# Single-use battery Varta V399

**URL:** https://aio.lv/en/product--varta-00399-101-111--1400492
**Data updated:** 2025-12-29 07:36 (EET)
**Category:** Batteries
**Manufacturer:** Varta
**Manufacturer code:** 00399 101 111
**EAN:** 4008496245772
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--varta-00399-101-111--1400492

## 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

The Varta V399 is a silver-oxide single-use battery designed for precision devices. With a height of 2.7 mm and a diameter of 9.5 mm, it weighs only 0.75 g. This button/coin battery offers reliable performance and long-lasting power, making it ideal for watches, calculators, and other small electronics.

## Long description

The Varta V399 is a single-use silver-oxide button cell designed for precision devices that require stable low-voltage power. Measuring 9.5 mm in diameter and 2.7 mm in height and weighing approximately 0.75 g, this SR57-format battery delivers a nominal voltage of 1.55 V and is intended for applications where reliable, long-lasting power and minimal self-discharge are important.
Advantages
Varta V399 cells feature high resistance to leakage due to an advanced sealing technology and are manufactured on fully automated production lines in Germany. They offer constant voltage output, low self-discharge, long running time and consistent quality thanks to precise production and the use of high-quality raw materials. The mercury-free silver-oxide chemistry provides dependable performance for small electronic devices.
Suitable for
Watches and timepieces
Calculators
Small medical devices and measuring instruments
Toys, key fobs and remote controls
Key specifications
Type: Single-use battery (primary cell)
Chemistry: Silver-Oxide (S), mercury-free
Nominal voltage: 1.55 V
Size/format: SR57 (9.5 mm diameter, 2.7 mm height)
Weight: approx. 0.75 g (0.0008 kg)
Packaging: 1 pc(s)
Manufacturer MPN: 00399 101 111
EAN: 4008496245772
How to use
Install the Varta V399 in the device following the polarity markings (+/–) indicated on the battery compartment. Ensure contacts are clean and dry before insertion. Use the battery in devices designed for SR57/SR57-type silver-oxide cells and replace with the same type when depleted. Dispose of used batteries according to local regulations for single-use batteries and recycling schemes.
Usage recommendations
Store unused batteries in a cool, dry place away from direct sunlight and heat sources. Do not attempt to recharge, disassemble or short-circuit the cell. Keep out of reach of children; small button cells can cause serious injury if swallowed.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery type | Single-use battery |
| Battery size(s) | SR57 |
| Battery technology | Silver-Oxide (S) |
| Battery voltage | 1.55 V |
| Number of batteries included | 1 pc(s) |
| Battery capacity | 42 mAh |
| Product colour | Silver |
| Heavy metals free | Hg (mercury) |

### Other features

| Feature | Value |
|---|---|
| Battery form factor | Button/coin |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0008 kg |
| Height | 2.7 mm |
| Diameter | 9.5 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -10 - 65 |
| Operating temperature (T-T) | -10 - 65 |

## FAQ

### How much does the Single-use battery Varta V399 cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 55 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 Varta 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 Varta 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: battery type, battery technology, battery voltage, number of batteries included, weight, battery size(s), 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.

## Image

https://aio.lv/img/cache/product/1400492/64054730_large.webp