# Single-use battery Panasonic SR-721

**URL:** https://aio.lv/en/product--panasonic-sr-721el1b--498949
**Data updated:** 2026-01-13 15:24 (EET)
**Category:** Batteries
**Manufacturer:** Panasonic
**Manufacturer code:** SR-721EL/1B
**EAN:** 5410853035503
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--panasonic-sr-721el1b--498949

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Panasonic SR-721 is a single-use coin battery with a voltage of 1.55 V and a capacity of 25 mAh. Measuring 7.9 mm in width and depth, and 2.1 mm in height, it is designed for reliable performance in various devices. Ideal for watches, calculators, and other small electronics, this battery ensures long-lasting power and dependable operation.

## Long description

The Panasonic SR-721 is a single-use coin battery with a nominal voltage of 1.55 V and a rated capacity of 25 mAh. With compact dimensions of approximately 7.9 mm in diameter and 2.1 mm in height and a weight of about 0.0004 kg, this cell is intended for small electronic devices that require a stable low-current power source. The battery chemistry and construction provide consistent output suitable for timekeeping and low-drain applications.
Advantages
The SR-721 offers a stable 1.55 V output and compact size that fits many standard coin-cell compartments. Its single-use design delivers reliable shelf life and predictable performance until end of service. The cell’s small form factor and low weight make it suitable for lightweight devices where space and mass are limited.
Подходит для
Wrist watches and timepieces
Calculators and small office devices
Key fobs and small remote controls
Medical devices with low power requirements such as hearing accessories and glucose meters (confirm compatibility)
Key specifications
Battery type: single-use coin cell
Nominal voltage: 1.55 V
Rated capacity: 25 mAh
Diameter: 7.9 mm (approx.)
Height/thickness: 2.1 mm (approx.)
Weight: ~0.0004 kg
How to use
Before installation, ensure the device is powered off and that the battery compartment is clean and free of debris. Match polarity markings and seat the coin cell in the holder so that the positive side faces the indicated direction. After installation, verify device operation and close the battery compartment securely. Replace with the same battery type and voltage when performance degrades.
Usage recommendations
Store Panasonic SR-721 cells in a cool, dry place away from direct sunlight and metal objects. Dispose of used batteries according to local regulations and avoid short-circuiting, disassembling, or exposing the cell to fire. For critical medical or safety devices, confirm manufacturer compatibility and replacement intervals before use.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery type | Single-use battery |
| Battery voltage | 1.55 V |
| Battery capacity | 25 mAh |

### Other features

| Feature | Value |
|---|---|
| Type | Coin |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0004 kg |
| Height | 2.1 mm |
| Width | 7.9 mm |
| Depth | 7.9 mm |

## FAQ

### How much does the Single-use battery Panasonic SR-721 cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 45 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 03.07.2026 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 Panasonic 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 Panasonic 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 voltage, weight, 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/498949/64048768_large.webp