# Button cell battery Varta V377 (SR66) — Silver-Oxide, 6.8 mm diameter, 2.6 mm height

**URL:** https://aio.lv/en/product--varta-377101401--11201832
**Data updated:** 2026-03-07 19:51 (EET)
**Category:** Batteries
**Manufacturer:** Varta
**Manufacturer code:** 377101401
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--varta-377101401--11201832

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Varta V377 (SR66) is a single-use silver-oxide button/coin cell battery with a diameter of 6.8 mm, height 2.6 mm and weight 0.39 g. Designed for low-current devices requiring stable voltage, typical uses include watches, small calculators, medical devices and compact electronics that accept SR66/V377 cells.

## Long description

Varta V377 (SR66) is a single-use silver-oxide button cell with a nominal diameter of 6.8 mm and a height of 2.6 mm. Weighing approximately 0.39 g, this battery is designed to deliver stable voltage for low-current devices that require precise and consistent power. It is compatible with devices accepting SR66 or V377 cells and is part of Varta's range of silver-oxide cells intended for small-format electronics.
Advantages
The silver-oxide chemistry provides a stable output voltage over most of the discharge cycle, making the V377 (SR66) suitable for devices that are sensitive to voltage changes. Its compact coin shape and low weight allow reliable installation in small compartments and watches. As a single-use cell, it offers dependable, maintenance-free operation for long periods in low-drain applications.
Suitable for
 Wristwatches and timepieces that accept SR66 / V377 cells
 Small calculators and pocket electronics
 Medical monitoring devices with low current draw
 Compact sensors and measurement instruments
Key specifications
 Chemistry: silver-oxide (single-use)
 Diameter: 6.8 mm
 Height (thickness): 2.6 mm
 Typical weight: 0.39 g
 Form factor: button / coin cell (SR66 / V377 compatible)
 Designed for low-current, stable-voltage applications
How to use
Before replacing a battery, verify the device documentation for compatibility with SR66 / V377 silver-oxide cells. Ensure the device is switched off or placed in a safe state, then open the battery compartment using the recommended method for your device. Insert the Varta V377 (SR66) with the correct polarity, typically observing the + and − markings on the compartment or old cell. Close the compartment securely and check device operation. Dispose of the used cell according to local battery recycling and disposal regulations.
Usage recommendations
Store unused cells in a cool, dry place away from metal objects and children. Do not attempt to recharge, puncture, or incinerate silver-oxide button cells. For devices requiring long-term, reliable timekeeping or measurement stability, replace the cell promptly when device indicators show low battery.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery type | Single-use battery |
| Battery size(s) | SR66 |
| Battery technology | Silver-Oxide (S) |
| Battery voltage | 1.55 V |
| Number of batteries included | 1 pc(s) |
| Battery capacity | 27 mAh |
| Product colour | Silver |

### Other features

| Feature | Value |
|---|---|
| Type | V 377 |
| Battery form factor | Button/coin |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0004 kg |
| Height | 2.6 mm |
| Diameter | 6.8 mm |

## FAQ

### How much does the Varta V377 button cell (SR66) cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 57 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 16.07.2026 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/11201832/61985663_large.webp