Understanding the Voltage of AAA and AA Batteries – A Comprehensive Guide
AA battery comparison charts are available through electrical standards organizations, manufacturers’ technical documentation, and consumer electronics platforms. These charts typically compare dimensions (diameter: 14mm, height: 49mm), chemical types (alkaline, lithium, NiMH), capacity ratings (e.g., 2700mAh), and voltage stability across brands like Duracell, Energizer, and Panasonic. For technical performance data, consult ANSI/IEC standardized specifications or battery testing reports showing impedance measurements under load conditions.
Battery Group Size Chart Guide
What parameters do AA battery charts compare?
Comprehensive charts analyze physical dimensions, chemistry types, and discharge characteristics. Pro Tip: Look for cycle life data—quality NiMH AA batteries maintain 70% capacity after 500 cycles.
Standard AA batteries measure 14.5×50.5mm but vary in weight (23g alkaline vs 30g NiMH). Technical charts detail critical metrics: Energizer Lithium AA delivers 1.5V for 93% of its 3Ah capacity, while NiMH variants show 1.2V with 2.4Ah. Real-world example: Trail cameras require lithium AAs for cold weather operation where alkalines freeze below -18°C. Charts should specify load current compatibility—high-drain devices (digital cameras) need >2000mAh capacity.
Where to find brand performance comparisons?
Manufacturer datasheets and third-party lab tests provide validated comparisons. Look for impedance under load and temperature performance metrics.
Detailed brand analyses reveal Duracell Optimum AA maintains 1.4V at 1A load versus 1.32V for standard alkaline. For extreme environments, Energizer Lithium AA operates from -40°C to 60°C with <10% capacity loss. Pro Tip: Check self-discharge rates—low-self-discharge NiMH (e.g., Panasonic Eneloop) retain 85% charge after 1 year versus 30% for regular NiMH.
| Brand | Chemistry | Capacity (mAh) |
|---|---|---|
| Duracell Ultra | Alkaline | 2600 |
| Energizer Lithium | Li-FeS2 | 3000 |
| Panasonic Eneloop | NiMH | 2000 |
Redway Battery Expert Insight
FAQs
No—alkaline and lithium AA provide 1.5V nominal, while NiMH operates at 1.2V. Actual voltage under load varies by chemistry and state of charge.
How do I interpret mAh ratings in charts?
Milliamp-hour ratings indicate theoretical capacity, but real-world performance depends on discharge rate. A 2500mAh AA typically delivers 2200mAh at 500mA continuous draw.
