# UPS Volt SINUS UPS 500 with 40 Ah battery — backup power 300/500W

**URL:** https://aio.lv/en/product--volt-3sr500wa40--11649073
**Data updated:** 2026-06-05 19:01 (EEST)
**Category:** UPS
**Manufacturer:** Volt
**Manufacturer code:** 3SR500WA40
**EAN:** 5904100450114
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 261.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 216.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--volt-3sr500wa40--11649073

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 9.89 EUR |

## Summary description

Volt SINUS UPS 500 is an uninterruptible power supply with a built-in 40 Ah battery, providing rated output power options of 300 W and peak 500 W. Designed to protect electronics and ensure temporary power during outages, it supports safe shutdowns and continuity for home or small-office equipment. Practical for routers, PCs, NAS, and other sensitive devices.

## Long description

The Volt SINUS UPS 500 is a reliable uninterruptible power supply system designed to provide stable backup power for sensitive electronic equipment. Equipped with a high-capacity 40 Ah battery, this device ensures that your connected hardware remains operational during sudden power outages or voltage fluctuations. It delivers a rated output power of 300 W with a peak capacity of 500 W, making it an essential tool for maintaining productivity and protecting data in home and small office environments.
Advantages
This uninterruptible power supply offers a seamless transition to battery power, preventing data loss and hardware damage caused by unexpected shutdowns. The integrated 40 Ah battery provides extended runtime compared to standard models, allowing sufficient time to save work or safely power down connected devices. Its robust design ensures consistent performance, while the pure sine wave output is ideal for sensitive electronics that require stable electrical current to function correctly without interference or noise.
Suitable for
Home office computers and workstations
Network routers and modems
Network Attached Storage (NAS) systems
Small office communication equipment
Sensitive electronic control devices
When it may not be suitable
This device is not intended for high-power appliances such as heaters, air conditioners, or large kitchen equipment that exceed the 500 W peak power limit. It is also not designed for long-term off-grid power supply but rather for short-term backup during utility outages.
Key specifications
Rated power: 300 W
Peak power: 500 W
Battery capacity: 40 Ah
Output waveform: Pure sine wave
Application: Home and small office electronics
How to use
To set up the Volt SINUS UPS 500, place the unit in a well-ventilated area away from direct heat sources. Connect your electronic devices to the output sockets on the rear panel of the UPS. Plug the main power cable into a grounded wall outlet. Once connected, turn on the device using the power switch. The system will automatically monitor the input voltage and switch to battery power instantly if the main power fails.
What to consider before purchase
Verify that the total power consumption of your connected devices does not exceed 300 W for continuous operation.
Ensure the installation location has adequate space for proper airflow to prevent overheating.
Check that your wall outlet is properly grounded to ensure the safety features of the UPS function correctly.
Usage recommendations
Regularly test the battery status by disconnecting the unit from the wall outlet to ensure it provides the expected backup time. Keep the firmware and connections updated, and avoid overloading the unit beyond its rated capacity to prolong the lifespan of the internal battery.

## FAQ

### How much does the Volt SINUS UPS 500 UPS with 40 Ah battery cost, and is it available for purchase?

The price is 261.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 06.07.2026 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 Volt SINUS UPS 500 UPS with 40 Ah battery 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 Volt 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 Volt 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

## Image

https://aio.lv/img/cache/product/11649073/66915012_large.webp