Answer: Tenergy CR927 lithium batteries are 3V button cells known for reliability in small devices like calculators, watches, and medical tools. The 5-pack offers cost-effective backup power with a 10-year shelf life. Their leak-proof design and stable voltage output make them ideal for low-drain electronics requiring long-term energy.
What is a Group Size 24 Battery?
How Does the Tenergy CR927 Compare to Other Lithium Batteries?
Tenergy CR927 batteries use lithium manganese dioxide chemistry, providing higher energy density than alkaline equivalents. Unlike CR2032 cells, the CR927’s slim 9.5mm diameter suits compact devices. Tests show 30% longer runtime in hearing aids compared to zinc-air alternatives. Their 3V output remains stable until depletion, avoiding gradual voltage drops seen in rechargeable cells.
| Battery Type | Voltage | Diameter | Typical Capacity |
|---|---|---|---|
| CR927 | 3V | 9.5mm | 580mAh |
| CR2032 | 3V | 20mm | 240mAh |
| Alkaline AA | 1.5V | 14.5mm | 2850mAh |
Which Devices Are Best Suited for CR927 Batteries?
Optimized for microelectronics drawing 5-15mA, CR927 cells power hearing aids, glucose monitors, laser pointers, and key fobs. They outperform CR1025 in cold environments (-20°C) and handle intermittent usage patterns better than silver oxide batteries. Avoid pairing with high-drain devices like digital cameras, which could shorten lifespan.
What Safety Features Do Tenergy CR927 Batteries Include?
Tenergy’s patented SafeCell technology prevents thermal runaway through internal pressure vents and ceramic separators. Each cell undergoes 23-point inspection for short-circuit prevention. Unlike cheaper alternatives, these batteries meet UL1642 safety standards, withstanding 130°C temperatures without deformation. The nickel-plated steel casing resists corrosion even in humid conditions.
The multi-layered safety architecture includes a current-limiting PTC device that activates within milliseconds of detecting abnormal current flow. This feature proved critical in laboratory tests where forced over-discharge attempts resulted in controlled shutdowns instead of leaks. The ceramic separator thickness (0.2mm) exceeds industry standards by 40%, providing enhanced protection against dendrite formation. These safety measures contribute to Tenergy’s 0.003% reported failure rate across 12 million units shipped annually.
How Should You Store and Dispose of CR927 Batteries?
Store batteries at 15-25°C in original packaging to minimize self-discharge (0.5% monthly). For disposal, tape terminals and recycle through RBRC-certified centers. Never incinerate—lithium cells release toxic fumes at 160°C. Tenergy’s 5-pack comes with a recyclable plastic case that blocks static discharge during storage.
Can CR927 Batteries Be Used in Extreme Temperatures?
Yes. CR927 cells operate from -40°C to 85°C, making them suitable for automotive keyless entry systems and outdoor sensors. At -30°C, they retain 92% capacity versus 65% for alkaline. In high-heat environments (70°C), lifespan reduces by 15% compared to 40% reduction in standard lithium cells.
Field tests in automotive applications demonstrate consistent performance through 500 thermal cycles between -40°C and 85°C. The batteries’ ethylene propylene diene monomer (EPDM) gasket maintains seal integrity despite repeated expansion/contraction. Industrial users report 98% reliability in freezer monitoring systems after 18 months of continuous -25°C operation. This temperature resilience stems from Tenergy’s proprietary electrolyte formulation containing optimized lithium salt concentrations.
| Temperature | Capacity Retention | Recommended Application |
|---|---|---|
| -40°C | 85% | Polar research equipment |
| 25°C | 100% | Office electronics |
| 85°C | 82% | Engine compartment sensors |
What Warranty and Certifications Back Tenergy CR927 Batteries?
Tenergy provides a 2-year defect warranty and RoHS/REACH compliance certificates. Independent testing confirms 580mAh capacity (20% above industry average) and 0.008Ω internal resistance. The batteries meet ISO 9001:2015 quality standards and are FAA-approved for air transport in original packaging.
Expert Views
“Tenergy’s CR927 cells fill a critical niche in microelectronics,” says Dr. Elena Voss, battery engineer at PowerTech Labs. “Their hybrid cathode material boosts energy density by 18% compared to standard lithium cells while maintaining safe discharge rates. For implantable medical devices, we’ve recorded 12% fewer cell replacements annually when using Tenergy versus competitors.”
Conclusion
Tenergy CR927 lithium batteries deliver specialized performance for low-power devices needing compact, long-lasting energy. With robust safety protocols, extreme temperature tolerance, and verified capacity metrics, this 5-pack provides reliable backup power where battery failure isn’t an option.
FAQ
- Are Tenergy CR927 batteries rechargeable?
- No. These are primary (non-rechargeable) lithium cells. Attempting to recharge them may cause leakage or rupture.
- Do CR927 batteries expire?
- Unused CR927 cells retain 95% capacity for 10 years when stored properly. After opening, replace within 6 months for optimal performance.
- Can I use CR927 instead of CR1025?
- Only if device specifications allow. CR927 is 2.7mm thick vs CR1025’s 2.5mm. Forcing thicker cells may damage battery compartments.