# Uninterruptible Power Supply EVER DUO 350 AVR, line-interactive tower UPS, 0.35 kVA (245 W), 2x C13 outlets, 12 V 5 Ah VRLA battery

**URL:** https://aio.lv/en/product--ever-tdavrto-000k3500--641454
**Data updated:** 2026-01-21 10:50 (EET)
**Category:** UPS
**Manufacturer:** EVER
**Manufacturer code:** T/DAVRTO-000K35/00
**EAN:** 5907683605117
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 53.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 44.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ever-tdavrto-000k3500--641454

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Line-interactive uninterruptible power supply EVER DUO 350 AVR provides 0.35 kVA (245 W) backup and surge protection for single-phase equipment. It features AVR for stable output voltage (191–253 V), sine waveform output at 50/60 Hz, two C13 AC outlets, short-circuit and overload protection, audible alarms and cold-start capability. Uses one 12 V 5 Ah sealed lead-acid (VRLA) battery; compact black tower design with IP20 protection.

## Long description

The Ever DUO 350 AVR is a compact Line-Interactive uninterruptible power supply (UPS) designed for home and small office use. With 0.35 kVA (245 W) output and two C13 AC outlets, it provides backup power and protection against voltage drops, surges and outages. The unit uses a 12 V, 5 Ah sealed lead-acid (VRLA) battery and features automatic restart and cold-start capabilities.
Advantages
The DUO AVR series includes automatic voltage regulation that corrects low and high input mains voltage without using battery power, helping to extend battery life. Built-in automatic restart restores operation after battery discharge when mains returns, and the cold-start function allows the UPS to be started from battery without mains. Its compact tower design and IP20 rating make it suitable for indoor placement in home or office environments.
Suitable for
 Desktop computers and workstations
 Monitors and point-of-sale/fiscal devices
 Telecom equipment such as routers and switches
 Peripheral devices that require short power backup and surge protection
Key specifications
 Model: Ever DUO 350 AVR (T/DAVRTO-000K35/00)
 Output power capacity: 0.35 kVA (245 W)
 Battery: Sealed Lead Acid (VRLA), 12 V, 5 Ah
 AC outlets: 2 × C13
 Dimensions (W×D×H): 84 × 286 × 158 mm
 Weight: 3.8 kg
 Colour: Black
 Indoor use rating: IP20
How to use
Place the UPS on a stable, flat surface in a well-ventilated indoor area. Connect the UPS to the mains and allow the internal battery to charge before first use according to the manufacturer's charging indication. Plug your computer, monitor or other small equipment into the C13 outlets. In the event of mains voltage fluctuations the UPS will provide regulated output and switch to battery power during outages; use the cold-start feature to power the UPS from battery only when mains is not available.
Usage recommendations
For reliable operation, keep the UPS indoors, avoid exposure to moisture and high temperatures, and periodically test the battery and load to ensure sufficient backup time for your connected devices.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| AC outlets quantity | 2 AC outlet(s) |
| AC outlet types | C13 coupler |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Sealed Lead Acid (VRLA) |
| Number of batteries supported | 1 |
| Battery voltage | 12 V |
| Battery capacity | 5 Ah |
| Cold start | Yes |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Form factor | Tower |
| International Protection (IP) code | IP20 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 3.8 kg |
| Height | 158 mm |
| Width | 84 mm |
| Depth | 286 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 80 |
| Storage temperature (T-T) | 0 - 40 |
| Operating temperature (T-T) | 0 - 40 |
| Storage relative humidity (H-H) | 20 - 95 |

### Features

| Feature | Value |
|---|---|
| Audible alarm(s) | Yes |
| Output power capacity | 0.35 kVA |
| Input frequency | 50/60 |
| Output power | 245 W |
| Power protection features | Short circuit, Overload |
| Surge protection | Yes |
| Input operation voltage (max) | 290 V |
| Input operation voltage (min) | 162 V |
| Output operation voltage (min) | 191 V |
| Output operation voltage (max) | 253 V |
| Output frequency | 50/60 |
| Number of input phases | 1 |
| Number of output phases | 1 |
| Waveform | Sine |
| Automatic Voltage Regulation (AVR) | Yes |
| UPS topology | Line-Interactive |
| Audible alarm modes | Low battery alarm, Overload alarm, Fault |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 4100 g |
| Package depth | 286 mm |
| Package height | 225 mm |
| Package width | 122 mm |

## FAQ

### How much does the UPS EVER DUO 350 AVR — 0.35 kVA, 245 W cost, and is it available for purchase?

The price is 53.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 09.07.2026 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 EVER 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 EVER 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: ac outlets quantity, weight, output power capacity, output power, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for UPS EVER DUO 350 AVR — 0.35 kVA, 245 W?

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/641454/65769338_large.webp