The SR416, SR416SW, SR416S, 337, and LR416 batteries are silver oxide button cells with distinct specifications. The SR416 and SR416SW offer 1.55V outputs, while the SR416S and LR416 provide higher energy density. The 337 battery is an alkaline alternative with lower voltage (1.5V). Key differences include chemistry, capacity, and compatibility with devices like watches, calculators, and medical tools.
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What Are the Key Specifications of Each Battery Model?
The SR416 (1.55V, 25mAh) and SR416SW (1.55V, 28mAh) are silver oxide cells. The SR416S (1.55V, 30mAh) has enhanced capacity. The LR416 (1.5V, 38mAh) is alkaline, while the 337 (1.5V, 45mAh) offers higher capacity. Silver oxide models excel in stable voltage, whereas alkaline variants prioritize capacity and cost-effectiveness.
| Model | Chemistry | Voltage | Capacity |
|---|---|---|---|
| SR416 | Silver Oxide | 1.55V | 25mAh |
| 337 | Alkaline | 1.5V | 45mAh |
Which Devices Are Compatible with These Batteries?
SR416/SR416SW/SR416S batteries power precision devices like analog watches, glucose monitors, and laser pointers. The LR416 and 337 suit calculators, digital thermometers, and low-drain gadgets. Compatibility depends on voltage requirements—silver oxide cells are ideal for high-accuracy instruments, while alkaline models fit cost-sensitive, moderate-drain applications.
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How Do Voltage and Capacity Impact Performance?
Silver oxide batteries (1.55V) maintain stable voltage until depletion, critical for precision devices. Alkaline cells (1.5V) gradually decline, affecting performance in high-drain tools. Higher capacity (e.g., SR416S: 30mAh) extends lifespan, making them suitable for medical devices. Alkaline models like the 337 prioritize runtime over voltage stability.
Medical equipment such as hearing aids requires consistent voltage for accurate readings, making SR416SW models preferable. In contrast, alkaline LR416 batteries work better in children’s toys where gradual power reduction is acceptable. Temperature also affects performance—silver oxide cells operate reliably in extreme conditions (-22°F to 140°F), while alkaline versions may fail below freezing.
What Are the Environmental Impacts of Each Battery Type?
Silver oxide batteries contain heavy metals, requiring specialized recycling. Alkaline cells (LR416/337) are less toxic but still need proper disposal. Recycling programs mitigate environmental harm—look for certified e-waste centers. Rechargeable alternatives are limited for button cells, emphasizing responsible disposal.
Silver oxide batteries take 100+ years to decompose in landfills, releasing mercury into soil. Many manufacturers now produce mercury-free versions (labeled “0% Hg”). Alkaline variants decompose faster (30-50 years) but still contribute to zinc and manganese pollution. Always check local regulations—12 U.S. states mandate button cell recycling through retailer take-back programs.
“While alkaline batteries dominate consumer markets, silver oxide cells are irreplaceable in medical and precision engineering. The shift toward mercury-free chemistries is accelerating, but compatibility and voltage stability remain non-negotiable for specialized applications.” — Industry Expert, Power Solutions Inc.
FAQs
- Can I substitute SR416 with LR416?
- No—voltage differences (1.55V vs. 1.5V) may affect device accuracy. Use only compatible models.
- Are these batteries rechargeable?
- No—all are single-use. Rechargeable button cells (e.g., ML614) exist but have different specifications.
- Where can I recycle these batteries?
- Check local e-waste centers or retailers offering take-back programs. Never dispose of in household trash.