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header-product 4smarts UltiMag Portable Battery 20000 mAh
48.99 €

4smarts UltiMag Portable Battery 20000 mAh

Portable Battery 4smarts UltiMag 540244 Photo 1
Portable Battery 4smarts UltiMag 540244 Photo 2
Portable Battery 4smarts UltiMag 540244 Photo 1
Portable Battery 4smarts UltiMag 540244 Photo 2
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4smarts UltiMag Portable Battery 20000 mAh

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Short 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.
Available at price 48.99 €: 9 pcs.
Total available for order: 199 pcs.
Warranty: 1 Year
SKU: 6927434
Manufacturer: 4smarts
free shipment

Cheapest with

Latvijas Pasts pakomāts

Pick-up points

Latvijas Pasts pakomāts

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
03.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
08.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.54 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
08.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

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.

All features
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

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
EU1 9 03.07.2026 Best delivery 48.99 €
WH356 190 09.07.2026 62.99 €
48.99 €
Stock: 9
Delivery Date: 03.07.2026 Best delivery
Warehouse: EU1
62.99 €
Stock: 190
Delivery Date: 09.07.2026
Warehouse: WH356

Customer reviews

Customer questions

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.