---
product_id: 389257991
title: "Maxell BATTERY SR621SW SR COIN [364] BLISTER*1 MXBSR621"
brand: "maxell"
price: "¥4080"
currency: JPY
in_stock: true
category: "Maxell"
url: https://www.desertcart.jp/products/389257991-maxell-battery-sr621sw-sr-coin-364-blister-1-mxbsr621
store_origin: JP
region: Japan
---

# 23mAh High Capacity 1.55V Silver-Oxide Power Ultra-Compact 7x7x2mm Maxell BATTERY SR621SW SR COIN [364] BLISTER*1 MXBSR621

**Brand:** maxell
**Price:** ¥4080
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your precision life with Maxell’s micro energy marvel!

## Quick Answers

- **What is this?** Maxell BATTERY SR621SW SR COIN [364] BLISTER*1 MXBSR621 by maxell
- **How much does it cost?** ¥4080 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/389257991-maxell-battery-sr621sw-sr-coin-364-blister-1-mxbsr621)

## Best For

- maxell enthusiasts

## Why This Product

- Trusted maxell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Thousands:** Join over 1,200 satisfied users who rate Maxell 4.6 stars for dependable energy.
- • **Optimal 1.55V Voltage:** Delivers stable voltage ensuring your devices perform at their peak.
- • **Lightweight & Discreet:** At just 2 grams, it’s the invisible powerhouse your gadgets deserve.
- • **Precision Miniature Size:** Seamlessly fits into watches and small electronics without bulk or compromise.
- • **Reliable Silver-Oxide Chemistry:** Experience consistent, long-lasting power with premium zinc silver oxide technology.

## Overview

Maxell SR621SW is a single-use, silver-oxide coin battery delivering 1.55 volts and 23mAh capacity in an ultra-compact 7x7x2mm form factor. Designed for watches and small electronics, it combines lightweight design with reliable, long-lasting power, backed by a strong 4.6-star user rating.

## Description

MAXELL - SILVER-OXYDE BATTERY 621 - SR621SW Technology: Silver Packaging: blister 1pcsMAXELL BATTERY SR621SW SR COIN [364] BLISTER1

## Features

- Chemical System Zinc Silver Oxide
- 1.55 V
- Nominal Capacity (mAh) 23 -18

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00SYML68G |
| Amperage | 1.55 Amps |
| Antenna Location | Watch |
| Battery Cell Type | Alkaline |
| Battery Weight | 2 Grams |
| Brand | Maxell |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,200) |
| Global Trade Identification Number | 04902580132224 |
| Item Dimensions | 7 x 7 x 2 millimeters |
| Item Weight | 0.02 Kilograms |
| Manufacturer | Maxell |
| Model Name | SR0621SW |
| Model Number | MXBSR621 |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Reusability | Single Use |
| Unit Count | 1 Count |
| Voltage | 1.55 Volts |

## Product Details

- **Battery cell composition:** Alkaline
- **Brand:** Maxell
- **Number of batteries:** 1 LR44 batteries required. (included)
- **Recommended uses for product:** Watch
- **Unit count:** 1 Count

## Images

![Maxell BATTERY SR621SW SR COIN [364] BLISTER*1 MXBSR621 - Image 1](https://m.media-amazon.com/images/I/6110ZbELUaL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/389257991-maxell-battery-sr621sw-sr-coin-364-blister-1-mxbsr621](https://www.desertcart.jp/products/389257991-maxell-battery-sr621sw-sr-coin-364-blister-1-mxbsr621)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-27*