How to Interpret the CR2354 Panasonic Battery Datasheet?

The Panasonic CR2354 is a 3V lithium coin cell battery with a 560mAh capacity, designed for long-term use in devices like car key fobs, medical devices, and IoT sensors. Its key features include a 10-year shelf life, a temperature range of -30°C to 85°C, and compliance with IEC 60086-3 safety standards. Ideal for low-power, high-reliability applications.

How to Test Continuity with a Multimeter

The CR2354 datasheet provides voltage curves, discharge characteristics, and storage guidelines. Critical parameters include nominal voltage (3V), pulse current capacity (15mA), and maximum continuous current (5mA). Always cross-reference the “Storage Conditions” section to avoid capacity loss due to improper humidity or temperature exposure.

Engineers should pay particular attention to the discharge rate tables showing capacity retention under various loads. For instance, at 15kΩ load (0.2mA), the battery delivers 100% of its rated capacity, while 1kΩ load (3mA) reduces effective capacity to 85%. The datasheet’s Figure 3 illustrates the nonlinear relationship between current draw and service life – a 5mA continuous drain reduces total energy output by 22% compared to intermittent pulse usage.

Load (mA)	Capacity Retention	Service Hours
0.2	100%	2800
1.0	95%	2660
3.0	85%	2380
5.0	78%	2184

How Does Temperature Affect CR2354 Performance?

At -30°C, capacity drops to 65% of rated value but recovers when warmed. High temperatures (60°C+) accelerate self-discharge from 1%/year to 3%/year. The datasheet recommends derating capacity by 15% for continuous 70°C environments. Thermal shock tests in the document confirm 98% retention after 50 cycles between -30°C and 60°C.

The battery’s lithium manganese dioxide chemistry exhibits unique thermal recovery properties. When exposed to -40°C for 24 hours (beyond spec limits), capacity temporarily decreases to 50% but fully restores after 48 hours at 25°C. However, repeated deep cooling cycles accelerate electrolyte viscosity changes, permanently reducing capacity by 0.7% per cycle. For arctic applications, Panasonic recommends using their CR2354HT variant with modified separator layers, maintaining 75% capacity at -40°C.

What Devices Commonly Use the CR2354 Battery?

This battery powers car key fobs (Toyota, Honda), glucose monitors (Freestyle Libre), and backup memory for CMOS chips. Its slim profile (5.4mm height) suits compact wearables like fitness trackers. Industrial uses include wireless sensors in HVAC systems and RFID tags for inventory tracking.

How Does the CR2354 Compare to CR2032 or CR2450 Batteries?

Compared to CR2032 (220mAh) and CR2450 (620mAh), the CR2354 offers balanced capacity (560mAh) in a mid-size package. While CR2450 lasts longer, it’s thicker (7.7mm vs 5.4mm). CR2354 provides 23% more runtime than CR2032 without bulk increases. Voltage stability under load (-0.1V drop at 5mA) outperforms both alternatives.

What Safety Precautions Are Listed in the Datasheet?

Panasonic mandates: 1) No soldering directly to cells (use tabs) 2) Avoid charging attempts (non-rechargeable chemistry) 3) Prevent reverse polarity during installation 4) Dispose through certified e-waste channels 5) Never expose to temperatures above 85°C. The datasheet highlights UL certification for leak resistance under standard operating conditions.

Where to Source Authentic CR2354 Batteries?

Purchase from authorized distributors like Digi-Key (part #P070-ND) or Mouser (653-CR2354/F1N). Verify authenticity through Panasonic’s holographic seal and batch code verification portal. Counterfeit cells often miss the patented “step crimp” edge visible under 10x magnification. Industrial bulk buyers can request IEC 61951-2 compliance certificates for medical applications.

Expert Views

“The CR2354’s manganese dioxide electrolyte offers superior voltage stability compared to cheaper carbon-zinc alternatives. In our lab tests, Panasonic’s cells maintained 2.8V after 9 years in storage – critical for emergency devices. Always check the datasheet’s ‘Maximum Continuous Current’ table; exceeding 5mA causes premature capacity drop due to lithium passivation layer formation.” – Dr. Elena Torres, Power Systems Engineer

Conclusion

The CR2354 Panasonic battery excels in reliability-critical applications requiring decade-long performance. Engineers should prioritize datasheet parameters like pulse current tolerance and temperature derating curves when designing battery compartments. With counterfeit rates exceeding 12% in 2023, cross-verifying batch codes through Panasonic’s Battery Authentication Platform remains essential for OEM procurement teams.

FAQs

Can I Replace a CR2032 with CR2354?

Yes, if the compartment fits 20mm diameter. CR2354 provides 2.5x longer life but verify device voltage range (2.8-3.3V). Some car key fobs may require reprogramming after voltage change.

Does the CR2354 Contain Mercury?

No. Compliant with EU Battery Directive 2006/66/EC, it uses 0% mercury. The anode is lithium metal, cathode manganese dioxide, with organic electrolyte.

How to Test CR2354 Capacity?

Use a ZTS Mini Multi-Battery Tester (Model MBT-1). Load test at 4.7kΩ for 10 seconds. Voltage above 2.8V indicates ≥80% capacity. Never use standard multimeters – they don’t simulate real load conditions.