30% off all items on the site, 30 days money back, 1 year warranty

What Are You Looking For?

Your Cart

Your Shopping Cart is Empty!

CITIZEN 7821 Battery Replacement

Power up your device with the Citizen 7821 battery — engineered for compatibility, performance, and long-lasting reliability. Batteryshop.org.uk offers a wide range of trusted battery models to keep your gear running smoothly.

Premium Performance Battery 7821 Compatible with CITIZEN 7821

Click image to open expanded view

Price: £28.99 £41.41
  • Model: 7821
  • SKU: ECN12648_4_Oth
  • Availability: In Stock
  • Capacity:
  • Voltage:
  • Type: Rechargeable
  • Color: White
Quantity:
- +
Guarantee safe & Secure checkout
  • Free shipping apply to all
    orders over £ 9.9

  • Paypal guarantees 100%
    payment security

  • 30 days returns if you change
    your mind

Related Products

APP00302
-30%
MOVADO

APP00302 for Movado Connect 2.0/40

£19.99 £28.56
Availability : In Stock
  • Capacity: 300mAh/1.14Wh
  • Voltage: 3.8V
AA1G114OS
-30%
TICWATCH

AA1G114OS for Ticwatch 2 Generation E S Smart Watch

£33.50 £47.86
Availability : In Stock
  • Capacity: 1.14Wh
  • Voltage: 3.8V
CTL1616 CTL1616F BG800-1V
-30%
  • Capacity: 18mAh
  • Voltage: 2.3V
SNN5971A
-30%
MOTOROLA

SNN5971A for Moto 360 2nd-Gen 2015 Smart Watch FW3S

£50.00 £71.43
Availability : In Stock
  • Capacity: 300mAh
  • Voltage: 3.8V/4.4V
BL-S4
-30%
LG

BL-S4 for LG BL-S4 Watch Battery

£38.49 £54.99
Availability : In Stock
  • Capacity: 700mAh/2.7WH
  • Voltage: 3.8V
AHB322028 5103017-0502
-30%
TOMTOM

AHB322028 5103017-0502 for TomTom Runner Cardio

£21.49 £30.70
Availability : In Stock
  • Capacity: 190mAh/0.7Wh
  • Voltage: 3.7V
A1848
-30%
APPLE

A1848 for Apple SmartWatch Series 3 GPS + LTE 38mm

£20.50 £29.29
Availability : In Stock
  • Capacity: 279mAh/1.07Wh
  • Voltage: 3.82V
APP00221
-30%
APACK

APP00221 for APACK APP00221?SmartWatch

£18.99 £27.13
Availability : In Stock
  • Capacity: 300mAh
  • Voltage: 3.8V
PL412120H
-30%
AMAZFIT

PL412120H for Amazfit GTR 42MM A1909 A1910

£17.99 £25.70
Availability : In Stock
  • Capacity: 190mAh/0.73Wh
  • Voltage: 3.85V
A2277
-30%
APPLE

A2277 for APPLE IP IWatch Series 5 S5 40mm

£22.38 £31.97
Availability : In Stock
  • Capacity: 245mAh/0.944WH
  • Voltage: 3.85V
LI3904T44P6H282455
-30%
NUBIA

LI3904T44P6H282455 for NUBIA SW1003 watches

£20.88 £29.83
Availability : In Stock
  • Capacity: 425mAh/1.63WH
  • Voltage: 3.85V
PL412631 A2165 A2166
-30%
AMAZFIT

PL412631 A2165 A2166 for Amazfit GTR 4 watch

£18.99 £27.13
Availability : In Stock
  • Capacity: 475mAh/1.84Wh
  • Voltage: 3.87V

Fast Delivery

Shipping to Most Countries

safe payment

Paypal Secure Payment

Online Discount

30% Off All Batteries

Help Center

Contact Our Customer Service

Curated items

From Handpicked Manufacturers