Battery life is one of the most critical operational factors for smart hotel locks. Understanding what affects battery performance helps you plan maintenance schedules, budget for replacements, and avoid guest inconvenience from dead batteries.
Key Factors Affecting Battery Life
Battery Type Comparison
Different battery types offer varying performance characteristics. Choose based on your property's needs and climate conditions:
| Battery Type | Capacity (mAh) | Typical Life | Cost per Battery | Temperature Performance | Best For |
|---|---|---|---|---|---|
| AA Alkaline | 2,500-2,800 mAh | 12-18 months | $0.50-$1.00 | Good | Standard use, moderate climate |
| AA Lithium | 3,000-3,500 mAh | 18-24 months | $2.00-$3.00 | Excellent | Extreme temps, high-use locks |
| AAA Alkaline | 1,200-1,500 mAh | 8-12 months | $0.40-$0.80 | Fair | Smaller locks, budget option |
| AAA Lithium | 1,500-2,000 mAh | 12-18 months | $1.50-$2.50 | Excellent | Compact locks in harsh climates |
| CR123A Lithium (Some models) | 1,500-1,700 mAh | 15-20 months | $2.50-$4.00 | Excellent | High-security, extreme conditions |
💚 Lithium Battery Benefits
- Longer life: 25-50% more capacity than alkaline
- Temperature stable: Works in -40°F to 140°F
- Lighter weight: Easier on lock mechanisms
- Lower self-discharge: 10-year shelf life
- Fewer replacements: Reduces maintenance labor
⚡ Alkaline Battery Advantages
- Lower cost: 50-75% cheaper than lithium
- Universal availability: Easy to source anywhere
- Good for moderate climates: 32°F to 104°F
- Bulk discounts: Significant savings at scale
- Adequate for most hotels: Unless extreme conditions
💡 Pro Tip: Battery Selection Strategy
Use lithium batteries for: Outdoor locks, locks in unheated/uncooled areas (gyms, pool areas), high-traffic rooms, and properties in extreme climates.
Use alkaline batteries for: Standard guest rooms in climate-controlled environments, low-traffic common areas, and budget-conscious properties in moderate climates.