# Button cell battery Maxell BAT397.MX1 SR726SW 1.55V silver oxide

**URL:** https://aio.lv/en/product--button-cell-battery-maxell-bat397mx1-sr726sw-155v-silver-oxide--3488509
**Data updated:** 2026-02-12 09:53 (EET)
**Category:** Batteries
**Manufacturer code:** BAT397.MX1
**EAN:** 3100000528157
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.55 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 2.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--button-cell-battery-maxell-bat397mx1-sr726sw-155v-silver-oxide--3488509

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.89 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Maxell BAT397.MX1 (SR726SW) is a 1.55V silver oxide button cell designed for small electronic devices. Suitable for watches, calculators, medical devices and other precision instruments that require stable voltage and compact size. Provides reliable power for low-drain and intermittent-use applications and is supplied as a single replacement cell.

## Long description

Maxell BAT397.MX1 SR726SW 1.55V silver oxide button cell is a compact primary battery designed for small electronic devices that require a stable voltage and long shelf life. Its silver oxide chemistry provides consistent output, making it suitable for precision instruments where voltage stability is important. This single cell is intended as a replacement battery for devices with low to moderate power consumption and intermittent use.
Advantages
The silver oxide chemistry delivers a steady 1.55V nominal voltage and a flat discharge curve, which helps maintain consistent device performance until the end of service life. Its small cylindrical button form factor ensures compatibility with a wide range of watches, calculators and medical devices. The battery is single-use and designed for reliable operation in low-drain and intermittent applications, offering predictable behaviour in precision instruments.
Suitable for
 Wristwatches and timepieces
 Calculator and small office electronics
 Medical devices such as glucose meters and thermometers
 Remote controls and keyless entry fobs with low power draw
 Small sensors and measurement tools
Key specifications
 Chemistry: Silver oxide
 Nominal voltage: 1.55 V
 Cell type: Button/coin cell
 Intended use: Primary (non-rechargeable) battery for low-drain devices
 Typical discharge behaviour: Flat voltage profile for stable output
 Size category: Small button cell suitable for compact housings
How to use
Install the cell with correct polarity, matching the positive and negative markings in the device battery compartment. Ensure the contact surfaces are clean and free of corrosion before insertion. Replace with a fresh cell when device performance declines or when the manufacturer’s low-battery indicator appears. Do not attempt to recharge the cell; it is intended for single-use applications. Dispose of used batteries according to local regulations for battery recycling or hazardous waste.
Usage recommendations
Store unused cells in a cool, dry place away from direct sunlight and heat sources. Avoid mixing new and used batteries or combining different chemistry types in the same device. For medical or precision devices, replace the cell with the same type to preserve measurement accuracy and device reliability.

## FAQ

### How much does the Button cell battery Maxell BAT397.MX1 SR726SW cost, and is it available for purchase?

The price is 2.55 € (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 07.07.2026 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.

### 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/3488509/6548917_large.webp