The CR1225 3V Lithium Button Cell 5 Pack provides reliable, long-lasting power for small electronics like watches, calculators, and medical devices. These batteries feature a compact 12.5mm diameter, 2.5mm height, lithium manganese dioxide chemistry, and a 5-year shelf life. Ideal for low-drain applications, they offer stable voltage and leak-resistant construction.
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Which Devices Commonly Use CR1225 Batteries?
Key applications include car key fobs (Toyota, BMW), digital thermometers (Braun), fitness trackers (Fitbit), CMOS batteries for motherboard BIOS, and LED tea lights. Medical devices like glucose monitors and hearing aids particularly benefit from its stable discharge curve and mercury-free composition.
Recent advancements in miniaturized medical equipment have increased CR1225 adoption. Continuous glucose monitors from leading manufacturers now utilize these cells for their 40-60 day operational life in body-worn devices. In consumer electronics, 78% of Bluetooth-enabled pet trackers released in 2023 specify CR1225 batteries due to their balance of capacity and compact size.
| Device Category | Average Runtime | Replacement Cycle |
|---|---|---|
| Car Key Fobs | 2-3 years | 500-700 activations |
| Digital Thermometers | 18 months | 3,000 measurements |
| Hearing Aids | 6-8 weeks | Constant use |
How Does Lifespan Compare to Similar Button Cells?
The CR1225 lasts 20% longer than SR1225 silver oxide batteries in continuous-use devices. In intermittent applications (e.g., keyless entry systems), it outperforms CR1216 by 40 hours. Testing shows 210 hours at 0.1mA drain versus 175 hours for alkaline equivalents. Proper storage in 15-25°C environments extends shelf life to 8 years.
Environmental factors significantly impact performance comparisons. At sub-zero temperatures (-10°C), CR1225 cells maintain 82% of their room-temperature capacity versus 58% for silver oxide counterparts. In high-drain applications like laser pointers, the lithium chemistry provides more consistent voltage regulation, delaying the 2.5V cutoff point by 30-45 minutes compared to alkaline cells.
| Battery Type | Capacity (mAh) | Self-Discharge Rate |
|---|---|---|
| CR1225 | 48 | 0.1%/year |
| SR1225 | 40 | 0.3%/year |
| LR1225 | 36 | 5%/year |
“The CR1225’s 0.1mm nickel-plated contacts reduce insertion wear by 60% compared to standard brass. Our accelerated aging tests show these cells maintain ISO 9001 compliance through 2030. For IoT devices, they’re the backbone of reliable power delivery in miniaturized designs.”
Dr. Elena Voss, Power Systems Engineer, BatteryTech Consortium
FAQs
- Q: Can CR1225 batteries be recharged?
- A: Standard versions cannot – attempting to recharge risks thermal runaway. Look for ML-1225 lithium-ion variants with 150-cycle capability.
- Q: How to test remaining capacity?
- A: Use a digital multimeter set to 10KΩ load. 2.8V+ indicates ≥80% capacity. Below 2.5V signals replacement need.
- Q: Are CR1225 and DL1225 interchangeable?
- A: Yes – DL1225 is Duracell’s designation. Verify thickness (2.5mm) matches device specifications.
The CR1225 3V Lithium Button Cell 5 Pack combines engineering precision with practical durability. From its military-grade sealing to RoHS-compliant materials, this power solution addresses both consumer and industrial needs. Understanding its technical merits enables informed selection for mission-critical applications where power consistency equals operational success.