Primary Silver Button 397 - Battery VARTA - Free user manual and instructions

Product Type	Button Cell Battery
Brand	VARTA
Model	Primary Silver Button 397
IEC Designation	SR59
Technology	Silver Oxide
Electrolyte	NaOH
Nominal Voltage	1.55 V
Typical Capacity	23 mAh (at 20 kΩ, 20°C, down to 1.2 V)
Weight	Approx. 0.5 g
Volume	0.11 ccm
Diameter	7.55 - 7.9 mm
Height	2.3 - 2.6 mm
Operating Temperature Range	-10°C to 65°C
Storage Temperature Range	-10°C to 65°C
Main Applications	Watches, cameras, electronic devices
Discharge Type	Continuous
Typical Load	20 kΩ
End Voltage	1.2 V
Typical Discharge Time	320 hours
Current	78 μA
Energy	33 mWh
Coding	Date of Manufacturing (Month/Year)
Safety	Keep away from children, do not recharge, dispose properly
Storage	Store in cool, dry place

Frequently Asked Questions - Primary Silver Button 397 VARTA

What is the voltage of the Varta 397 battery?

The nominal voltage is 1.55 V.

How long does the Varta 397 battery last?

Under typical load (20 kΩ), it lasts approximately 320 hours continuously.

Can I recharge the Varta 397 battery?

No, this is a primary (non-rechargeable) silver oxide battery. Attempting to recharge may cause leakage or rupture.

What devices use the Varta 397 button cell?

It is commonly used in watches, calculators, cameras, and other small electronic devices.

How should I store the Varta 397 battery?

Store in a cool, dry place at temperatures between -10°C and 65°C. Avoid direct sunlight and moisture.

How do I dispose of the Varta 397 battery?

Dispose of according to local regulations for button cell batteries. Do not throw in household trash; recycle where possible.

Is the Varta 397 battery safe?

Yes, when used as directed. However, keep away from children to prevent swallowing. If swallowed, seek medical help immediately.

What are the dimensions of the Varta 397 battery?

Diameter: 7.55 - 7.9 mm, Height: 2.3 - 2.6 mm.

How can I tell if the battery is dead?

If the device stops working or shows weak performance, measure voltage with a multimeter. A reading below 1.2 V indicates it should be replaced.

Can the Varta 397 battery leak?

Like all batteries, leakage can occur if damaged or expired. Remove from devices when not in use for long periods to prevent damage.

USER MANUAL Primary Silver Button 397 VARTA

Designation IEC SR 59

System ...... Silver oxide / Zinc /

NaOH - Electrolyte

Nominal Voltage 1,55 V

Typical Capacity C 23 mAh

Load 20 kOhm, at 20°C down to 1.2 V

Weight (approx.) 0,5 g

Volume 0,11 ccm

Coding...... Date of Manufacturing

Month/Year

Temperature Ranges

Storage min max.

Discharge -10°C 65°C

-10°C 65°C

Dimensions

Diameter ( ) min max.

Height (A/B) 7,55 7,9

2,3 2,6

Segment ......

Watch

Main Applications ....

Watch

Photo

Electronic

Typical Capacities (at 20°C)

Discharge Type	Load	End Voltage:	1.2 V
Continuous	20000 Ω	Time:	320 h
24h/d,7d/w		Capacity [mAh]:	23
Current [μA]:	78	Energy [mWh]:	33