Answer: SR527, SR527S, SR527SW, SR64, 319, LR527, and LR64 batteries are silver oxide or lithium-based button cells with distinct sizes, voltages, and applications. SR/LR models differ in chemistry (silver oxide vs. alkaline), affecting longevity and voltage stability. For example, SR527SW is a 1.55V battery optimized for watches, while LR64 (alkaline) suits calculators. Compatibility depends on device voltage requirements and size specifications.
How to Test Continuity with a Multimeter
How Do Specifications Vary Among SR527, SR527S, SR527SW, SR64, 319, LR527, and LR64 Batteries?
SR527, SR527S, and SR527SW share a 11.6mm diameter and 2.6mm height but differ in chemistry: SR527SW uses silver oxide for stable 1.55V output. SR64 (AG8) is smaller (7.9×2.1mm) with 1.55V. The 319 battery (alkaline) delivers 1.5V, while LR527 and LR64 are alkaline variants with lower costs but shorter lifespans in high-drain devices compared to silver oxide equivalents.
| Model | Chemistry | Voltage | Diameter (mm) |
|---|---|---|---|
| SR527SW | Silver Oxide | 1.55V | 11.6 |
| LR64 | Alkaline | 1.5V | 7.9 |
Which Devices Are Compatible With SR527, SR527S, SR527SW, SR64, 319, LR527, and LR64 Batteries?
These batteries power small electronics: SR527SW is ideal for luxury watches (e.g., Citizen, Seiko). SR64 fits calculators like Casio FX-82. The 319 battery works in car key fobs. LR527 and LR64 serve low-drain devices like thermometers. Always verify device manuals, as voltage mismatches (e.g., using 1.5V alkaline instead of 1.55V silver oxide) may impair performance.
Top 5 best-selling Group 14 batteries under $100
| Product Name | Short Description | Amazon URL |
|---|---|---|
|
Weize YTX14 BS ATV Battery  |
Maintenance-free sealed AGM battery, compatible with various motorcycles and powersports vehicles. | View on Amazon |
|
UPLUS ATV Battery YTX14AH-BS  |
Sealed AGM battery designed for ATVs, UTVs, and motorcycles, offering reliable performance. | View on Amazon |
|
Weize YTX20L-BS High Performance  |
High-performance sealed AGM battery suitable for motorcycles and snowmobiles. | View on Amazon |
|
Mighty Max Battery ML-U1-CCAHR  |
Rechargeable SLA AGM battery with 320 CCA, ideal for various powersport applications. | View on Amazon |
|
Battanux 12N9-BS Motorcycle Battery  |
Sealed SLA/AGM battery for ATVs and motorcycles, maintenance-free with advanced technology. | View on Amazon |
What Are the Performance Differences Between Silver Oxide and Alkaline Variants?
Silver oxide batteries (SR series) maintain 1.55V until depletion, ideal for precision devices. Alkaline (LR) variants decline from 1.5V gradually, causing inconsistent performance in clocks or medical devices. Silver oxide lasts 30-50% longer in continuous-use scenarios. Alkaline batteries are cost-effective for intermittent-use devices but may leak, risking device damage.
How to Extend the Lifespan of SR527, SR527S, SR527SW, SR64, 319, LR527, and LR64 Batteries?
Store batteries at 15-25°C in dry environments. Remove batteries from unused devices to prevent leakage. For SR silver oxide types, avoid mixing with alkaline replacements. Use insulative tape to prevent terminal contact during storage. In devices like watches, replace batteries every 2-3 years even if functional to avoid corrosion from aging cells.
What Safety Precautions Apply When Handling These Batteries?
Keep batteries away from children—ingestion risks chemical burns. Use non-conductive tweezers during installation to prevent short-circuiting. Never expose to temperatures above 60°C. Dispose of spent cells at certified e-waste centers; silver oxide batteries contain trace heavy metals. Incineration may release toxic sulfur dioxide gas.
When handling damaged batteries, wear gloves to avoid contact with electrolyte leaks. Store batteries in original packaging until use to minimize exposure to humidity. For industrial applications, ensure proper grounding during bulk installations to prevent static discharge. Manufacturers recommend using dedicated battery testers rather than makeshift metal contacts, which can cause sparks.
How Do Environmental Factors Impact Battery Choice?
In humid climates, silver oxide’s sealed construction outperforms alkaline’s susceptibility to moisture. For sub-zero environments, lithium variants (non-SR/LR) are better, but SR527SW operates reliably down to -10°C. High-altitude devices benefit from silver oxide’s stable voltage under reduced atmospheric pressure.
Devices used in marine environments should prioritize SR-series batteries due to their corrosion-resistant seals. In tropical regions, avoid storing alkaline batteries in non-climate-controlled spaces, as heat accelerates self-discharge rates. For outdoor IoT sensors exposed to temperature fluctuations, silver oxide’s -10°C to 60°C operational range makes it preferable to alkaline alternatives, which may fail below freezing.
“Silver oxide batteries are irreplaceable in horology and medical devices due to their flat discharge curve. However, LR alkaline variants dominate consumer markets due to cost. The trend toward miniaturization will push demand for SR527SW-type cells in IoT sensors, though recyclability remains a challenge.” — Senior Engineer, Global Battery Solutions
FAQ
- Q: Can I use LR64 instead of SR64?
- A: Not recommended. LR64’s 1.5V may cause timing errors in watches designed for SR64’s 1.55V.
- Q: How to test SR527SW battery life?
- A: Use a multimeter: >1.5V indicates sufficient charge. Below 1.4V signals replacement.
- Q: Are these batteries rechargeable?
- A: No—all are single-use. Attempting recharge risks explosion.