# Tower UPS EVER DUO 850 AVR USB, Line-Interactive 0.85 kVA (550 W), 6×IEC C13, 12 V 5 Ah, AVR, USB, Hot-swap

**URL:** https://aio.lv/en/product--ever-tdavrto-000k8500--641456
**Data updated:** 2026-01-21 10:50 (EET)
**Category:** UPS
**Manufacturer:** EVER
**Manufacturer code:** T/DAVRTO-000K85/00
**EAN:** 5907683605131
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 103.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 85.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ever-tdavrto-000k8500--641456

## 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 | 6.81 EUR |

## Summary description

EVER DUO 850 AVR USB is a tower, line-interactive UPS with 0.85 kVA (550 W) output power and Automatic Voltage Regulation. It provides six IEC 320 C13 outlets (10 A), USB and HID support, hot-swap battery bays for two 12 V 5 Ah batteries, automatic battery test and cold-start. Operates 0–40 °C, IP20, 10 m cable and sine waveform output.

## Long description

The Ever DUO 850 AVR USB is a line-interactive UPS designed to protect home and office equipment from mains disturbances. With 0.85 kVA (550 W) output capacity, six AC outlets and a 5 Ah, 12 V battery, it safeguards computers, monitors, telecom devices such as switches and routers, and fiscal equipment. The unit includes an HID USB communication interface for plug-and-play connectivity and is compatible with PowerSoft software for extended monitoring and configuration.
Advantages
AVR (automatic voltage regulation) corrects under- and over-voltage without using battery power, extending battery life and maintaining stable output. HID USB support enables operation without installing drivers, while the bundled PowerSoft software provides status information on operating mode, load, battery charge and estimated runtime. The UPS also features cold-start capability to power the unit from its battery when mains are absent and an automatic restart function that powers connected devices when mains power returns after full battery discharge.
Suitable for
 Desktop computers and workstations
 Monitors and point-of-sale / fiscal devices
 Routers, switches and small telecom equipment
 Home office and small office setups requiring short runtime and surge protection
Key specifications
 Model: UPS Ever DUO 850 AVR USB (MPN: T/DAVRTO-000K85/00, EAN: 5907683605131)
 Topology: Line-interactive (AVR)
 Output capacity: 0.85 kVA / 550 W
 Battery: 12 V, 5 Ah
 AC outlets: 6
 Form factor: Tower, colour: Black
 Weight: 6.9 kg
 Cable length: 10 m
How to use
Place the UPS on a stable, ventilated surface and connect the Ever DUO 850 AVR USB to the mains. Plug required equipment into the six AC outlets, prioritizing critical devices. Connect the UPS to a computer via the HID USB port to enable automatic detection; install PowerSoft only if advanced monitoring or configuration is needed. The AVR function operates automatically to correct voltage fluctuations; the battery provides backup power during outages. Use the cold-start feature if you need to start the UPS on battery when mains power is unavailable.
Usage recommendations
For reliable operation, install the UPS in a dry, dust-free environment with ambient temperature within the manufacturer's recommended range, regularly test the battery and replace it according to usage and battery health indicators shown in PowerSoft. Do not overload the UPS — keep total connected load within the 550 W rating.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| AC outlets quantity | 6 AC outlet(s) |

### Battery

| Feature | Value |
|---|---|
| Number of batteries supported | 2 |
| Hot-swap battery | Yes |
| Battery voltage | 12 V |
| Battery capacity | 5 Ah |
| Cold start | Yes |
| Automatic battery test | Yes |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Form factor | Tower |
| Cable length | 10 m |
| LED indicators | Y |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 6.9 kg |
| Height | 189 mm |
| Width | 100 mm |
| Depth | 325 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Features

| Feature | Value |
|---|---|
| Audible alarm(s) | Yes |
| Output power capacity | 0.85 kVA |
| Input frequency | 50/60 |
| Maximum current | 10 A |
| Output power | 550 W |
| Input operation voltage (max) | 290 V |
| Input operation voltage (min) | 162 V |
| Output operation voltage (min) | 191 V |
| Output operation voltage (max) | 253 V |
| Waveform | Sine |
| Automatic Voltage Regulation (AVR) | Yes |
| UPS topology | Line-Interactive |
| Audible alarm modes | Overload alarm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 7600 g |
| Package depth | 362 mm |
| Package height | 256 mm |
| Package width | 141 mm |

## FAQ

### How much does the UPS EVER DUO 850 AVR USB — 0.85 kVA Tower UPS cost, and is it available for purchase?

The price is 103.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 64 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, Installment. All transactions are 100% secure and encrypted.

### Can UPS EVER DUO 850 AVR USB — 0.85 kVA Tower UPS be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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, output power capacity, 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 850 AVR USB — 0.85 kVA Tower UPS?

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

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