---
product_id: 366832514
title: "ROMOSS Powerbank 40000mAh"
brand: "romoss"
price: "¥31465"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/366832514-romoss-powerbank-40000mah
store_origin: JP
region: Japan
---

# Fast Charging tech Compact for backpacks, not pockets 40000mAh ultra-high capacity ROMOSS Powerbank 40000mAh

**Brand:** romoss
**Price:** ¥31465
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Stay charged, stay unstoppable – power that keeps pace with your hustle!

## Quick Answers

- **What is this?** ROMOSS Powerbank 40000mAh by romoss
- **How much does it cost?** ¥31465 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/366832514-romoss-powerbank-40000mah)

## Best For

- romoss enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Black Finish:** Professional matte black look that complements your tech-savvy lifestyle.
- • **Rapid Fast Charging:** Cut downtime with advanced fast charging that fuels your devices in record time.
- • **Rugged & Reliable Design:** Built tough for on-the-go professionals who demand durability and performance.
- • **Massive 40000mAh Capacity:** Power through multiple devices and days without hunting for outlets.
- • **Perfect for Travel & Outdoor:** Ideal companion for backpackers and road warriors needing serious power off-grid.

## Overview

The ROMOSS Powerbank 40000mAh is a high-capacity, fast-charging portable battery pack designed for professionals and travelers. Weighing just under 1kg, it’s optimized for backpack use rather than pocket carry, delivering reliable power for multiple devices with a sleek black finish and robust build quality.

## Description

Romoss PEA40 Powerbank 40000mAh (black)

Review: Die Powerbank ist wirklich gut. Leistung Satt!!!! Für Unterwegs in die Hosentasche stecken ist nicht :) zu gross und zu zuschwer. aber für Rucksack oder zum Laden im Auto kein problem.
Review: Sono stati squisiti nel sostituirmi il prodotto, che per quanto robusto e potente di ricarica, era troppo pesante per me.

## Features

- 6958377509289
- PEA40-112-2135

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B087C23HPK |
| Batteries | 4 Lithium Polymer batteries required. |
| Colour | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (27) |
| Date First Available | 20 Jun. 2020 |
| Item Weight | 952 g |
| Item model number | PEA40 |
| Other display features | CE |
| Product Dimensions | 16.99 x 8.1 x 4.39 cm; 952 g |
| Special features | Fast Charging |
| What’s in the box | 1 package |

## Product Details

- **Battery capacity:** 40000 Milliamp Hours
- **Brand:** ROMOSS
- **Colour:** Black
- **Connector type:** Usb
- **Special feature:** Fast Charging

## Images

![ROMOSS Powerbank 40000mAh - Image 1](https://m.media-amazon.com/images/I/314XX3fW4FL.jpg)
![ROMOSS Powerbank 40000mAh - Image 2](https://m.media-amazon.com/images/I/413-Yirf8pL.jpg)
![ROMOSS Powerbank 40000mAh - Image 3](https://m.media-amazon.com/images/I/413FEK9zPuL.jpg)
![ROMOSS Powerbank 40000mAh - Image 4](https://m.media-amazon.com/images/I/418ET6Lfp4L.jpg)
![ROMOSS Powerbank 40000mAh - Image 5](https://m.media-amazon.com/images/I/41HMfeDc0QL.jpg)

## Questions & Answers

**Q: How many watt hours? tsa require less than 300 watt hours to bring a device. i would like one that i could carry on with me thanks if you know :)**
A: The batter inside is rated at 3.7 volts, and 40000mAh (40Ah) results in 40x3.7 watts for 1 hour which is 148 whr.

**Q: Viene con cargador?**
A: Siiii lo trae

**Q: Will this work to power a gopro hero10?**
A: Yes easily, it has more than enough power.

**Q: Where is it made ?**
A: The brick is made in China

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***O on 13 March 2024*

Die Powerbank ist wirklich gut. Leistung Satt!!!! Für Unterwegs in die Hosentasche stecken ist nicht :) zu gross und zu zuschwer. aber für Rucksack oder zum Laden im Auto kein problem.

### ⭐⭐⭐⭐⭐ Review
*by G***I on 27 October 2023*

Sono stati squisiti nel sostituirmi il prodotto, che per quanto robusto e potente di ricarica, era troppo pesante per me.

### ⭐⭐⭐⭐⭐ Review
*by M***Z on 14 July 2023*

En general muy satisfecho con el producto, ta un amplio margen de uso con la dashcam, con la que frecuentemente la uso en modo vigilancia o para cargar dispositivos. La única pega, que el tiempo para cargarla es muy elevado, eso que la estoy cargando con un cargador potente de 120 W.

## Frequently Bought Together

- ROMOSS Power Bank, 40,000mAh 18W Portable Phone Charger with USB C Fast Charging, External Battery Pack Compatible with iPad, iPhone 15, Samsung, Tablet, Steam Deck
- ROMOSS Power Bank, 30,000mAh Portable Charger with 30W USB-C Fast Charging for ipad, External Battery Pack with 3 Outputs& 3 Inputs for iPhone15/14/13/12, Sumsung and More (30000mAh)
- ROMOSS 60,000mAh Large Power Bank, High Capacity Portable Charger 22.5W USB C Fast Charging, Long Lasting External Battery Pack with 4 Outputs & 3 Inputs for iPad, iPhone, Samsung, Switch and More

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**Shop now:** [https://www.desertcart.jp/products/366832514-romoss-powerbank-40000mah](https://www.desertcart.jp/products/366832514-romoss-powerbank-40000mah)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*