Energizer SR66 Button Battery, 1.55 V, 6.8 mm Diameter

RS Stock No.:: 683-365
Mfr. Part No.:: 7638900253023
Manufacturer:: Energizer

Energizer SR66 Button Battery, 1.55 V, 6.8 mm Diameter

Subtotal (10 units, in packs of 10)*

€10.54

(exc. VAT)

€12.96

(inc. VAT)

In Stock

23 unit(s) ready to ship from another location

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Pack(s)	Per Pack	Per unit*
1 +	€10.54	€1.054

*price indicative

RS Stock No.:: 683-365
Mfr. Part No.:: 7638900253023
Manufacturer:: Energizer

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Energizer
	Product Type	Button Battery
	Battery Size	SR66
	Chemistry	Silver Oxide
	Nominal Voltage	1.55V
	Battery Capacity	24mAh
	Diameter	6.8mm
	NEDA Code	1176SO
	Termination Type	Flat Contact
	Standards/Approvals	No
	Height	2.6mm
	Weight	420mg
	IEC Code	SR66
	Series	377/376

	Select all
	Brand Energizer
	Product Type Button Battery
	Battery Size SR66
	Chemistry Silver Oxide
	Nominal Voltage 1.55V
	Battery Capacity 24mAh
	Diameter 6.8mm
	NEDA Code 1176SO
	Termination Type Flat Contact
	Standards/Approvals No
	Height 2.6mm
	Weight 420mg
	IEC Code SR66
	Series 377/376

Datasheet - 377

RoHS Status: Exempt

COO (Country of Origin):: JP

Energizer 377/376 Series Button Battery, 1.55V Nominal Voltage, 24mAh Capacity - 7638900253023

This button battery provides a stable 1.55 V supply for low continuous drain devices and intermittent high-pulse demands. It uses a silver oxide chemical system and is designed for applications requiring compact, lightweight power where consistent voltage and predictable discharge behaviour are needed at room temperature.

Features and Benefits:

• 24 mAh capacity delivers extended service at low continuous drain
• 15-30 Ω impedance supports stable voltage under Pulse loads
• Flat contact termination enables reliable surface connection
• 0.42 g mass reduces added weight in portable assemblies
• 1.2 V cut-off under load prevents deep discharge damage

Applications

• Suitable for precision timekeeping devices in Compact form factors
• Ideal for small medical instruments requiring stable voltage
• Used with low-drain sensors and measurement tags
• Can be used for portable electronic controls needing Pulse bursts

What typical discharge test defines the capacity value?

Capacity is measured under a continuous 47 kΩ drain at 21 °C to a 1.2 V cut-off.

How does temperature affect service performance?

Service changes with temperature, higher temperatures increase delivered service percentage compared with lower temperatures.

What electrical behaviour should be expected under Pulse demand?

The cell maintains near-nominal voltage during high-current pulses due to low internal impedance.

How is end-of-life defined for operational cut-off?

End-of-life is reached when cell voltage falls to 1.2 V under the specified load conditions.