---
product_id: 582732962
title: "V25"
brand: "voltaic systems"
price: "R1992"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/582732962-v25
store_origin: ZA
region: South Africa
---

# 5V/2A output Solar optimized cells 6,400mAh capacity V25

**Brand:** voltaic systems
**Price:** R1992
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your adventures, never miss a moment!

## Quick Answers

- **What is this?** V25 by voltaic systems
- **How much does it cost?** R1992 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/582732962-v25)

## 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

- • **Dual Output:** Charge two devices simultaneously with 3A max output.
- • **Solar-Ready:** Harness the sun's energy with high-quality Li-ion cells.
- • **Power Up Anywhere:** Stay charged with 1.5 smartphone charges on the go!
- • **Always On Convenience:** Perfect for sensors and time-lapse applications.
- • **Versatile Compatibility:** Works seamlessly with iPhone, iPad, Samsung, and more.

## Overview

The V25 6,400mAh USB Always On Battery Backup Power Bank is designed for the modern professional, providing reliable power for smartphones and tablets. With solar-optimized Li-ion cells, dual output capabilities, and an 'Always On' feature, this power bank ensures you stay connected and charged, no matter where your day takes you.

## Description

Voltaic Systems V25 6,700mAh USB Always On Battery Backup Power Bank for iPhone, iPad, Samsung Galaxy, Android, and HTC Devices

## Features

- SOLAR OPTIMIZED - High quality, high temperature Li-ion cells tested and optimized for solar applications.
- CAPACITY - 6,400mAh / 23 watt hours provides 1.5 charges to smart phones, .65 charges to 7" tablets. Designed for use with Voltaic solar chargers, solar panels, and accessories.
- POWER OUTPUT / INPUT - Output: 5V/2A, 3A max (2 outputs) MicroUSB, Input: 5-6V/2A USB-C, Input: 5V/2A
- PACKAGE INCLUDES - The Voltaic V25 battery and 1 USB to MicroUSB Charging Cable
- ALWAYS ON FEATURE - Voltaic's upgraded "Always On" feature makes it easy and efficient to use with various sensor or time lapse applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZS3WYZY |
| Amperage | 2 Amps |
| Antenna Location | Solar Devices |
| Battery Capacity | 6700 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 230 Grams |
| Best Sellers Rank | #150,437 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,890 in Cell Phone Portable Power Banks |
| Brand | Voltaic Systems |
| Color | Silver |
| Compatible Devices | Arduino, Hearing Aid, Raspberry Pi, Smartphone |
| Connector Type | USB Type C |
| Customer Reviews | 4.5 out of 5 stars 174 Reviews |
| Item Dimensions | 3.15 x 3.22 x 0.95 inches |
| Item Dimensions L x W x Thickness | 3.15"L x 3.22"W x 0.95"Th |
| Manufacturer | Voltaic Systems |
| Mfr Part Number | V25 |
| Model Number | V25 |
| Number of Batteries | 1 Nonstandard Battery batteries required. |
| Number of Items | 1 |
| Number of Ports | 5 |
| Other Special Features of the Product | Always On, Solar Charging |
| Power Source | Solar Powered |
| Reusability | Rechargeable |
| Special Feature | Always On, Solar Charging |
| Unit Count | 1.0 Count |
| Voltage | 5 Volts |
| Warranty Description | 1 Year Manufacturer |

## Product Details

- **Battery Capacity:** 6700 Milliamp Hours
- **Brand:** Voltaic Systems
- **Color:** Silver
- **Connector Type:** USB Type C
- **Special Feature:** Always On, Solar Charging

## Images

![V25 - Image 1](https://m.media-amazon.com/images/I/71IqAg4knhL.jpg)
![V25 - Image 2](https://m.media-amazon.com/images/I/111mHoVK0kL._SS200_.png)

## 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.

## 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)
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**Shop now:** [https://www.desertcart.co.za/products/582732962-v25](https://www.desertcart.co.za/products/582732962-v25)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-05-08*