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Battery Capacity and Its Applications
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- Definition and Measurement
- Battery capacity is the total energy stored in a battery
- Capacity is measured in ampere-hours (Ah) or watt-hours (Wh)
- Battery capacity equals current multiplied by time in hours
- Factors Affecting Capacity
- Battery chemistry and type significantly impact efficiency
- Capacity decreases naturally over time (1-2% yearly)
- Temperature affects capacity directly, reducing it at -22°F
- Battery life decreases at higher temperatures
- Battery Types and Applications
- Lead acid batteries used in vehicles and air traffic control
- Nickel-cadmium batteries power railways and military equipment
- NiMH batteries power phones and laptops
- Lithium-ion batteries power calculators and medical devices
- SMF batteries used in telecommunications and security systems
- Maintenance Tips
- Avoid extreme temperatures
- Never overcharge batteries
- Keep batteries unused for long periods
- Avoid fast charging when not necessary