# 4smarts UltiMag Portable Battery 20000 mAh

**URL:** https://aio.lv/en/product--4smarts-540244--6927434
**Data updated:** 2026-02-12 14:22 (EET)
**Category:** Portable Solar Power Banks
**Manufacturer:** 4smarts
**Manufacturer code:** 540244
**EAN:** 4252011904228
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 48.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 40.49 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--4smarts-540244--6927434

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The 4smarts UltiMag Portable Battery features a powerful 20000 mAh Lithium Polymer (LiPo) capacity, ensuring your devices stay charged on the go. It supports Quick Charge 3.0 for fast charging, with 2 USB Type-A output ports and 1 USB Type-C port. Enjoy the convenience of wireless charging with a total output power of 20 W and an output current of 3 A. Available in sleek Black and Green colors, this battery is perfect for any tech enthusiast.

## Long description

The 4smarts UltiMag Portable Battery 20000 mAh is a high-capacity power bank designed to keep smartphones, tablets and other USB-powered devices charged during travel, work or daily use. With a 20000 mAh Lithium Polymer (LiPo) cell, multiple output ports and support for Quick Charge 3.0, it provides a combination of capacity and fast-charging capability in a compact, pocketable housing. The model also includes wireless charging functionality and a total output power rating that supports modern mobile devices.
Advantages
The portable battery offers a large 20000 mAh capacity that delivers multiple full charges for typical smartphones and extended runtime for tablets and accessories. Quick Charge 3.0 support accelerates charging of compatible devices through the USB Type-A ports, while the USB Type-C port provides flexible two-way connectivity for input and output. Wireless charging adds cable-free convenience for Qi-compatible phones. The unit is supplied in sleek color options and combines safety features typical for LiPo-based power banks with useful output current levels up to 3 A.
Suitable for
 Charging smartphones and tablets while travelling
 Powering headphones, smartwatches and other small USB accessories
 Providing backup power during meetings or commuting
 Use in workplaces, remote locations or on overnight trips
Key specifications
 Battery type: Lithium Polymer (LiPo)
 Capacity: 20000 mAh
 Output ports: 2 × USB Type-A, 1 × USB Type-C
 Fast charging: Quick Charge 3.0 support
 Wireless charging: Qi-compatible pad with up to 20 W total output power
 Maximum output current: up to 3 A
 Available colors: Black, Green
How to use
Charge the power bank via the USB Type-C input using a compatible USB power adapter until the internal indicators show a full charge. To charge a device, connect it with a USB cable to one of the USB Type-A or USB Type-C outputs, observing the correct orientation for connectors. For wireless charging, place a Qi-compatible device centrally on the wireless pad. If the connected device supports Quick Charge 3.0, the power bank will negotiate higher charging voltage and current automatically when using the appropriate USB Type-A cable and compatible device.
Usage recommendations
Use a certified USB cable and a suitable wall adapter when recharging the power bank. Avoid exposing the battery to excessive heat or moisture and store it in a dry place when not in use. For optimal battery longevity, avoid keeping the power bank fully discharged for long periods and recharge it periodically if stored.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.54 kg |
| Battery technology | Lithium Polymer (LiPo) |
| Package weight | 710 g |
| Battery capacity | 20000 mAh |
| Cable length | 1 m |
| Input voltage | 5, 9, 12 |
| Output voltage | 5, 9, 12 |
| LED indicators | Charging, Battery level, Status |
| Product colour | Black, Green |
| Cables included | USB Type-A to USB Type-C |
| Input current | 3, 2, 1.5 |
| Output current | 3 A |
| Package depth | 208 mm |
| Package height | 38 mm |
| Package width | 106 mm |
| Manual | Yes |
| Fast charging | Yes |
| Housing material | ABS |
| Power protection features | Overcharge, Short circuit |
| Charger compatibility | Universal |
| Input interface | Lightning + USB Type-C + Micro-USB |
| Shape | Rectangle |
| Lightning connector | Yes |
| Wireless charging | Yes |
| Charging source | Solar |
| Quantity per pack | 1 pc(s) |
| Micro-USB connector | Yes |
| USB Type-A output ports | 2 |
| Micro-USB connectors quantity | 1 |
| USB Type-C connector | Yes |
| Total output power | 20 W |
| USB Power Delivery (USB PD) | Yes |
| USB Type-A connector | Yes |
| Fast charging technology | Quick Charge 3.0 |
| USB Type-C ports quantity | 1 |
| Wireless charging power | 1.3 W |
| Lightning ports quantity | 1 |
| Port 1 output power | 18 W |
| Port 2 output power | 18 W |
| Port 3 output power | 5 W |
| Port 4 output power | 20 W |
| Port 5 output power | 1.4 W |
| MagSafe compatible | Yes |

## FAQ

### How much does the Portable Battery 4smarts UltiMag 540244 cost, and is it available for purchase?

The price is 48.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 199 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 4smarts products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 4smarts service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Portable Battery 4smarts UltiMag 540244?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/6927434/63752514_large.webp