# Single-use battery Panasonic SR521

**URL:** https://aio.lv/en/product--panasonic-sr-521el1b--498945
**Data updated:** 2025-12-28 21:25 (EET)
**Category:** Batteries
**Manufacturer:** Panasonic
**Manufacturer code:** SR-521EL/1B
**EAN:** 5410853035466
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 4.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--panasonic-sr-521el1b--498945

## 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 | 4.99 EUR |

## Summary description

The Panasonic SR521 is a single-use alkaline battery with a voltage of 1.55 V. Its compact size (5.8 mm width, 5.8 mm depth, 2.15 mm height) makes it ideal for various devices. This coin-type battery provides reliable power for watches and small electronics, ensuring long-lasting performance and convenience.

## Long description

The Panasonic SR521 is a single-use alkaline coin battery with a nominal voltage of 1.55 V. Compact and lightweight (5.8 mm × 5.8 mm × 2.15 mm, 0.0002 kg), it is designed to supply reliable power to watches and other small electronic devices requiring a small coin cell.
Advantages
Panasonic's SR521 offers stable voltage output and consistent performance in a compact size suitable for a wide range of timepieces and miniature electronics. The product is available in large blister packaging and includes an extensive cross-reference table on the blister to help identify compatible alternatives.
Suitable for
Wristwatches
Small electronic devices (calculators, key fobs)
Precision instruments requiring coin cells
Key specifications
Battery type: Single-use battery
Battery technology: Alkaline
Nominal voltage: 1.55 V
Dimensions: 5.8 mm × 5.8 mm × 2.15 mm
Weight: 0.0002 kg
Manufacturer MPN: SR-521EL/1B
EAN: 5410853035466
How to use
Insert the SR521 coin battery into the device following the polarity markings: the positive (+) side faces upward in most watches and devices. Ensure contacts are clean and free of debris before installation. Replace the battery when the device shows low-power signs or stops functioning; dispose of the used battery according to local battery recycling regulations.
Usage recommendations
Store unused batteries in a cool, dry place away from direct sunlight and metal objects. Keep batteries out of reach of children. Do not recharge, short-circuit, disassemble or expose to fire.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery type | Single-use battery |
| Battery technology | Alkaline |
| Battery voltage | 1.55 V |
| Battery capacity | 17 mAh |

### Other features

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0002 kg |
| Height | 2.15 mm |
| Width | 5.8 mm |
| Depth | 5.8 mm |

## FAQ

### How much does the Single-use battery Panasonic SR521 cost, and is it available for purchase?

The price is 4.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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. 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 technology, 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/498945/64048762_large.webp