---
product_id: 21936480
title: "OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver)"
brand: "brand: opes"
price: "¥2055"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/21936480-opes-20000mah-power-bank-high-capacity-reliable-ultra-slim-3
store_origin: JP
region: Japan
---

# OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver)

**Brand:** brand: opes
**Price:** ¥2055
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) by brand: opes
- **How much does it cost?** ¥2055 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/21936480-opes-20000mah-power-bank-high-capacity-reliable-ultra-slim-3)

## Best For

- brand: opes enthusiasts

## Why This Product

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

## Description

High capacity OPES 20000mAH can charge smart phones, tablets, MP3/Mp4 players, game consoles, digital cameras and many more devices multiple times faster than a regular USB charger Built-in preventive supports for over-charging, over-discharging, over-voltage, over-current and short circuit protection. These features protect the device from damage and increases the device life expectancy.  Superior Li-Polymer battery technology has improved performance at low and high temperatures preserving good battery life.  FREE Included multi-USB charging cable enables simultaneous charging of multiple USB devices. Supports iPhones, iPad, Samsung, Android  LED indicator stays on and shows you the energy state of the device at any given time SpecificationsInput: DC5v/2A Output:DC5v/2.1A, DC5v/1A Capacity: 20,000mAH Weight: 490g / 1.1 lb Size: 166*110*13mm/ 6.6*4.4*0.52 inches(L*W*H)SPECIAL HOLIDAY OFFER

## Features

- SPECIAL HOLIDAY OFFER - OPES20000mAH is an Ultra high capacity power bank for iPhone 6 Plus/6s/6 plus/6/5s, iPad, Samsung, Android, MP4/MP3 players, many digital cameras, tablets, game consoles and many more.
- Dual USB port with 3.1A output capacity charges two devices simultaneously on the go and at home. Faster charging speed of 2.1 amps port can charge many devices at 10 times faster
- Ultra-Slim design with high quality rechargeable Li-Polymer battery and hard aluminum alloy construction is a solid and very convenient to carry around at anytime and anywhere.
- Li-Polymer battery technology provide safer and more reliable device for everyday use.
- FREE MULTI-USB CHARGING CABLE IS INCLUDED WITH ALL PURCHASES - available colors are: Blue, Yellow and Orange

## Images

![OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41LDIUbD85L.jpg)
![OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) - Image 2](https://images-na.ssl-images-amazon.com/images/I/310myb55hNL.jpg)
![OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) - Image 3](https://images-na.ssl-images-amazon.com/images/I/61vqMFcOsgL.jpg)
![OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) - Image 4](https://images-na.ssl-images-amazon.com/images/I/61K6TnGZ8zL.jpg)
![OPES 20000mAH Power Bank, High Capacity, Reliable, Ultra-Slim, 3.1A Output, Dual USB Port for iPhone, Samsung, Android, MP4/MP3 Player, Digital Camera, Game Console and Tablets (Silver) - Image 5](https://images-na.ssl-images-amazon.com/images/I/31hs%2BqZHzFL.jpg)

## Customer Reviews

### ⭐⭐⭐ 







  
  
    Wrong color sent. For 3 days has worked ok
  

*by E***Z on Reviewed in the United States on May 18, 2018*

The powerbank came in pink, (not my favorite color), it was supposed to be gokden.For 3 days has worked ok.

### ⭐⭐⭐⭐ 







  
  
    First let me say that the power bank itself is great. Durable
  

*by M***T on Reviewed in the United States on March 27, 2016*

First I'm going to say that I'm not a tech person, but I do feel confident enough to leave a review for those that just want to get down to the point.  I bought this power bank for my child's iPad on our upcoming trip.  First let me say that the power bank itself is great.  Durable, will withstand a beating if it's dropped (since our household has already done this several times) and I love how the indicator tells you how much power is remaining.  It's a little big and bulky but that was ok in my mind if it's going to hold a ton of power.  In total after we got it, it took about 4-5 hours to fully charge the bank.  Ok...so here is my reason for the 4 stars.  As I mentioned we got this to recharge an ipad.  After the bank was fully charged, we decided to put it to the test on a 51% battery of an iPad.  So it took about 3 hours to charge our iPad to 96% and drained the power bank down to 55%.  So in theory, this power bank will only charge ONE iPad that is fully dead, and it will take approximately 6 hours?  Alright so it charges one iPad fully which is great, but not good enough and therefore I gave it 4 stars.  And 4 stars because we tested it out on our fully dead iPhone 6 and it only drain the power bank only about 30%...which in theory would charge my phone 3 times.  I would say this is a great power bank depending on what you need it for and for how long.  I did receive this product at a discount for my honest and unbiased review which is clearly what you got.  Hope my review helps in your purchasing decision.

### ⭐⭐⭐⭐ 







  
  
    When I recieved the opes 20000mAH power bank I liked how it was packaged nicely with the unit and ...
  

*by E***N on Reviewed in the United States on December 31, 2015*

When I recieved the opes 20000mAH power bank I liked how it was packaged nicely with the unit and the pieces for charging. I really like how it gives you that extra piece so you can choose which accessory is right for you whether it's a micro USB, USB, lighting, etc. this is a must for any charger when your out and about.The first thing you notice about this product is its size. It's bigger than most portable chargers but then again your getting 20000mah. And you can see the size description of the 4th photo in the description from the manufacturer so it shouldn't come as a surprise. I just thought it was good to point out. It would still fit nicely in a messenger bag but not something your putting in pocket book.It comes charged halfway. Mine was at 45 percent. I plugged it in overnight to get to 100 percent. I will continue to update this review over time with recharges. It lasts too recharge my iPhone, accessories, and iPad a few times before even thinking about recharging.This unit is a power house for sure. I do like the slim design. The size itself is bigger than I might originally want but all of its power comes from it. The only reason I didn't give the fifth star is because of the size. As a guy it's not as easy to carry around unseen. But this is great for the car, office, travel, and multiple devices.Disclaimer - I recieved this product at a discount for an unbiased and honest review.

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**Shop now:** [https://www.desertcart.jp/products/21936480-opes-20000mah-power-bank-high-capacity-reliable-ultra-slim-3](https://www.desertcart.jp/products/21936480-opes-20000mah-power-bank-high-capacity-reliable-ultra-slim-3)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*