Varta SR66 Button Non-Rechargeable Battery, 1.55 V, 6.8 mm Diameter

View all Button Batteries

Subtotal (1 unit)*

£6.38

(exc. VAT)

£7.66

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 190 unit(s) shipping from 09 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£6.38

*price indicative

RS Stock No.:
765-721
Mfr. Part No.:
377101111
Brand:
Varta
Find similar products by selecting one or more attributes.
Select all

Brand

Varta

Battery Size

SR66

Product Type

Button Non-Rechargeable Battery

Chemistry

NaOH Electrolyte, Silver Oxide, Zinc

Nominal Voltage

1.55V

Battery Capacity

21mAh

Diameter

6.8mm

Number of Batteries

1

Height

2.6mm

Weight

0.34g

Series

377

IEC Code

SR66

RoHS Status: Exempt

COO (Country of Origin):
CN
The Varta Silver oxide battery is designed specifically for use in watches. This battery offers a nominal voltage of 1.55 V and a typical capacity of 21 mAh, ensuring reliable power delivery for your timekeeping devices. Engineered without mercury, it provides a safer choice for consumers while maintaining exceptional energy efficiency. The Compact size, with a diameter of 6.6 mm to 6.8 mm and a height of 2.4 mm to 2.6 mm, makes it Ideal for various watch models. With maximum operational temperatures ranging from -10°C to 60°C, The Varta 377 is built to perform under diverse conditions, delivering both quality and convenience for everyday use.

Mercury-free design enhances safety for end-users

Delivers a reliable nominal voltage of 1.55 V for optimal performance

Typical capacity of 21 mAh supports extended usage

Compact dimensions fit seamlessly into various watch designs

Temperature range of -10°C to 60°C ensures functionality in diverse environments

Long-lasting power with a continuous load of 47 kΩ for up to 680 hours

Excellent energy density with 28 mWh, enhancing efficiency

Suitable for specific applications, such as watches, ensuring precise operation

Related links