Life: Slim, Durable & Ultra-Convenient】We designed it for the real world: The sleek, pocket-friendly profile fits easily in bags; the built-in cables are sturdy and tangle-free; and the included travel pouch adds extra protection. Everything you need is in one box—power bank, manual, and pouch—ready to simplify your charging chaos.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJBQBB7F |
| Amperage | 2 Amps |
| Battery Capacity | 20000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 68 Grams |
| Battery capacity | 20000 Milliamp Hours |
| Best Sellers Rank | 529 in Climate Pledge Friendly ( See Top 100 in Climate Pledge Friendly ) 13 in Mobile Phone Portable Power Banks 529 in Climate Pledge Friendly: Shop All |
| Brand | charmast |
| Brand Name | charmast |
| Colour | Black-20000mAh |
| Compatible Devices | Smartphone, Smartwatch, Tablet |
| Connector Type | Micro USB |
| Connector type | Micro USB |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 7,169 Reviews |
| Is Electric | Yes |
| Item Dimensions | 16 x 7.2 x 1.9 centimetres |
| Item Dimensions L x W x Thickness | 16L x 7.3W x 1.9Th centimetres |
| Item Weight | 340 Grams |
| Manufacturer | Dong guan Utopia-Originality Technology Co., Ltd |
| Model Number | C2065 |
| Number of Batteries | 2 Lithium Polymer batteries required. (included) |
| Number of Ports | 3 |
| Other Special Features of the Product | Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection |
| Portable | Yes |
| Power Source | Corded Electric |
| Product Warranty | 2 |
| Reusability | Rechargeable |
| Special feature | Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection |
| Unit Count | 1.0 count |
| Voltage | 9 Volts (DC) |

## Product Details

- **Battery capacity:** 20000 Milliamp Hours
- **Brand:** charmast
- **Colour:** Black-20000mAh
- **Connector type:** Micro USB
- **Special feature:** Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection

## Images

![Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency - Image 1](https://m.media-amazon.com/images/I/71tsTZoDenL.jpg)

## Available Options

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

## Questions & Answers

**Q: Why your power bank seems to drain quickly than expected?**
A: Power banks lose energy during charging due to heat and voltage conversion, typically supplying 60%-70% of their power to other devices. Therefore, a fully charged Charmast 20,000mAh power bank can deliver about 12,000-14,000mAh to your devices.

**Q: Can this power bank be taken on airplanes?**
A: Carry-on allowed. Do not pack in checked baggage.

**Q: Does it work with small devices?**
A: Yes. Enable low-current mode for headphones, watches, etc.

**Q: Is it normal for the portable charger and phone to get warm while charging?**
A: Yes. Some warmth is normal during charging and use due to energy conversion. If temperatures exceed 45°C (113°F), stop use immediately.

**Q: Is it compatible with laptops?**
A: No. Use a 30W+ laptop charger instead.

## Customer Reviews

### ⭐⭐⭐⭐⭐ One of My Favourites!
*by Z***A on 16 January 2026*

This is one of my favourite power banks. I love that all the cables are attached, so I don’t need to worry about fiddling around or carrying extra cords, it’s super convenient and hassle-free. It’s really powerful, and once fully charged it lasts a long time, easily getting me through multiple charges. It’s a bit on the bulky side, but honestly I don’t mind because the performance and convenience more than make up for it. Overall, a great power bank that I’d happily recommend.

### ⭐⭐⭐⭐⭐ Great charger, don't hesitate if you need one.
*by D***Y on 16 April 2024*

This portable battery is an ideal size: it's about as large a capacity as you can take on to an aeroplane, but physically is a nice size and a shape that would slip into a pocket or bag very nicely. It has a reassuring (but not back breaking) weight, it feels solid and well constructed. The Charmast displays battery charge as a percentage which is much better than the 3-4 little winking lights many other batteries have. The display is located under the surface of the battery case, which is cool. It also has a little green symbol which lights up when quick charge is engaged. The battery uses USB-C for fast charging up. It has two charging USB-A outputs and one quicker charge USB-A socket (colour coded for easy of recognition). You can also quick charge a device via the USB-C socket. This means you can a total of four devices on charge at once! If you charge multiple items you lose the ability to quick charge, but this is a reasonable tradeoff for being able to charge four devices at once (I'm doing this now with a phone, a tablet, a digital camera and a pair of headphones, and it's working flawlessly). There are safety circuits to prevent overheating (the battery did not appear to warm up noticeably while working) and also turns off charging when you devices are full. Battery life seems to be about right for the stated capacity, but I will wait to see how it beds in over repeated cycles. All in all this a a fabulous piece of kit for a very reasonable price, especially when its on offer via Amazon. Recommended!

### ⭐⭐⭐⭐ Cheap, but good quality
*by G***S on 20 December 2025*

Not as good as Anker, seems to lose power over time, but a lot cheaper. Will definitely last a few years

## Frequently Bought Together

- Charmast Power Bank 20000mAh, 20W Fast Charging Portable Charger with Built-in Cables, USB C Battery Pack, Slim Portable Phone Charger Backup Battery for iPhone, Samsung, iPad, More Phones, Tablets
- Portable Charger with Built in Cables, Portable Charger with Cords Wires Slim 10000mAh Travel Battery Pack 6 Outputs 3 Inputs 3A Fast Charging Power Bank for Samsung Google Pixel LG Moto iPhone iPad

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**Shop now:** [https://www.desertcart.hu/products/578503924-charmast-20000mah-power-bank-with-4-built-in-cables-22](https://www.desertcart.hu/products/578503924-charmast-20000mah-power-bank-with-4-built-in-cables-22)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-08*