High Quality SEIKO 5J21 Battery For Seiko Kinetic Watch Capacitor 5J21 5J22 5J32 5S21 7D46 7D48 7D56

Do you want to buy a cheap SEIKO 5J21 Compatible battery? We offer you a cheap SEIKO 5J21 Compatible battery - an incredibly high quality Compatible battery! All SEIKO 5J21 are brand new,1 year Warranty, 100% Guarantee Quality and Fully Test!

✔ Battery for 5J21 Ships to Singapore

Product Overview

This battery is suitable as a replacement battery for Seiko Kinetic Watch Capacitor 5J21 5J22 5J32 5S21 7D46 7D48 7D56 battery and SEIKO 5J21 model.

High capacity SEIKO 5J21 battery for longer standby time.

The battery is professionally tested to ensure the best lifespan.

1 year warranty, 30 days money back, 100% brand new!

Battery capacity (mAh/A/W) may be different; the more mAh/A/W it displays, the higher its autonomy.

Safety certified CE / FCC / RoHS.

Key Features

• High‑capacity design with for extended device runtime.
• Stable output ensures consistent performance during daily use.
• Built with high‑quality lithium‑ion cells for improved durability and long cycle life.
• Advanced protection system including overcharge, over‑discharge, overheat, and short‑circuit safeguards.
• Optimized for reliable performance in warm and humid environments.
• Lightweight and compact design for easy installation and device compatibility.

Technical Specifications

Model	5J21
Battery Condition	Brand New Replacement Battery
Item Code	ECN12764_Oth
Category	Smart Watch Batteries
Brand	SEIKO
Capacity
Voltage
Type	Coin Cell
Color	White
Applies to	Seiko Kinetic Watch Capacitor 5J21 5J22 5J32 5S21 7D46 7D48 7D56
Certification	Passed CE, UL, ROHS, ISO 9001/9002 and GS certification
Service	Buy now, we promise a one-year warranty and 30-day returns

Compatible Models

Replacement Part Numbers:

• 5J21
• 5J22
• 5J23
• 5J32
• 7D46
• 7D48
• 7D56

Compatible Models：

MT920 3023-24X battery for Seiko Kinetic Watch Capacitor 5J21 5J22 5J32 5S21 7D46 7D48 7D56

For Seiko Capacitor 3023 24X
Kinetic power
TC920(S) Type
In FACTORY sealed parts packaging
BRAND NEW and FRESH
For Seiko / Pulsar Caliber (Movement) Numbers:
5J21 5J22 5J23 5J32 7D46 7D48 7D56

* Please make sure that the replacement battery you are buying is suitable for your device brand and model.

Battery Care & Maintenance

• Store the battery in a cool, dry environment to maintain long‑term performance.
• Avoid exposing the battery to excessive heat or direct sunlight, especially in warm and humid climates.
• Use compatible SEIKO chargers or certified charging accessories to ensure safe and efficient charging.
• Avoid frequent full discharges; partial charge cycles help extend overall battery lifespan.
• If the battery will not be used for an extended period, keep it at around 40–60% charge before storage.
• Clean the battery contacts periodically with a dry cloth to maintain stable power delivery.
• Do not puncture, crush, or expose the battery to water or high humidity.

Frequently Asked Questions