---
product_id: 388165355
title: "Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices"
brand: "voltaic systems"
price: "896.71 DT"
currency: TND
in_stock: true
reviews_count: 1
category: "Voltaic Systems"
url: https://www.desertcart.tn/products/388165355-voltaic-systems-v25-6-700mah-usb-always-on-battery-backup
store_origin: TN
region: Tunisia
---

# 2A fast charging output 6,700mAh high-capacity power 5 USB ports for multi-device power Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices

**Brand:** voltaic systems
**Price:** 896.71 DT
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay unstoppable — never miss a moment!

## Quick Answers

- **What is this?** Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices by voltaic systems
- **How much does it cost?** 896.71 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/388165355-voltaic-systems-v25-6-700mah-usb-always-on-battery-backup)

## Best For

- voltaic systems enthusiasts

## Why This Product

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

## Key Features

- • **Fast & Efficient:** 2 Amp output delivers rapid, reliable charging
- • **Smart Auto Shut Off:** Saves power by turning off when devices are fully charged
- • **Compact & Travel-Ready:** Sleek 8x8.2x2.4 cm design fits perfectly in your bag or pocket
- • **Power That Keeps You Moving:** 6,700mAh capacity fuels your devices all day long
- • **Charge Multiple Devices Simultaneously:** 5 USB ports mean no one gets left behind

## Overview

The Voltaic Systems V25 is a rechargeable 6,700mAh USB power bank featuring 5 ports and a 2 Amp output for fast, simultaneous charging of smartphones and tablets. Its smart auto shut off conserves energy, while its compact design ensures portability for professionals on the go.

## Description

Shop Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices. Free delivery and returns on eligible orders.

Review: First one was faulty. Second one good - No idea whether they have quality control. First one was clearly faulty (no power from the right hand USB port). So easy to test before it leaves production for something twice the price of a normal USB power bank. But - the second one is fine and quite good. A shame it doesn’t have a small display for power level - just four little lights.

## Features

- Auto Shut Off

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZS3WYZY |
| Amperage | 2 Amps |
| Battery Capacity | 6400 Milliamp Hours |
| Battery capacity | 6400 Milliamp Hours |
| Best Sellers Rank | 908 in Mobile Phone Portable Power Banks |
| Brand | Voltaic Systems |
| Brand Name | Voltaic Systems |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | Htc,Iphone |
| Connector Type | Usb |
| Connector type | Usb |
| Country of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 2 Reviews |
| Item Dimensions | 8 x 8.2 x 2.4 centimetres |
| Manufacturer | FENRIR |
| Manufacturer Part Number | V25 |
| Model Number | V25 |
| Number of Batteries | 1 Nonstandard Battery batteries required. |
| Number of Ports | 5 |
| Other Special Features of the Product | Auto Shut Off |
| Output Current | 1 Amps |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Reusability | Rechargeable |
| Special feature | Auto Shut Off |
| Unit Count | 1.0 count |
| Voltage | 5 Volts |

## Product Details

- **Battery capacity:** 6400 Milliamp Hours
- **Brand:** Voltaic Systems
- **Connector type:** Usb
- **Special feature:** Auto Shut Off
- **Voltage:** 5 Volts

## Images

![Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices - Image 1](https://m.media-amazon.com/images/I/71IqAg4knhL.jpg)
![Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices - Image 2](https://m.media-amazon.com/images/I/61Myn4YoRUL.jpg)
![Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices - Image 3](https://m.media-amazon.com/images/I/61WwpOy54NL.jpg)
![Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices - Image 4](https://m.media-amazon.com/images/I/514vy5FZUIL.jpg)
![Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices - Image 5](https://m.media-amazon.com/images/I/71VuKvAM8CL.jpg)

## Questions & Answers

**Q: where is this made?**
A: Both of mine were made in China, mine are the smaller ones that I use to power a camera that won't draw enough current to keep other batteries from shutting down.

**Q: Can you connect 2 units together for double the charge  ?**
A: Hello - if you mean double the capacity, we would suggest using the V50 - https://www.amazon.com/Voltaic-Systems-Always-External-Battery/dp/B00XZ7YU4M/

If you mean double the current (4A), it is possible with something like this "splitter" cable - https://www.amazon.com/HIGHROCK-Enhancer-Female-Charge-Extension/dp/B00NIGO4NM/r

**Q: How do you know when it's fully charged ?**
A: If connected to a power source like USB or a 5 or 6 Volt solar panel, the lights will blink when charging. When fully charged, all 4 LEDs will turn solid.

**Q: Can I plug in into a wall outlet & keep drawing power from it always? I do not have any solar need. Any other product recommendation for my purposes?**
A: Yes, the V25 has "pass through charging." It can accept a full charge and discharge at the full rate at the same time. If your power shuts off, there is no lag in power to your device. Customers do use it as a UPS.

## Customer Reviews

### ⭐⭐⭐⭐ First one was faulty. Second one good
*by A***! on 2 April 2026*

No idea whether they have quality control. First one was clearly faulty (no power from the right hand USB port). So easy to test before it leaves production for something twice the price of a normal USB power bank. But - the second one is fine and quite good. A shame it doesn’t have a small display for power level - just four little lights.

## Frequently Bought Together

- Voltaic Systems V25 6,400mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices (Gray)
- Dusproof Waterproof IP 68 Lighting Breather Screw Air Vent Pressure Reduce Valve M12x1.5 Venting Screw Breather Plug - 2Pack
- QILIPSU 3/4 NPT Nylon Cable Gland, Waterproof IP68 Adjustable Locknut for 13-18mm Cable Diameter (3/4 NPT, 6pcs)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/388165355-voltaic-systems-v25-6-700mah-usb-always-on-battery-backup](https://www.desertcart.tn/products/388165355-voltaic-systems-v25-6-700mah-usb-always-on-battery-backup)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-08*